Main IndexAuto Repair Home Search Posts SEARCH
POSTS
Who's Online WHO'S
ONLINE
Log in LOG
IN









Search Auto Parts

2004 Grand Prix 3.8 L. No turbo charger overheating


  Email This Post



Pharrald1980
Novice

Dec 5, 2012, 2:58 PM

Post #1 of 9 (1289 views)
2004 Grand Prix 3.8 L. No turbo charger overheating Sign In

My grand prix is overheating during normal driving. Once the temp gets above the normal level, it keeps going up unless driving on highway where it stays out of the red. Now the interesting thing is that I am not leaking coolant, and my heat will start blowing cold air. But it will switch between blowing cold air, then blowing warm air. I can smell antifreeze, but it is not leaking. I have checked the hoses which seem fine, and do regular oil changes. Oil looks normal as well.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 5, 2012, 4:13 PM

Post #2 of 9 (1252 views)
Re: 2004 Grand Prix 3.8 L. No turbo charger overheating Sign In

Your coolant is definitely leaking. You just don't know where yet. You need to pressure test the cooling system until the leak is found. Pay close attention to the area around the belt tensioner ports and the intake manifold.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Pharrald1980
Novice

Dec 5, 2012, 7:22 PM

Post #3 of 9 (1240 views)
Re: 2004 Grand Prix 3.8 L. No turbo charger overheating Sign In

Thank you for your prompt reply, I really need some help here before it gets too cold outside (Michigan).

I haven't noticed the coolant level fluctuate at all; if it has it is very minimal. Anyhow, say there is a leak, is the problem here the compression? I was worried about head gasket, water pump, cooling fans, or heater core. Am I even in the right neighborhood? If it is only compression, what are the solutions?

Thanks in advance for any and all help. I know about cars a little; this is actually not my car, but my girlfriends so I am trying to figure it out for her. Wink


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 5, 2012, 7:26 PM

Post #4 of 9 (1234 views)
Re: 2004 Grand Prix 3.8 L. No turbo charger overheating Sign In

Did you even read the response/instructions I posted?



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Pharrald1980
Novice

Dec 5, 2012, 7:52 PM

Post #5 of 9 (1226 views)
Re: 2004 Grand Prix 3.8 L. No turbo charger overheating Sign In

Yes I did, I went out and checked for leaks, my fear is that it has had no/low coolant for so long that a leak would be hard to spot. It looked damp by the belt on the left of the engine (looking at the engine my left) so I added coolant, hoping to notice any leakage.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 5, 2012, 7:56 PM

Post #6 of 9 (1219 views)
Re: 2004 Grand Prix 3.8 L. No turbo charger overheating Sign In

The coolant is low. that is why you are losing heat. there are big air pockets in the system. You have to pressure test the system.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Sidom
Veteran / Moderator
Sidom profile image

Dec 5, 2012, 8:17 PM

Post #7 of 9 (1215 views)
Re: 2004 Grand Prix 3.8 L. No turbo charger overheating Sign In


In Reply To
on highway where it stays out of the red.

If this statement means that your are driving the car and letting it go into the red zone, if you don't already have a bad head gasket..........then you will be getting one very shortly .......................If you don't have the means to follows HTs advise to find the problem then you should take this into a shop as soon as you can.......Everytime you peg that gauge you run the risk of blowing a gasket.....


Pharrald1980
Novice

Dec 6, 2012, 1:25 AM

Post #8 of 9 (1200 views)
Re: 2004 Grand Prix 3.8 L. No turbo charger overheating Sign In

Okay, great. Thanks.


Pharrald1980
Novice

Dec 6, 2012, 1:26 AM

Post #9 of 9 (1200 views)
Re: 2004 Grand Prix 3.8 L. No turbo charger overheating Sign In

Its never made it into the red, generally it stays around 75% mark.






  Email This Post
 
 


Feed Button




Search for (options) Privacy Sitemap