Question about 1993 GMC Sierra

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Hesitation throttle body, which was thoroughly cleaned!

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When was the last time you changed the fuel filter? did you check to look if any vaccum lines are off, especially the one going to your manifold pressure sensor.? on your model do you maf sensor(mass air flow)?

Posted on Sep 02, 2008

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2 Answers

Car engine hesitates after coming to a stop. Seems ok after coming up to speed?


Clean the throttle body inside, especially around where the throttle plate sets. I use brake clean and a tooth brush.

Aug 02, 2015 | Cars & Trucks

1 Answer

Low ideal when defrost is on


Throttle body needs to be cleaned, common problem. Make sure both front and rear sides are cleaned thoroughly. And disconnect battery while cleaning to reset computer so it can relearn with freshly cleaned throttle body.

Mar 04, 2014 | 2003 GMC Envoy

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What is a p1680 mean on a 04 Envoy? there is alos some hesitation while ideling at a stop light and when u have the heater on high


Code P1680 refers to the accelerator pedal sensor, there may be a bad connection or the sensor itself is dirty and needs replacement.
The hesitation could be cause by a dirty throttle body, needs to be cleaned thoroughly front and back.

Jan 16, 2013 | 2004 GMC Envoy

1 Answer

My 1996 jeep cherokee sport keeps hesitating and if i let up on the gas it just dies i have replaced the iac any sugestions?


did you clean out the throttle body? a dirty throttle body can cause hesitation and stalling at idle at times.

Jan 27, 2012 | 1996 Jeep Grand Cherokee

1 Answer

Throttle sticks at times ?


You probably need to clean your throttle body.

The best way to do this is to remove the throttle body from the engine so the back side of the throttle plate can be thoroughly cleaned with throttle body cleaner and a nylon brush.

CAUTION: DO NOT use a wire brush on throttle body components. DO NOT use any solvent containing methyl ethyl keytone. This type of solvent can cause severe damage to sealed bearings and other parts of the throttle body. DO keep the throttle body cleaner away from the throttle position sensor (TPS) and the idle air control (IAC) as much as possible or remove these items from the throttle body before cleaning.

Dec 16, 2011 | 2003 Buick Park Avenue

1 Answer

04 gmc envoy randomly turns off when coming to a stop


You need to have the throttle body cleaned, make sure both the front and rear sides of the throttle body are thoroughly cleaned. Also, while the cleaning takes place, the battery should be disconnected to reset the computer and allow it to relearn to the cleaned throttle body.

Nov 04, 2011 | 2004 GMC Envoy

1 Answer

When I turn on the A/C the idle starts going up and down and if I'm not giving the engine power it will cut off?


The throttle body needs to be cleaned. Make sure both front side and back side are cleaned thoroughly, this means removing the throttle body from the intake. Also, disconnect the battery while cleaning, this will reset the computer and allow it to relearn to the cleaned throttle body.

Oct 09, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

The oil pressure has begun to falter sometimes while idling, even causing the car to stop briefly.


The idle RPMs are probably too low because of a dirty throttle body, clean the front and rear sides of the throttle body thoroughly. Also, disconnect the battery while doing the cleaning, this will reset the computer and allow it to relearn to the newly cleaned throttle body.

Sep 07, 2011 | 2002 Chevrolet TrailBlazer

2 Answers

Hesitation


is it a throttle body or fuel injected?

Sep 02, 2008 | 1993 GMC Sierra

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