Mechanics

CHEVY ROUGH/HARD START/BLACK SMOKE/ROUGH I

1998 Chevrolet Monte Carlo

Engine Performance problem
1998 Chevy Monte Carlo 6 cyl Front Wheel Drive Automatic 142000 miles

This car has the 3.1l v6 and you have to push the accelerater to start it then there is black smoke out the exhaust, heavy at first then just light black smoke. Once I get up to speed it seems to run fine but when stopped it runs rough again. Additionally the service engine light will come on as well as the abs light then sometimes go out. It seems as though there is low vaccuum too.
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24chief
June 18, 2008.




Sounds like its running rich due to the check engine light.

Get it scanned and it will tell us what is wrong and when you post back I can tell you how to fix it!

Get back to me asap.
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Blackop555
Jun 18, 2008.
For grins I decided to check the fuel pressure regulator. When I removed the top line from the regulator fuel was present so I replaced the fuel regulator and that resolved the problem. This is a great site! Thanks for being here!

Tiny
24chief
Jun 18, 2008.
Glad to help!

Common problem when the vehicle runs with that much black smoke!

Good that it cleared up your problem!

Blackop555
Jun 19, 2008.

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