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95 Chevy G20 van loses power


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Linus
New User

Jan 12, 2010, 8:48 PM

Post #1 of 4 (3449 views)
post icon 95 Chevy G20 van loses power Sign In

95 Chevy van loses power - starts & runs good while cold. Once engine has warmed up about 15 minutes of driving it will idle fine but when you give it throttle it loses power & have to keep on the gas to get anything out of it. Prior to this problem I had to replace the throttle position sensor, fuel injector gaskets, fuel filter. Any suggestions?


DanD
Veteran / Moderator
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Jan 13, 2010, 7:09 AM

Post #2 of 4 (3441 views)
Re: 95 Chevy G20 van loses power Sign In

The basic things I can think of are possible low fuel pressure (weak fuel pump) or restricted exhaust (partly plugged converter)?
You may also want to have the vehicle scanned; not so much just for codes but to compare sensor readings to known good.
When other then the items you mentioned; has the vehicle been serviced, as in tuned-up?

Dan

Canadian "EH"






Linus
New User

Jan 13, 2010, 11:52 AM

Post #3 of 4 (3434 views)
post icon Re: 95 Chevy G20 van loses power Sign In

thanks! what is spec. for fuel press?


DanD
Veteran / Moderator
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Jan 13, 2010, 12:33 PM

Post #4 of 4 (3433 views)
Re: 95 Chevy G20 van loses power Sign In

4.3lt “W” code engine 55-61psi
4.3lt “Z” & 5lt “H” code engine 9-13psi
Engine code is the eight digit of the vehicle’s VIN number.
Dan

Canadian "EH"






(This post was edited by DanD on Jan 13, 2010, 12:41 PM)






 
 
 






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