Engine Exhaust System Problems of Toyota 4Runner - part 1

This 2003 Toyota 4runner has 135,000 miles on the odometer and the frame and exhaust system including catalytic converter are completely rusted out and the vehicle is now unsafe to drive. Some frame components have completely rusted and broken off from the frame I. E. Tow hooks, exhaust and engine mounts. The frame is only held on to the body by the shock absorbers. The vehicle can no longer be driven safely. The cost to repair this damage would be prohibitive and I believe that this issue needs to be addressed by Toyota. I purchased this vehicle in good faith and trusted that Toyota quality would last. Please advise any possible recourse. Thank you.

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Upon quick acceleration from a stop position sulfur exhaust fumes enter the passenger cabin and dissipate after 30 to 60 seconds. This is a regular event. Took vehicle to dealer to have the exhaust system checked, they said they did not find anything wrong. I contacted the dealer with a survey of my service experience and told them I know the mechanic did not test drive the vehicle or tell me he could not find anything wrong. I told cavender Toyota service department their mechanic did not test drive the vehicle to duplicate what I experience upon quick/rapid acceleration.

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Tl-the contact owns 2000 Toyota 4runner. The contact states while her vehicle was being diagnosed the mechanic noticed rusting coming from the rear end of the frame. Additionally the contact states there's abnormal burning smell coming from her vehicle. The vehicle was taken to the dealership where the exhaust pipe, Cadillac converter and the right frame. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 200,000. Ng.

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On 7/7/12 I was driving for a dog rescue transport and noticed a strong fuel smell in the vehicle. I thought nothing of it at first since I had just filled up the truck and a gas can. What I did notice was my gas gauge was dropping incredibly fast so I looked for a clear area on shoulder that should the truck catch fire. (very dry in NJ at the time) I found my area and shut truck off and drifted into the shoulder. Exited the vehicle and began rushing to empty the seven dog crates (just in case) on the shoulder behind guard rail. Once we were all clear, I walked over to vehicle and popped hood. There was fuel saturating everything, including still dripping from insulation material under the hood directly onto and around the exhaust area. By Toyota design, there is a clip that retains/separates two hoses directly on top of the fuel line that had worn a hole into the fuel line. On 7/9/12 I went to Toyota dealer to get the hose which I find out is part number 23801(p)-62071. It turns out there are only seven of this listed part in the whole united states and that it would cost me $75 and a week or more to get the part. I went home and browsed the net to find only one store that stocks this item and ordered through them to save about $20 but still the same turn around time (lost about $67 in fuel as tank is now bone dry plus a $250 flatbed tow fee. I am out almost $400). I has been a week my vehicle has been out of service due to a Toyota design flaw, and they will not fess up to the design flaw or even offer a loaner car.

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Engine loosing coolant. Vehicle brought to an independent service station which determined that the vehicle has head gasket failure. 3. 0 v6 engine. Coolant being lost through exhaust system with usual symptoms of this problem. Vehicle has just over 100k miles. Appears this is around the mileage that gasket failures occur. This is a problem for which Toyota previously identified a limited number of vehicles for a recall. However in reviewing this website it appears the problem was ongoing beyond the vehicles identified. Although this is an older vehicle, if it had been recalled and fixed I most likely would not have had this problem. Toyota notified but is denying any responsibility for faulty gaskets beyond identified vehicles.

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My Toyota 4runner has a consistent ammonia smell that leaks into the cabin. This has gone on for a month and hatch Toyota denies it's a problem. My wife and I fear for our health because of this odor. The forums report this problem as far back as 2003, but Toyota says they are unaware of any problem.

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2003 Toyota 4runner sport ed, 6 cyl. - at 100,400 miles, both my catalytic converters went out. Also the check engine light goes on which disengages the vehicle skid control, so I hear. Repairs are costly. Can't smog car on the first time car ever needs to get smogged. Seems like a recall issue to me?.

If the back window is open and the air handler is on recurculate exhaust gets pulled into the car.

Vehicle gives off horrible sulfur smell when accelerating quickly and sometimes even when slowly gaining speed after stop and go traffic on a highway. The dealership where I took it said that this is a known problem and there isn't anything they can do about it. Why do other vehicle's I own not do the same thing with the same gas?.

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Toyota 4-runner 2003 six cylinder. Excessive sulfur dioxide odor. No events leading up to failure. Sporadic. Dealerships gave me a hard time, wanted $150. 00 to run test even though Toyota headquarters informed me that the dealer should just replace parts, so I never have had it fixed but I am concerned. I changed gas stations numerous times and still receive the odor. Odor comes and goes and can be strong at times especially in cold months. Concerns are that it will become worse and the smell is toxic.

Exhaust system. Catalytic converter. Smell of sulfur/rotten eggs when accelerating especially going up a hill. Took car to dealer and they replaced catalytic converters. A few months later the problem persists. It seems now it does this more often.

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When accelerating anything over babying it the vehicle's exhaust emits a strong sulfur (rotten eggs) odor. Whether the windows are up or down the vehicle is filled with the awful stench. With the windows down it is a much stronger unpleasant odor. P. S. The incident date that I first noticed this was 10 - 11 - 2008, but it will only let me go up to 2007 on the selection. I purchased the vehicle the day before. The vehicle is also a 2008 model, which is also not an option to select.

Exhaust is being pulled into back window when cracked and the vehicle resets the air flow to recycle. I crack the back window to allow heat to escape and had the air flow set on fresh air. I make a stop and get back into the car the window is still cracked. Some time later there is a smell of exhaust and I realize the flow was reset and fumes are getting pulled into the vehicle. The biggest problem is my child is in the back seat and she is already choking when the odor gets to me.

Strong sulfur smell when under acceleration.

Excessive sulfur/ammonia smell in the cabin during heavy acceleration. Reported issue to Toyota dealer (puente hills Toyota) during service. Dealer stated no TSB's issued for this problem yet, however, stated that this is a known problem with earlier models of Toyota 4 runners. Since Toyota had yet to issue a TSB for this model year, they could not do anything about it.

I own a 2003 Toyota 4runner and have been experiencing a sulfur/rotten egg smell since I got it. It is intermittent and seems to occur most frequently upon acceleration. There have been times while driving that I get very dizzy. After researching I found there a quite a few complaints about this very problem. It seems along with the sulfur dioxide there is carbon monoxide inside the cabin, regardless if the windows are up or down. Toyota's response is that this is due to bad gas. I like my 4runner but there is no way I can drive it knowing that not only me, but my son also are being poisoned. Toyota must be held accountable and fix this immediately before someone gets seriously hurt!!!!.

Foul smelling exhaust - ammonia smell - very strong on accelerations uphill or freeway on ramps.

I recently purchased a new 2006 Toyota 4 runner. I have had nothing but motor transmission, electrical failures. I have only had my vehicle for 1 month and anything and every thing has gone wrong. I even had to give my daughter cpr on the side of the road due to carbon monoxide inhalation. She went into respiratory failure do to this she has severe asthma.

Almost constant sulpher smell. Dealer states that they have no knowledge of problem, and no TSB's. They tell me to keep rear window closed. When my wife is a passenger she has her eyes burning all the time. If you need to step hard on the gas the whole cabin fills and is enough to make you noxious. Toyota needs to remedy the problem ASAP, or a class action suit should be filed. This problem has soured me on Toyota products for good. Like the vehicle but have a hard time cinvicing my wife to go anywhere in it, she always wants to take her kia sorento, more comfort and nicer amenities. 2004 Toyota 4-runner v-6 ltd 4x4 not acceptable unless you like sulphur smell while driving!.

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Upon acceleration the exhaust emits a very strong rotten egg smell into the cabin of the vehicle. This especially happens when the rear window is lowered.

Ltr fm christine idland (NJ) re a problem with her 2003 Toyota 4-runner, it emits a pungent odor when she presses the accelerator; reply attn derek decosmo/haddon heights office. The NJ oep ran test on the vehicle which determined that when the consumer accelerated the carbon monoxide levels inside the vehicle became elevated. This occurred whether the windows were opened or closed.

Strong sulfur smell (rotten eggs) when accelerating. Can smell with all windows up. Even worse if rear window is down. What's the point of having a rear window if you can't open it. I also own a 2000 4runner and it never smells this way.

Rotten egg/sulfur smell/exhaust entering cabin of vehicle even if windows are up. Have had problem since purchase of vehicle in Aug,2003.

Leakage of sulfur dioxide (so2) fumes from exhaust into cabin of vehicle, smells like "rotten eggs. " exposure to so2 has adverse health effects, source epa. I suffer from asthma and the sulfur fumes create serious safety and health hazard.

I bought a 2003 4-ruuner sport edition withthe v-8 in August, 2003. Ever since I bought the 4-runner, there has been a strong rotten egg smell coming from the exhaust. It happens during acceleration or highway driving. The dealership inspected my 4-runner and said there was no problem. I then had the service writer ride with me to prove the rotten egg smell. I am afraid the exhaust gases getting into the car could create medical problems. I also wonder if my 4-runner will pass emissions inspections and I will be told to have it fixed before I can get a new sticker to drive. All indications is that Toyota has known of this problem and has decided to pretend it does not exist.

Rotten egg smell when the gas pedal is depressed quickly from either a standstill or already moving. I've tried all different types of gas but to no avail.

I am experiencing a repeated chemical sulfur odor in my vehicle cabin on even moderate acceleration. The smell is simply overwhelming. The windows are up, the sunroof is closed, and the air conditioner is set to recirculate. I understand from thousands of other posts on the internet that Toyota claims this is a gasoline issue, but I have recently traveled across the country from miami to seattle, and have experienced this problem throughout the trip. I personally would not care about the exhaust smell if it was outside the vehicle, but with all the windows up, with the sunroof closed, and with the air conditioning on recirculate, it scares me that substantial amount of exhaust fumes are entering the cabin of my vehicle on a regular basis. Only the sulfur smell on moderate acceleration is clue to a larger problem. I fear that something is very, very wrong with this Toyota product. I request that the NHTSA begin investigating this immediately before someone dies inside their Toyota 4runner.

2003 Toyota 4runner v6 limited - large amounts of exhaust fumes in the cabin. Exhaust fumes are experienced regardless of adjustments to environmental controls, including when the air conditioner is running and recirculation on. Exhaust fumes appear to be from the 4runner. All occupants become nauseous and experience significant eye irritation. I have significant concerns for the safety and health of my family, short and long term. I have discussed this issue with two local Toyota dealers. They are unable to fix the problem and appear to be avoiding the specific issue of exhaust fumes in the cabin. They try to redirect the issue to the sulfur smell that the vehicle emits. I don't care about the sulfur smell, but I have real concerns about the exhaust fumes in the cabin.

My problem dates back to 8-9 months ago. I bought my 4runner in Nov. 2002, brand new. After a couple of months my car started to make this sulfer/ammonia smell, every day, every time I accelerate or go up a hill. I have brought in the car 4-5 times to various dealers, everyone said theres nothing wrong, finally Toyota escondido smelled the smell and informed me that Toyota is well aware of the situation but theres nothing they are going to do about it. I have not had to spend any $ yet, but the smell is enough to drive you crazy. I am shocked that Toyota is taking that approach. I pay way too much for my 4 runner to be so unhappy!!!!! please help!!!!!!.

2003 v8 4 runner emits rotten egg smell, primarily during quick acceleration. Was told by dealer to use higher grade of gasoline. Have tried higher grades of gas in the past and this does not always help. Toyota does not see this as a vehicle problem.

We have owned the '03 4-runner for a couple of months and we have consistently experienced a "rotten egg, sulfur / ammonia type smell that has yet to subside. We have tried using exxon, sunoco, and shell 89-93 octane and the smell still persists. It is more apparent with the rear window down, but definitely exists with all windows up. The smell is choking and causes great difficulty to breath. It seems to be caused by moderate acceleration.

We purchased a 2003 Toyota 4runner in March 2003 of this year from power Toyota cerritos. From the first week of driving to the current date, the exhaust emits a sulfur odor during regular as well as hard acceleration. The odor is especially noticeable when the rear window is rolled down. Currently we have over 5,000 miles on the vehicle and have confronted the tustin Toyota dealership where we have had it serviced a couple of times. We receive the same response everytime that it is normal and due to the gasoline or the catalytic converter needs to "burn in". Since CA has the strictest emission laws, I'm sure the gas is the least of our worries. I read on alldata. Com that there is a TSB (eg003-03) for a sulfur smell, however there is no specific data on it. I have read hundreds of complaints on this issue on sites like edmunds. . Read more...

I have a 2003 Toyota 4runner and have had a strong sulfur smell inside the vehicle when accelerating to higher speeds. This smell is extremely irritating and this problem appears to be happening more frequently. Toyota reps say its the gas, but my 2001 Toyota sienna has never done this, even though the same gas is purchased from the same source. Judging by all the similar complaints I've read Toyota has a problem that is either being mis-identified, or ignored. One Toyota service man informed me that the 2003 4runner has a new catalytic converter. Seems logical to look into that area first.

My husband purchase a 2003 4 runner for me and while driving I have had a strong smell of rotten eggs in the car which has cause headaches;stomachaches as well as blur of vision. It not only comes through the windows while down but also through the ventsand more so while my air conditioner is on .

Terrible sulfur smell on acceleration of 2003 4runner 6 cylinder sport. Most noticeable when the rear window is down. Complained to dealer twice. Told it was the gas I was using twice. Tried numerous different brands of gas with no improvement. I don't believe any of this. There must be something wrong with the catalytic converter or another exhaust component. Wondering if the exhaust smell could contain carbon monoxide!.