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GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 27667
Experience:  GM Grand Master Technician 2007. 11 years experience.
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1999 chevy venture: labors to accelerate..gas pedal..vents..stall

Resolved Question:

vehicle: 1999 chevy venture van Problem: after driving just about 20 mins on freeway, van "chugs" or labors to accelerate, i let off the gas pedal then continue to drive and it is fine. minutes later smoke fills the van with smell of burning plastic: we already checked under the dash for a "burn" and found only 3 shorts... fixed them. then we changed the 2 filters under the dash and cleaned out the vents etc... the van does not overheat or stall. When i shut the van off it restarts with no hesitation. we also checked under the hood for evidence of burning and found none.
Submitted: 2 years ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 2 years ago.

GM Tech (Cam) :

Hello, I'm Cam. Please include all the details about your issue so I can accurately advise you. I cannot see your vehicle so please be detailed.

GM Tech (Cam) :

When did you last change the fuel filter?

Customer:

not in the last 2 yrs I have owned it

GM Tech (Cam) :

Ok I would look to that being plugged.

Customer:

that simple? where does the smoke come from

Customer:

the burning plastic smell

GM Tech (Cam) :

On that, where did you find the shorts?

Customer:

under the dash

GM Tech (Cam) :

I ask because the wiring for the fuel pump goes under the carpet to the rear drivers seat area

GM Tech (Cam) :

so if the pump is failing or shorting that could cause it.

GM Tech (Cam) :

Did any systems go out when the shorts happened?

Customer:

no the car did not stall, i shut it off, but restarted it in a few minutes without any problems

GM Tech (Cam) :

That is strange.

Customer:

ok.... but u gave me new insight........ty so much

GM Tech (Cam) :

Is there any more I can get you?

Customer:

well just in case that's not the problem where would u go next?

GM Tech (Cam) :

Test fuel pressure and check wiring in the air filter box for the Powertrain Control Module

Customer:

ok ty so much are these expensive fixes?

GM Tech (Cam) :

Powertrain Control Module wiring is just a repair,

GM Tech (Cam) :

pump is about 500

GM Tech (Cam) :

connector is 200 or so.

Customer:

wow... ok that should be it ty so much.......

GM Tech (Cam) :

Please reply back if you need additional help or press ACCEPT If my answer was helpful. You can reopen it at any time by replying to it and I will answer ASAP. PLease keep in mind that as experts on this site, we are only compensated for our time spent helping customers once ACCEPT is selected. Be sure to bookmark this page (CTRL D) to reply with results or ask more if you need. Thanks again for using Just Answer. Cam.

GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 27667
Experience: GM Grand Master Technician 2007. 11 years experience.
GM Tech (Cam) and 3 other Chevy Specialists are ready to help you

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GM Tech (Cam)
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GM Grand Master Technician 2007. 11 years experience.