Question about Chevrolet G20

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G20 truck, Stalls when put in drive

New coil,plugs,leads,map sensor,temp sensor,air idle control module,distributor module,cap,rotor,TBI rebuilt kit,new vacuum pipes,new inlet manifold gasket fitted,fuel pump pressure tested.

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  • Chevrolet Master
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If it stalls in drive but not reverse, it could be a transmission problem.
Is the check engine light on ?

Posted on Dec 02, 2014

Testimonial: "Hi, Its not a transmission problem as it stalls in all gears and the ECM is clear with no fault codes. Thanks,Derek."

  •  Stephen
    Stephen Dec 18, 2014

    One possible transmission problem could be the torque converter. In years past, GM had a major problem with a sticking lockup torque converter solenoid. The transmission acted like a manual shift with the clutch engaged. Can you tell if it acts like you are turning the key off, or more like you popped the clutch on a stick shift model ?

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6ya6ya
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Posted on Jan 02, 2017

csmock132
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SOURCE: 1989 GMC 2500 5.7L - engine surges and stalls at idle. Loses power at cruising speed.

Wow you have replaced a lot of stuff. Lets go back to the Fuel pump. When you replaced it did you replace the hose between the pump and the sending unit. These are common for splitting. Have you hooked up a fuel pressure gauge to check what pressure you have? It should be real close to 13 psi and should raise to at least 18 or 19 when you pinch off the return line.

Posted on Jun 02, 2009

csmock132
  • 4669 Answers

SOURCE: 87 chevy truck with TBI idles too fast

Spray the intake with carb cleaner to find the vacuum leak. Check where the EGR mounts and the throttle body gasket sense you had both off.

Posted on May 10, 2009

  • 1 Answer

SOURCE: car stalling renault espace 2.0 1994

I had the same problem. There are two water temparature sensors located on the housing where the top hose conects to the head. the top sensor is for the temp guage on the dash and the one below is the sensor that needs replacing.

Posted on Jul 16, 2008

suterman
  • 158 Answers

SOURCE: truck stalls when I give it gas

It sounds like they have got the distributor out of time. You will need to adjust the distributor. That is what it sounds like.

Posted on Jul 03, 2009

dttech
  • 4803 Answers

SOURCE: I have a 93 mercury topaz 4cyl 2.3L that stalls

It sounds to me like you replaced everything but the most likely cause of a stall while driving...The crank sensor.

Posted on Oct 11, 2009

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Hello I have a 89 gmc k2500 extra cab long bed with the tbi Ok so I started having stalling problems when the truck would warm up now its from the get go when it's idling its real rough and when I push...


nevr evr replace parts til u know the issue--its either the egr valve or the idle control motor----resistence in electric components from old age cause heat and stop car til they cool--such as injector drivers in the computer-----have a data stream run-it gives values and voltages topinpoint and area--code readers only give a general view

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High idle


It's probably one of two things , a vacum leak or a bad ground.

Dec 23, 2012 | 1989 Chevrolet C2500

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I have a 1988 k1500 seirra truck, that will idle fine then it will chock its self out and stall out.(i have a new egr synolyd,new egr, a 1992 ecm pulled from a junk yard,new cap,rotor, plugs...


Are you a TBI?(throttle body injector) if you are take the top of the air cleaner out step on the gas pedal(do this in park hood open fire extinguisher on the ready.) does it backfire through the air cleaner if it does you are in need of a whole distributor unit the distributor unit has a relector that has a high tendency for failure by the way the vehicle sound there is only 2 possible problems you coil is faulty and this includes the connection to the coil which has a tendency to seperateor the connection to the ICM.(ignition control module where the coil is) or the whole distributor reluctor

Aug 01, 2011 | 1989 GMC K1500

1 Answer

Shakes while idling and sometimes stalls.


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