Question about 1994 Chevrolet C1500

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My 94 chevy pick up starts and files good but cuts out bad when put in gear and give gas

I have replaced untrue throttle body including 2censors on it,map censor,02censor,top temperature censor,and coil from another running 94,New plugs,wires,cap,router,can you please help

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  • Daniel O' Connor Jan 19, 2013

    thank you for your answer thus far I have excluded the gas filter or pump because it starts and files so well .I just bought this truck right before Xmas it just seemed cold natured then because it ran well when warm it seemed and now it appears with every new part ok put on the problem gets worse I will check the fuel filter and pressure as well as pump any other suggestions are appreciated thanx

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  • 274 Answers

Could be clogged fuel injectors or fuel filter could be plugged or your fuel pump is weak and needing replaced,what makes fuel pumps go bad in most vehichles is driving with less than a 1/4 tank of gas,it gets the fuel pump hot and works it too hard

Posted on Jan 19, 2013

  • Daniel O' Connor Jan 19, 2013

    thanx for everybody's help I ran a scan on my truck a few days ago I'll will retrieve the codes and post them.at that time only code that appeared was temp control I replaced then no codes appeared will give it another shot

  • Daniel O' Connor Jan 19, 2013

    I've herd of a censor on the underside of the distributer cap if so what is it also in a dodge pick up I owned similar prob it ended up being pickup coil inside is that a possibility or completely different set up?

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SOURCE: 93 chevy 5.7Flooding,running rich

i want you to get OBD trouble codes from your computer. then post them on here. im sure it will hold clues to what the problem is...Various auto part stores will do this service for free in hopes you will buy parts from them...but call them first and make sure. parts to look at Idle Air Control (IAC) Valve...it acts like a choke with modern engines. also the Coolant temp sensor is associated with this as well. Second is the Mass Air Flow (MAF) Sensor. and last one is your Manifold Absolute Pressure (MAP) Sensor . lastly it could be the Throttle position sensor (TPS).. all these can be detected on your computer within the car. although the the numbered codes will be labeled with abreviations like MAP Sensor or IAC valve. also you can manually test all these sensors at home with a regular voltage tester and reading some online info...just search " How to test a MAP sensor" almost all sensors have very similar readings from car to car, so its pretty generic. hope this helps

Posted on Mar 13, 2009

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SOURCE: 1997 Chevy Tahoe will crank but will not start.

check the fuse for the injetor. if is bad

Posted on Apr 17, 2009

gh20s
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SOURCE: will not idle,starts up OK,runs

Check all the vacuum hoses for breaks or loose onnections.

Posted on Jun 03, 2010

  • 192 Answers

SOURCE: 1994 chevy with 5.7 L

Sounds like you have a vacuum leak. When the engine is cold the leak is there but as the engine warms up the parts start to expand thus closing the gaps and sealing the leak. I had this problem on my personal vehicle and it turned out to be lower intake gaskets.

Posted on Jan 29, 2011

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