Nine problems related to catalytic convertor have been reported for the 2004 Toyota 4Runner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota 4Runner based on all problems reported for the 2004 4Runner.
1. ) there is a serious "clunk" noise when braking and also the same noise when starting from a complete stop when you take foot off brake. 2. ) there is "sulfur smell " in cabin from catalytic converter.
Excessive sulfur smell when accelerating. Occupants of the car can smell the sulfur, and all windows must be rolled up in warmer weather to block out smell. I have taken the vehicle to the Toyota dealership, but they will not fix the problem because there is no TSB for the v8 (but there is for the v6) Toyota 4runner.
After 2. 5 years and about 25000 miles, my 4 runner sport develops a strong sulfur odor inside the cabin when driving. Brought the car to the dealer (caldwell Toyota) in west caldwell, NJ who informed me the problem was normal and caused by the type of fuel used. Caldwell Toyota had no answer to my question why the problem suddenly surfaced after 2. 5 years nor did they offer to further investigate. The caldwell Toyota technician could not explain how the sulfur smell from the exhaust, which should be contained within the engine and should only to be expelled from the car through the muffler entered, the cabin while driving (seems physically impossible). The strong sulfur odor inside the cabin causes nausea, light headiness and general discomfort, which distract me from driving. This problem should be investigated as a potential cause for Toyota 4runner accidents.
: the contact stated while driving at any speed or even parked with the engine running, there was strong gas odor inside the cabin. The vehicle was taken to an independent certified mechanic who discovered rust in the injection system and a catalytic converter failure.
My 2004 sport 4runner has a periodic strong sulfur smell ongoing since I bought the vehicle in August.
Purchased Toyota 4 runner v8 sport edition in may 2004. After approximately 2,000 miles, the car began have almost constant sulfur emissions (heavy smell) within the car with windows either up or down, and with either fresh air or recirculated air. The odor is noxious and exacerbating health problems. Dealership (conicelli) told me this smell was normal and unavoidable. TSB from Toyota about this problem does not include the v8, but the problem is evident.
I have a 2004 Toyota 4 runner. I noticed the extreme sulfur odor within the first 500 miles of driving the vehicle. I was told it was just a coating on the engine. Naive as I am I believed them. I am at 20,000 miles and many complaints to Toyota only to be told it was the gas. They have done the TSB but no avail. It is still there and not healthy.
Between June 04, and October 05. These problems still exist. . My truck is in the shop now. Left side manifold catalytic converter assembly, one manifold stud broken, technician drilled and removed stud then retapped hole. New stud installed. C/s vsc light on engine light on, catalytic inefficiency. Converters changed out. Replaced catalytic converters. A c/s vsc light lit, yaw sensor out of tolerance, recalibrated yaw sensor.
2004 Toyota 4 runner has had a horrible sulfur smell since we bought it. Dealer replaced catalytic converte and now the smell is worse. Dealer now says there is nothing they can do.