1995 Chevy Blazer 1995 Chevy Blazer misses.

CBURCHETT

MEMBER
1995 CHEVROLET BLAZER
6 CYL
4WD
AUTOMATIC
1,600 MILES

If you stop at a red light or in a drive thru it will start missing, if you put it in drive or neutral and give it alot of gas it will backfire and smoke will come out of the tail pipe then it will stop, might smell some gas. It may do this once every two or three months then at times it will do this then take spells and do it for a few days. Can you please help us with this.

5 Replies

BLACKOP555

MECHANIC
10,371 POSTS

What color smoke is it?

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Saturday, March 21st, 2009 AT 10:00 PM

CBURCHETT

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4 POSTS

Black.

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Saturday, March 21st, 2009 AT 10:19 PM

BLACKOP555

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When its having its spells. I would suggest checking the igniiton system. Sounds like its having quite the burning of fuel.

Could be running extremely rich. Fuel pressure might be good to check in.

Has the IAC module ever been cleaned?

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Saturday, March 21st, 2009 AT 10:29 PM

CBURCHETT

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4 POSTS

Sorry I messed up the Blazer doesnt backfire it just misses, you put it in park give it gas and Black smoke will come out the tale pipe and it will stop.

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Thursday, March 26th, 2009 AT 10:27 PM

BLACKOP555

MECHANIC
10,371 POSTS

Check to make sure that the iac module is good and you have no vaccum leaks.

The IAC module has to be clean and the pintle must be allowed to move freely.

Fuel pressure coudl be too high also.