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I have a 02 Pontiac Grand Prix... I've been having

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  • Cars & Trucks Master
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Lean motors run hot so check for air leaks including brake booster hose. check ignition timing for too far advanced . Check that the thermostat has the correct opening temp setting or is even the correct type for the vehicle. check that the bottom radiator hose dosen\'t suck in on revs restricting the water flow.It it\'s an auto check that the gears are operating correctly especially if there is an o/drive facility.Replace the lead giving you pain

Posted on Jan 09, 2013

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6ya6ya
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Posted on Jan 02, 2017

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  • 31 Answers

SOURCE: my 04 grand prix keeps

Do the fans go on? Is the thermostat in the right direction?

Posted on Jan 20, 2011

luv2tango
  • 36 Answers

SOURCE: 1995 Pontiac Grand Prix GTP 3.4 L

There could be several reasons that may cause an engine to overheat. It sounds like you have covered the most important ones. Thermostat,radiator and water pump. Hopefully you do not have internal damage, cracked head, head gasket, or a cracked block. I would try flushing the heater core and pay close attention to what comes out. You know, is it clogged with stop leak or rust. Then while I was flushing that I would drain the entire system and put in some Prestone super radiator flush. You just add plain water with it and run your vehicle for about 10 minutes. You then empty your cooliant system and refill with antifreeze. The flush works pretty well and if there is an obstruction from a previous owner putting stop leak in the system it generally will clean it out.
BTW, are you sure the thermostat is in properly? Not upside down? I think I would start there before I went through all of the work of flushing the system. It actually sounds like from everything you've done already, that's possible. Hey it does happen once in awhile. Was this car overheating when you bought it? If so, maybe the previous owner put it in upside down, and when you changed it put it in the same way by accident.
Hope this helps.

Posted on Mar 10, 2009

  • 1 Answer

SOURCE: 2002 pontiac grand prix over heating

Are your electric fans engaging or turning on?

Posted on Dec 26, 2008

davidg65
  • 26 Answers

SOURCE: 2002 Pontiac Grand Prix Thermostat

as you face the engine the thermostat bell is on the right (drivers side) Follow the radiatoe hose. Remove the two bolts and raise the bell still attatched to the hose. the thermostat is there with the rubber seal. You can gently pry the thermostat out with a screwdriver or something similar. Put in new thermostat be sure it is the same as the old one, and then replace or change the seal (be sure it is the smae size and thickness as the old one as I got the wrong size from Napa) Then replace the bell, and tighten, but not over tighten. I hope this helps!

Posted on Jan 31, 2009

beduncan
  • 73 Answers

SOURCE: 2004 Pontiac Grand Prix OVERHEATING!!!

Have you shop perform a "leakdown test." You probably have a bad head gasket )or a leak in the gasket).

Posted on Aug 06, 2009

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2 Answers

I have a 2005 Pontiac Grand Prix that is running hot. I have changed the water pump and the thermostat. Checked all hoses and they are good(no leaks) yet I'm still running hot. What's the next


find the bleed valve on coolant system and burp it. make sure you are using a good 50/50 mix of coolant.
maybe run a coolant system cleaner . maybe a clog?
if worst come to worst blow head gasket

Apr 13, 2013 | 2005 Pontiac Grand Prix

1 Answer

98 Pontiac Grand Prix GT 3.8 won't after engine warms up


crank pos. sensor or maf sensor ck. the fuel press reg. also

Jun 06, 2012 | 1998 Pontiac Grand Prix

1 Answer

Variable effort steering service light came on how do i sevice it


In this case,the problem can be faulty steering sensor or issue with steering pump.Also the possibility is faulty steering rack and pinion gear.In some cases the problem noticed was faulty fuse.
To confirm what exactly is causing this problem.I recommend you to click the help link below and troubleshoot the problem :-----steering service light came on 2004 Pontiac Grand Prix?http://technoanswers.blogspot.in/2012/02/on-one-my-pontiac-grand-prix-relatred.html
-----------Steering service light ON ? http://technoanswers.blogspot.in/2012/02/steering-service-light-on-gmc-sierra.html
--------This links will help.Thanks.

Feb 15, 2012 | 2004 Pontiac Grand Prix

1 Answer

Wy do car run but sometimes hard 2 start?


Check out this both links shown below.Click the link and follow the troubleshooting to confirm,the problem.The car hard to start is basically the fuel pump issue:-----Car running hot? http://technoanswers.blogspot.in/2012/02/car-running-hot.html

---------
Car starting issues? http://technoanswers.blogspot.in/2012/02/car-starting-issues.html
-----This will help.Thanks.

Feb 11, 2012 | 1999 Pontiac Grand Prix

1 Answer

I have a 2004 pontiac grand prix with white smoke coming from underneath the hood and tailpipe.


Sounds like you've got a coolant leak. Check the condition of your radiator cap (look for deteriorated rubber, etc). You'll probably also need to top your coolant system off as well. It would help you if you pop the hood before starting the car, start the car and then watch the engine compartment so you can identify where the white smoke is coming from so you'll know what needs repair. No need to be a master mechanic to open a hood and watch an engine for 10-15 minutes...
Also as a last resort if you're having overheating issues but need to drive in an emergency you can turn your heater on full-blast... the heater can act as a supplemental radiator (useful for when the engine fan fails), just turn it to max hot and max fan and roll the windows down as necessary. Turning off the AC and extra electrical accessories helps as well because it puts less strain on the engine accessories, which put additional strain on the motor as it tries to provide power to everything.

Nov 19, 2011 | 2004 Pontiac Grand Prix

1 Answer

Where in the onstar module in a 2004 pontiac grand prix?


On this website (link below) you find fuse box diagram and description for Pontiac Grand Prix 2004


Pontiac Grand Prix mk7 Seventh Generation 2004 fuse box diagram Auto Genius

Nov 16, 2011 | Cars & Trucks

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