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Catalytic converter and engine misfire


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Paulf615
Novice

May 26, 2017, 1:45 PM

Post #1 of 2 (356 views)
Catalytic converter and engine misfire Sign In

1999 chevy s10 v6 128000 miles
Long story short my tuck has an engine misfire. When I first bought the truck it jumped around through several mechanics all trying to fix a misfire issue (it was a real mess and quite a process). Eventually a mechanic said that the engine head needed to be replaced and that the dealer should fix it for free. When brought back to the dealer (the truck wasnt running at this point) he refused to replace the engine head but attempted to fix it for free. He ended up replacing the fuel injectors and a couple other parts and got it running, however in the end the engine misfire was never fixed. Once it passed inspection I figured Id just drive it with the misfire. After about 5 months of driving the car I started having issues with the catalytic converter. I brought it back to the dealer and he fixed it for 300$. Its been about 3 or 4 months since that repair and im now getting the same symptoms of a cat failure as I was before. Ill be bringing it back to the dealer and see if he will replace it for free since he never fixed the problem. I know a misfire can cause the cat to fail but that quick? Should I have him just replace the cat again, just for it to fail again? Should I have him just take out the cat and bipass it (understand that this is bad for the enviroment and is illegal). I just want a reasonably permenent fix at a low cost without asking for too much for free (what should he offer to do for free?). Any advice or suggestions would be much appreciated.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 26, 2017, 2:24 PM

Post #2 of 2 (353 views)
Re: Catalytic converter and engine misfire Sign In


Quote
however in the end the engine misfire was never fixed. Once it passed inspection I figured Id just drive it with the misfire.


How did it pass inspection if it had a misfire? That would fail it immediately.



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