Question about 2002 Pontiac Grand Prix

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2001 grand prix shuttin off, randomly

I had a mechanic take a look and he said it was the PCM so we got it replaced. Still have the same problem so we unhooked the Mass Airflow Sensor and it runs fine.

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  • 158 Answers

It sounds like the crankshaft position sensor has gone bad or either the wires to it.The sensor is located to the side of the harmonic balancer. I would suggest that you would take to an experienced mechanic to replace as the sensor has to be indexed to the balancer(set in a certain place).

Posted on Jul 02, 2009

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Posted on Jan 02, 2017

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2001 pontiac grand prix gt lost the key does it have a chip what do I do


Yes it does have a chip, and yes you'll be buying the expensive key or bypassing the system. http://www.diy-gm-security.com/
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Oct 07, 2016 | 2001 Pontiac Grand Prix

1 Answer

98 grand prix stalls randomly. Sometimes when taking off, sometimes when slowing down. What could be the problem?


The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM or ECM,ECU), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems. Also engine mechanical problems can and do cause many drive-ability related problem such as rough idle and other symptoms.

Dec 06, 2012 | 1998 Pontiac Grand Prix

1 Answer

My left rear window goes down, but not up. 2001 grand prix gtp.


That is usually an indication of either the motor has lost it strength and needs replaced or that something is binding the mechanism up.

Jul 13, 2011 | 2001 Pontiac Grand Prix

1 Answer

92 pontiac grand prix run 4 10-15 min then stop wiat 4 then start agian


Possible PCM (computer) , Crank engine, wiggle wires@PCM under dash behind glovebox.
Tap on PCM with screwdriver while running . If engine stutters or quits,Replace PCM.

Jan 27, 2011 | 2005 Pontiac Grand Prix

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Pontiac 2001 tcc replacement


i have an 2002 grand prix gt with a bad tcc silinode sensor dont knoow where its located at...anyone that can tell me would be great

Mar 23, 2010 | 2001 Pontiac Grand Prix

2 Answers

How much to change a oil pan gasket for 2001 grand prix 3.8 gt


If you want to repair the oil pan I would also check lower engine mount for leaking oil and cracks in anti sway bar near fitting's. This due to engine mount is oil filled. OEM sway bar is made of tubular steel and they crack easy. Replacement sway bar is solid steel. Here's the kicker. When they pull the lower frame to service oil pan. The engine mount and sway bar are attached to that frame. A honest mechanic should only charge for parts ($35 for mount and $100 for sway bar) and maybe a extra hour. My mechanic did all in 5 hours. FYI gasket is only $35 bucks. Good luck

Feb 26, 2010 | 2001 Pontiac Grand Prix

1 Answer

99 pontiac grand prix 3.8 l.No battery power to pcm


Pin 20 on the blue pcm connector is the power wire to the pcm it is an orange wire. (hot at all times). The power to the data link connection is the cig fuse in the i/p fuse box.

What is the exact problem you are having?

Aug 02, 2009 | 1999 Pontiac Grand Prix

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