i just had a new muffler put on my 2001 blazer and now the car stumbles at high rpm.it has no power.someone told me to undo the battery than hook it back up so the computer in the car can re calibrate?thid true?

Asked by Jun 22, 2012 at 09:00 PM about the 2001 Chevrolet Blazer 2 Door LS 4WD

Question type: Maintenance & Repair

4 Answers

17,945

Yes and no on the computer thing. Worth a try. It is possible to install a muffler backwards, not sure of the effects of this but may be worth finding out. What brand/ size in and out is your muffler. and did you put if on or a shop?

1 out of 1 people think this is helpful.
1,275

why did you have to replace the muffler? Do you have a check engine light on?

1,795

The only reason a muffler would have to be replaced would be because it rusted out, it wont cause a check engine light but you can fail a safety inspection for it.

1,275

It is common for converters to come apart internally. I have done quite a few on these vehicles. Sometimes when they come apart they plug the muffler causing backpressure issues. Thats the only reason i ask. extra flow with new muffler could case internals of convertor to move more and cause intermittent driveabilty problems.

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