1995 Chevy Suburban

BARRIOSCORONA

MEMBER
1995 CHEVROLET SUBURBAN
V8
2WD
AUTOMATIC
225,000 MILES

Trouble starting and fails to accelerate the first 3 times I give it gas what may be the problem even after I changed the air control valve?

Friday, November 27th, 2009 AT 6:01 PM

3 Replies

PEAR69

MECHANIC
1,482 POSTS

Why did you change the air control valve?
What is the fuel pressure?
What is the condition of the plugs? What type of plugs are in it?

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Friday, November 27th, 2009 AT 7:11 PM

BARRIOSCORONA

MEMBER
2 POSTS

I changed the air control valve because I thought that would be the problem.
There's nothing wrong with the plugs they are brand new
and the fuel pressure is fine

it is only on start up. The first time I give it gas when I turn it on the motor stalls but if I give gas again it accelerated fine

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Friday, November 27th, 2009 AT 8:25 PM

PEAR69

MECHANIC
1,482 POSTS

Just changing things without testing and confirming that they are good or bad will cost you money and time.
GM ignition systems are designed for A/C Delco spark plugs. If you installed anyother type of plug - change them, no matter how old they are or how they look."Beeeeeeelieve me"
Just saying the fuel pressure is fine does not mean that it is good. Test the fuel pressure -- what psi is it?
Test the throttle position sensor (tps).

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Friday, November 27th, 2009 AT 10:03 PM