Lexus awd system malfunction - To fix an AWD system malfunction in your Toyota RAV4, first try resetting the system by turning off the engine and restarting it. If the issue persists, check the tire pressure and sensors for consistency and functionality. Addressing an All-Wheel Drive (AWD) system malfunction in your Toyota RAV4 can be critical for maintaining optimal vehicle.

 
Lexus awd system malfunction 2wd mode engaged. If you’re driving a Lexus with all-wheel drive, you expect that your car will be able to handle any type of terrain or weather conditions. But what happens when the all-wheel drive system stops working?. Publix pharmacy at south hampton village

Is350 AWD upvotes ... Members Online. Shift System Malfunction Update upvotes ... this subreddit is your cozy corner to share stories, ask questions and connect with other Lexus lovers. Members Online. My Stock 91’ Ls400 2. upvotes ...Oct 31, 2020 · lexus. lilithlex October 31, 2020, 4:35pm 1. A while ago my “check awd system” light on my 2010 Lexus RX350 illuminated. The car has been well maintained and I rarely drive it (maybe 10 miles a week). It still seems to drive the same, but the light is on. I thought it was linked to the gas cap, because it seemed to appear out of nowhere and ... Jan 8, 2018 · Lexus Mechanic: Ron Z. When the Check Engine light comes on, the AWD and Trac warnings are also set, which turns these systems off. This is a self-preservation mechanism, in case the reason the Check Engine Light is on can harm or effect the AWS or Trac systems. So- fix the reason why the Engine Light is on, and the AWD and Trac systems will ... My 2010 Lexus Rx350: Signs appear - Check engine, Check AWD System and Slippery Road. I was on the way to the Lexus Dealer for a $160 diagnostic check. But before going there I tried the following procedure and ALL SIGNS DISAPPEARED. —- fill up the gas tank, drove for a minute and push hard brake, stop and turned off the engine.Feb 21, 2023 · Solution. The first thing you should do when your 'trac off' warning comes on without any other warning lights (except the vehicle stability control) is check whether the traction system has been turned off. If your system is switched off, hitting the switch will have your Lexus running right as rain. 2. Solution. The first thing you should do when your 'trac off' warning comes on without any other warning lights (except the vehicle stability control) is check whether the traction system has been turned off. If your system is switched off, hitting the switch will have your Lexus running right as rain. 2.When the AWD system malfunction warning appears in a Lexus vehicle, it means that the vehicle is currently operating in 2WD mode instead of the expected AWD mode. This issue can occur for a variety of reasons, including a malfunctioning sensor or a problem with the drivetrain.So the answer is "maybe". You need to pull the codes and determine what they are, and if they are caused by a faulty sensor, or if the sensor is working and indicating an actual problem. You have no cabin heat, so the thermostat is likely legitimately bad, but the AWD light may be triggered by something else. -- Rich. IRanNaked and Ron P44. Like.Learn how to identify and troubleshoot the warning lights on your Lexus dashboard with this helpful guide from My Lexus Resources.Tình hình là xe Lexus RX 350 của ông già em đang báo lỗi "Check AWD system" và hiện cả hình chiếc van khóa nước, lo quá, em đã tìm 1 bài viết liên quan trên diễn đàn but hình như bị xóa mất rùi.Em xin nhờ …Here are a few reasons why the AWD light, in particular, might come on: 01. There is a problem with the transfer case sensor and moisture. Remember that the AWD system transfers power from the engine to the tires? The transfer case and gearbox are the combinations in the car that make this possible.16 years of experience. Hello there, many faults will cause your 2005 AWD malfunction light to be on in your 2005 Ford 500. The most common faults are the shift linkage, low fluid level, or a wiring harness fault. A qualified technician, such as one from YourMechanic, will be able to diagnose the AWD malfunction light and guide you …Jan 8, 2018 · Lexus Mechanic: Ron Z. When the Check Engine light comes on, the AWD and Trac warnings are also set, which turns these systems off. This is a self-preservation mechanism, in case the reason the Check Engine Light is on can harm or effect the AWS or Trac systems. So- fix the reason why the Engine Light is on, and the AWD and Trac systems will ... Lexus Troubleshooting. 2017 Lexus NX says check engine and AWD system malfunction. Mechanic's Assistant: Is the AWD light blinking or flashing, or is it solid? …This morning I start the engine and I see the error message on the screen "AWD System Malfunction 2WD Mode Engaged" with the 'Check engine' light on …My car is a Lexus RX350L, 2021 model, 2127 miles, automatic gear, scanner code was C1280 and PO32515. A week ago as I started the car it came up with two notifications on the dashboard: 'Secondary Collision Brake system Malfunction' and 'AWD System Malfunction 2WD Mode Engaged' Visit Your Dealer.1. Suspension Issues. The Lexus NX is a great vehicle, and there is no doubt about it. However, it is known for suspension problems. There are also reports of unusual deafening noises, rattles, and leaks. For instance, leaks are noticed in the suspension system. This causes the fluids to move out and adversely affects the vehicle’s performance.Sep 17, 2022 · Hydraulic pressure is vital for the AWD to function properly, so a small leak will cause the system’s fail to work. To sort out this issue, make sure you choose the spot-on tire size, clean the wiring periodically, and check for the shaft seal to see whether it is tight. Besides, it won’t hurt to check the tire pressure of the Lexus RX 350. HI Kathy. Possible causes include a failed rear differential unit, a fault in the transmission control system including transmission control module, shift or pressure solenoids and switches, transmission range switch. You can try to reset the systems by disconnecting the negative battery cable from the battery for 10 minutes and then …The AWD system relies on several sensors, such as wheel speed sensors and yaw rate sensors, to function properly. A faulty sensor can cause the AWD system to go into 2WD mode. Mechanical Failures. Mechanical issues like damaged differentials or a failed transfer case can also cause this problem. Software GlitchesWhen the AWD system malfunction warning appears in a Lexus vehicle, it means that the vehicle is currently operating in 2WD mode instead of the expected AWD …Symptom: AWD System Malfunction - 2WD Mode Engaged Error. Cause: Inadvertently attempted to start the car with one coil unplugged after replacing the spark plugs. Solution: 1) Connected the spark plug coil.Feb 3, 2024 · Received 1,135 Likes on 841 Posts. First start with washing the sensors with soapy warm water to see if it might just be some debris or dirt blocking any sensors. If that doesn't work, try to eyeball each sensor to identify if any look scratched or damaged from the outside. The Chrome OS Recovery Tool is a powerful tool provided by Google that can help users resolve a variety of common issues they may encounter with their Chromebook. Whether you’re ex...In this video i show you how i came up with a fix for my annoying ABS/TRAC/AWD/ warning lights, what works for me may or may not work for you. This works for...Julio Quispe. 1,127 satisfied customers. 2015 Lexus nx200t. AWD malfunction disengaged and 2WD. 2015 Lexus nx200t. AWD malfunction disengaged and 2WD engaged note , check engine light on solid. get a P0136 power train, O2 circuit … read more. Paul M ASE Master. ASE Master Tech.Lexus Troubleshooting. 2017 Lexus NX says check engine and AWD system malfunction. Mechanic's Assistant: Is the AWD light blinking or flashing, or is it solid? …I believe Lane Departure Assist is cancelled when the signals are used. Otherwise it would false alarm when you change lanes to pass, exit or enter. Pre-Collision Warning may be too since the system assumes the driver is in control when he puts the signals on. Fred. 2011 RAV4 V6 4WD Dark Green Metallic - wife's ----- 2018 Accord …1. Restart the Vehicle’s Computer. 2. Inspect and Repair Wiring Issues. 3. Perform Regular Maintenance. 4. Consult a Professional. Armed with this knowledge, you can keep your …If you own a Ford vehicle, you may encounter some issues from time to time. Whether it’s a strange noise coming from under the hood or a malfunctioning electrical system, troublesh...Join. 2014 RX 350 F-Sport 'Check AWD System' Issue. Hey everyone! Just started experiencing this issue today, but thinking it may have stemmed from a recent service …My 2010 Lexus Rx350: Signs appear - Check engine, Check AWD System and Slippery Road. I was on the way to the Lexus Dealer for a $160 diagnostic check. But before going there I tried the following procedure and ALL SIGNS DISAPPEARED. —- fill up the gas tank, drove for a minute and push hard brake, stop and turned off the engine.Toyota Rav4 is a popular SUV. Its AWD system is also appreciated for its outstanding accuracy and efficiency. Similar to other car models, the cause of this can be one or several of the five common causes that we have listed above: Loose gas cap. Issues with the transmission system. Speed sensor errors. Ignition on.Symptoms of a hybrid system malfunction include poor acceleration, the vehicle running solely on fuel, poor fuel economy, and the vehicle going into limp mode. Diagnostic trouble codes (DTCs) associated with a malfunctioning hybrid system include P08A0, P0A7F, P0A92, P0AA6, and P0AC4.Generally, this brake system fails due to problems with pre-collision sensors. Among them, dirty sensors are the ultimate reason. Over usage, extreme weather agents such as ice, snow, litter, or even intense sunlight can reduce the sensor’s sensing capabilities. The wisest solution is to clean the sensor.The Toyota PKSB is the Toyota Parking Support Brake, and it’s supposed to help drivers shift in and out of park. If PKSB is malfunctioning, there’s likely a problem with the computer system that dictates information from the sensors to the parking apparatuses. There could also be an issue with the parking brakes.However, like any vehicle, the AWD system of the Lexus RX 350 can sometimes develop issues that require attention. In this article, we will discuss the common symptoms and causes of AWD system malfunction in the Lexus RX 350, helping you identify and fix these problems in a hassle-free manner. Symptoms Of Awd System MalfunctionIf your 2018 Toyota RAV4 is showing an "AWD System Malfunction" warning, here are some steps you can take: Check for additional warning lights. Consult the owner's manual. Inspect AWD fluid levels. Attempt a system reset. Scan for diagnostic trouble codes.Aug 10, 2023 · 1. Locate the AWD Control Module. The first step is to locate the AWD Control Module. This is typically found within the engine compartment or under the interior dashboard, but the location may vary based on your specific model. Refer to your vehicle’s manual to find the exact location. Hi there. There is more than just clearing the light to this situation; there is a fault with the all wheel drive system. This system relies on many mechanical, electrical, and computer components to operate properly and safely. This fault, if not corrected, can lead to more faults if not possible safety concerns.C1201 ERROR CODE: MEANING, SYMPTOMS, CAUSES AND SOLUTIONS (Control System Malfunction). In this video, we will discuss how to fix the C1201 error code. The C...How To. How to Resolve Awd System Malfunction & Get Your Lexus Out of 2Wd Mode. By Man of code February 1, 2024. To fix the AWD system malfunction with …The Check AWD System Message is an indication that there is a malfunction in your AWD system. ... In conclusion, maintaining your Lexus’s AWD system is crucial to ensuring that your vehicle is safe and reliable on the road. By following the tips outlined in this article, you can help to prevent problems with your AWD system and troubleshoot ...I recently purchased a 2017 Toyota Rav4 Hybrid from the dealership in March of 2022. It is currently displaying "AWD System Malfunction 2WD Mode Engaged" , "Pre-collison system malfunction visit your dealership" when I start the vehicle and put it into Drive, but the vehicle will not actually drive and tells me to put it back into Park.The Nissan Ariya is a newer electric crossover vehicle from Nissan, and it has a lot to offer. With its all-wheel drive system, advanced technology, and sleek design, the Ariya is ...In this video i show you how i came up with a fix for my annoying ABS/TRAC/AWD/ warning lights, what works for me may or may not work for you. This works for...My 2015 Rx350 (60k miles) showed a check engine light: "Trac Off" and then switching to "Check AWD System" while I was driving. Some people said it may be the gas cap. Initially I tightened it but it had no effect. I then reset the "maintainence required" and no effect.2019 Lexus RX Edit. Kelley Blue Book®. Trade-In Value: $26,550. Valid for ZIP Code 23917 as of 05/02/2024. Mileage:AWD system not functioning effectively, 2016, I have serviced it: changed - Answered by a verified Lexus Mechanic We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them.Since then, the notification “AWD System Malfunction. 2WD Mode Engaged. Visit Your Dealer” has gone on 3 times. The first time, the car guy said it was just a big in the code and he cleared it. The second time, my gas cover want on tight enough. It just went on again and I’m almost embarrassed to bring it back.Water damage caused by appliance malfunctions, plumbing problems and other household events may be covered by a home insurance policy. But homeowners should be aware of some exclus...Braking power low. Stop in a…. Several warnings on dashboard. Braking power low. Stop in a safe place. Lane departure alert malfunction. Pre- collision system malfunction.Visit your dealer. Lexus ES 350 year 2016 .Please advice.📰 Table Of Contents1 How to Troubleshoot and Resolve AWD System Malfunction with 2WD Mode Engaged2 Never Do This to Your Car (Learn from My Mistake)3 What is the meaning of AWD malfunction on a car?4 What does the «AWD malfunction service required» refer to?5 Why is the AWD warning light illuminated on my vehicle?6 […]When the AWD system malfunction warning appears in a Lexus vehicle, it means that the vehicle is currently operating in 2WD mode instead of the expected AWD mode. This issue can occur for a variety of reasons, including a malfunctioning sensor or a problem with the drivetrain.Lexus NX Service, Maintenance & Troubleshooting. ... AWD system Malfunction 2WD Mode Engaged. Jump to Latest Follow 21 - 22 of 22 Posts. 1 2. W. wemovethangz · ...Several issues could potentially cause check AWD system errors on a Lexus RX 350 such as using incorrect fuel type (A92), unchanged or missing bridge oil, transfer case sensor error or sensor inside failure due to component malfunctions internally connected with the all-wheel drive system.The AWD system malfunction signal might activate for various reasons, and the driver will require diagnostic equipment to talk to the car’s computer system and figure out the problem. However, if you consider yourself handy and are familiar with automobiles, you may be able to resolve some of the problems that led to the AWD system failing. ...It just came on this morning. there is AWD malfunction message, 2 WD engaged and traction control is off. Lexus Mechanic: Amedee. The check engine light illuminates for emission purposes only. It may or may not be associated with an engine running or performance issue (or transmission issue). Even if the check engine light is …2017 toyota rav4 awd system malfunction 2WD mode engageAug 28, 2022 · It just came on this morning. there is AWD malfunction message, 2 WD engaged and traction control is off. Lexus Mechanic: Amedee. The check engine light illuminates for emission purposes only. It may or may not be associated with an engine running or performance issue (or transmission issue). Even if the check engine light is not illuminated on ... Perhaps this may help: "Toyota's other new safety system is Drive-Start Control. According to the automaker, if the system senses that the wrong gear has been selected from Park while the driver is pressing on the accelerator, a warning is flashed on the dashboard and engine output is reduced "to limit a sudden start or acceleration."There are a few different things that you can do to fix an AWD system malfunction. One of the first things you should do is check the fuse box and make sure all of the fuses are intact. If one of the fuses is blown, replace it with a new one. Next, check the battery and make sure it is properly connected.When the ABS light / comes on in your RX, the anti-lock braking system is disabled. The vehicle can still be braked without ABS. But if the BRAKE light / also comes on, it indicates a malfunction in the braking system and you must stop driving due to risk of brake failure.. 1. Bad wheel speed sensor. Lexus RX has an ABS sensor at each wheel …AWD on 2016 lexus rx 350 message reads AWD system failure 2WD active. also car would not start, had to jump it. Mechanic's Assistant: Have you checked the battery, particularly the terminal connections? Are they corroded? They are not corroded. Mechanic's Assistant: Are you fixing your RX 350 yourself? What have you tried so far?Toyota Mechanic: Daniel Chaidez. It means that the engine computer has detected a leak in the evap system. Check to see if the gas cap is not loose and if its not then this would be a damaged hose or fitting in the system that would need to be replaced to fix this issue.Then disengage the parking brake. Hit the gas lightly. If the car tries to move forward, your AWD is working properly. You can remove the jack and drive your car in AWD. If the car does not attempt to go forward, then your vehicle is stuck in 2WD, and you should take it to the mechanic’s shop or dealer immediately.lexus. lilithlex October 31, 2020, 4:35pm 1. A while ago my “check awd system” light on my 2010 Lexus RX350 illuminated. The car has been well maintained and I rarely drive it (maybe 10 miles a week). It still seems to drive the same, but the light is on. I thought it was linked to the gas cap, because it seemed to appear out of nowhere and ... We would like to show you a description here but the site won’t allow us. Janitrol furnaces are known for their reliability and efficiency. However, like any other heating system, they can experience issues over time. One common problem that homeowners o...Lexus awd system malfunction 2wd mode engaged. If you’re driving a Lexus with all-wheel drive, you expect that your car will be able to handle any type of terrain or weather conditions. But what happens when the all-wheel drive system stops working?Feb 21, 2023 · Solution. The first thing you should do when your 'trac off' warning comes on without any other warning lights (except the vehicle stability control) is check whether the traction system has been turned off. If your system is switched off, hitting the switch will have your Lexus running right as rain. 2. Lexus Model: 2002 RX300 AWD. Posted January 18, 2006. Hello I have a 99 rx300 and the code P1354 came out. It reads VVT System Malfunctioning (Bank 2). Does anyone have an idea on what exactly I need to replace. …Dec 4, 2022 · Labor: 1.0. To diagnose the P1349 Lexus code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour. Lexus Model: 2002 RX300 AWD. Posted January 18, 2006. Hello I have a 99 rx300 and the code P1354 came out. It reads VVT System Malfunctioning (Bank 2). Does anyone have an idea on what exactly I need to replace. …Hi guys, my GS450h did this about 3 years ago,stayed on for 2 days till Lexus could check it out (although everything was working OK by the displays) then went off on the way to the dealer, they said it needed a software update and (touch wood ) it has not happened again for 120,000 miles so dont despair.1) Check VSC System Handbook says: "Malfunction of VSC function of the vehicle dynamics integrated management is detected.Take your vehicle to any authorised Lexus dealer, etc...)" 2) Check Hybrid System Handbook says: "Hybrid system malfunction is detected. Stop your vehicle and call any authorised lexus dealer, etc...) 3) Check AWD System Drive Straight: Drive straight for a few minutes, keeping your speed below 30 mph. Pay attention to any unusual noises, vibrations, or pulling to one side. These can be signs of a faulty AWD system. Turn Left and Right: Make a few left and right turns at low speed, making sure to turn the steering wheel fully. Lexus vehicles equipped with Gen11 multimedia or newer provide Vehicle Alert Notifications in real-time. Lexus vehicles with earlier multimedia generations transmit Vehicle Alert Notifications in near-real-time – after any of the soft key options is selected on the alert screen shown on the multimedia system, or after one drive cycle of 10 minutes is completed.The most common Lexus RX problems are as follows: Massive oil leak and loss of oil pressure — reported by over 100 owners. Air-conditioning fault due to failed A/C amplifier — reported by more than 80 owners. Software upgrades for GPS, radio, and heater operation — reported by over 20 owners.Jan 5, 2023 · I recently purchased a 2017 Toyota Rav4 Hybrid from the dealership in March of 2022. It is currently displaying "AWD System Malfunction 2WD Mode Engaged" , "Pre-collison system malfunction visit your dealership" when I start the vehicle and put it into Drive, but the vehicle will not actually drive and tells me to put it back into Park. If you're tracking the AWD system malfunction warning light on your vehicle, follow these steps: Read Owner's Manual: Consult your vehicle's owner's manual to understand the meaning of the warning light and any recommended actions. ... Used Lexus RX. 44 Great Deals out of 1,214 listings starting at $4,995. Used Nissan Rogue. 140 …There are various possible reasons why a car makes a humming or whirring noise as these sounds could be a sign of a bad bearing in the steering system, water pump or alternator. Ca...

The most common Lexus RX problems are as follows: Massive oil leak and loss of oil pressure — reported by over 100 owners. Air-conditioning fault due to failed A/C amplifier — reported by more than 80 owners. Software upgrades for GPS, radio, and heater operation — reported by over 20 owners.. Jb bridge traffic today

lexus awd system malfunction

My car is a Lexus RX350L, 2021 model, 2127 miles, automatic gear, scanner code was C1280 and PO32515. A week ago as I started the car it came up with two notifications on the dashboard: 'Secondary Collision Brake system Malfunction' and 'AWD System Malfunction 2WD Mode Engaged' Visit Your Dealer. 2024 Lexus NX 250 TPMS Malfunction . Today, my TPMS randomly malfunctioned. ... It could be a slow leak. Otherwise, if the actual TPMS system is failing I’d get it looked at. Reply reply FinalCM24 ... 2021 IS350 AWD Bagged upvotes ...This message is the most common indication that your all-wheel-drive system is malfunctioning. When your car’s built-in electronics detect something wrong, it displays this message to alert you. When you see this warning, it also means that the AWD system is electronically disabled. This is done to protect the system from further damage.Feb 21, 2023 · Solution. The first thing you should do when your 'trac off' warning comes on without any other warning lights (except the vehicle stability control) is check whether the traction system has been turned off. If your system is switched off, hitting the switch will have your Lexus running right as rain. 2. 2015 Lexus nx200t. AWD malfunction disengaged and 2WD engaged note , check engine light on solid. get a P0136 power train, O2 circuit malfunction ... AWD system malfunction 2WD Mode engaged- what is this about and is it safe to drive today until I get to service ...Lexus awd system malfunction 2wd mode engaged. If you’re driving a Lexus with all-wheel drive, you expect that your car will be able to handle any type of terrain or weather conditions. But what happens when the all-wheel drive system stops working?The 2015 Lexus NX 200t has 8 NHTSA complaints for the unknown or other at 21,600 miles average. ... Engine light on with AWD system malfunction warning due to a gas cap.System warning lights The master warning light does not come on or flash in the following cases. Instead, a separate system warning light will come on along with a message shown on the multi-information display. Malfunction of the ABS The ABS warning light comes on. Malfunction of the charging system The charging system warning light comes on. My car is a Lexus RX350L, 2021 model, 2127 miles, automatic gear, scanner code was C1280 and PO32515. A week ago as I started the car it came up with two notifications on the dashboard: 'Secondary Collision Brake system Malfunction' and 'AWD System Malfunction 2WD Mode Engaged' Visit Your Dealer. 1. Suspension Issues. The Lexus NX is a great vehicle, and there is no doubt about it. However, it is known for suspension problems. There are also reports of unusual deafening noises, rattles, and leaks. For instance, leaks are noticed in the suspension system. This causes the fluids to move out and adversely affects the vehicle’s performance.In this video we diagnose a Hybrid fault on a Lexus RX400 HybridFor Bulletins used in this video visit DDTSB.COMFor scantool used in this video;Launch X431 P...I believe Lane Departure Assist is cancelled when the signals are used. Otherwise it would false alarm when you change lanes to pass, exit or enter. Pre-Collision Warning may be too since the system assumes the driver is in control when he puts the signals on. Fred. 2011 RAV4 V6 4WD Dark Green Metallic - wife's ----- 2018 Accord …So I started getting the shift system malfunction issue back in November 2023 and I bought my car in 2022. The car had been back-and-forth to Lexus and they never could seem to fix this issue on the last repair they had my car for 57 days and yes, they gave me a loaner , but I decided to look into the lemon law because from reading here I ...The most common Lexus RX problems are as follows: Massive oil leak and loss of oil pressure — reported by over 100 owners. Air-conditioning fault due to failed A/C amplifier — reported by more than 80 owners. Software upgrades for GPS, radio, and heater operation — reported by over 20 owners.I just got this message: AWD System Malfunction 2WD Mode Engaged Visit your dealer? Mechanic's Assistant: What is the model/year of your Lexus? 2016 RX350. ... AWD on 2016 lexus rx 350 message reads AWD system failure 2WD active. also car would not start, had to jump it. ...Lexus / By The GearShifters Team. If your Fusion has all-wheel drive, you might see a message on the message center in the car that reads Check AWD or AWD Off. If the alert suggests that the system needs to be checked, there may be an issue and you should have the car checked out. If it indicates that the all-wheel drive system is off, it has ...Maintaining a healthy lawn requires regular watering, and a Rain Bird sprinkler system is an efficient way to keep your grass green. Unfortunately, these systems can suffer from we...Visit Balise Lexus in West Springfield #MA serving Springfield, Longmeadow and Northampton #4S3BNAN63H3020170. Balise Lexus. Sales: Call Sales Phone Number 413-306-3051. Service: Call Service Phone Number 413-787-0099. ... Lexus Model Showroom; Lexus AWD & 4WD Models; Financing.This has happened several times to people in both 4th generation and 5th generation RAV4s. Believe it or not, the AWD notice can occur if your gas cap is not tightened properly. This would account for it going away for a few weeks. A gas station attendant improperly tightened it at one fill up and at the next fill up it was tightened correctly ....

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