GTO overheating issue - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 10-29-2012, 12:02 PM Thread Starter
 
Join Date: Oct 2012
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
GTO overheating issue

So I have a 2004 GTO with a Procharger in it. I just had to replace the head gasket last week because it was blown. I haven't had any issues since I've had it back, but I've noticed the past few days that sometimes if I'm driving it for more than 30 minutes and I drive in a lower gear like 1st or 2nd around a parking lot the temperature will start creeping back up. The head gasket was just replaced and a new thermometer was put in also. It does keep it at a lower temperature most of the time, but every once in awhile it will go up. And it will overheat if I run the AC too much also, but I was told that an easy fix for that would be to just put some more fans in. An idea what could be causing the overheating issue? Thanks!
etidball91 is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 10-29-2012, 10:50 PM
 
Join Date: Mar 2011
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
i have heard and read about the radiator having a crack between the plastic and aluminum. you have to replace the radiator mine has the same issue i just keep an eye on the fluid level every 1k miles.
machoponcho is offline  
post #3 of 8 (permalink) Old 10-30-2012, 09:55 PM
 
Join Date: Mar 2012
Posts: 43
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Did you burp the system?
ppxstnr is offline  
 
post #4 of 8 (permalink) Old 10-31-2012, 10:29 AM
Former Moderator
 
svede1212's Avatar
 
Join Date: Oct 2005
Location: Grand Rapids, Michigan
Posts: 4,081
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 25 Post(s)
Garage
Do you have the fans reprogrammed to come on lower? Does the fluid level change?

2004 Blk/Rd M6
6.3 litre LS1

Built and tuned by svede
svede1212 is offline  
post #5 of 8 (permalink) Old 10-31-2012, 05:57 PM
Super Moderator
 
6QTS11OZ's Avatar
 
Join Date: Mar 2005
Location: Where the women are scarce and the sheep are scared. So. Cali
Posts: 2,639
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
What is the range of the thermostat? You say it overheats when the ac is on. To what point? Just reads in a higher range or is it actually boiling over into the overflow reservoir? Was all the air bled from the system? This is a simple problem that some do overlook. Are you still using the old radiator cap? If so, replace it because if the spring is worn/weak or the rubber gasket is cracked/torn it will not allow the system to operate at the proper pressure, which I think is 15 psi (not sure), which will cause overheating as well. I'll just do the basics to see what's going on. Remove the radiator cap, let the car idle and wait for the level to drop when the t-stat opens. Top it off, put the cap back on and continue to let it idle. Then I will wait for the fan to come on. You should be able to gain a little knowledge of whats going on with these simple checks.

~I'm ya huckleberry~
~516rwhp/500rwtq~

http://www.youtube.com/watch?v=yC11NCGTEvI
6QTS11OZ is offline  
post #6 of 8 (permalink) Old 11-01-2012, 08:25 AM
 
jpalamar's Avatar
 
Join Date: Jul 2008
Location: Boyertown, PA
Posts: 3,765
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Why does the car overheat more with the AC on? Doens't turning the AC on active one of the cooling fans which would help cool the engine bay. I know when my rad cracked I turned my AC on just for the fan and milked my car home by stopping every 5-10 minutes to put gallon or water in it.

2003 Corvette Z06 - MGW shifter, Corsa X pipe, Corsa Xtreme exhaust, Texas Speed long tubes w/o cats, PowerStop rotors/pads, Conti DWS tires, C6Z51 F&R sways, C5R headlights, tuned

04 GTO - sold
jpalamar is offline  
post #7 of 8 (permalink) Old 11-01-2012, 01:35 PM
Super Moderator
 
6QTS11OZ's Avatar
 
Join Date: Mar 2005
Location: Where the women are scarce and the sheep are scared. So. Cali
Posts: 2,639
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by jpalamar View Post
Why does the car overheat more with the AC on? Doens't turning the AC on active one of the cooling fans which would help cool the engine bay. I know when my rad cracked I turned my AC on just for the fan and milked my car home by stopping every 5-10 minutes to put gallon or water in it.
That's true. One fan comes on when the a/c is turned on. I think it's switched on based on a/c system pressure. The other fan comes on at the stock predetermined value or whatever the tuner sets it at based on a lower temp t-stat.

~I'm ya huckleberry~
~516rwhp/500rwtq~

http://www.youtube.com/watch?v=yC11NCGTEvI
6QTS11OZ is offline  
post #8 of 8 (permalink) Old 11-04-2012, 07:42 AM
 
06BLACKGTO64's Avatar
 
Join Date: Oct 2010
Location: Columbus, OH-IO
Posts: 213
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via Yahoo to 06BLACKGTO64 Send a message via Skype™ to 06BLACKGTO64
I think the biggest question is how much does the temp raise? when your at a stop light or moving slow through a parking lot it is common for the engine to get a little hotter since there is no air rushing across the fins of the radiator. But obviously a little hotter and overheating are two different things. So How hot is it getting? a picture of the gauge in these conditions will help alot
06BLACKGTO64 is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 2004-2006 GTO > Service, Maintenance and Technical Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Gto overheating Weisberg16 Service, Maintenance and Technical Discussion 4 02-13-2011 12:29 PM
Overheating Issue oryfoxer7410 Service, Maintenance and Technical Discussion 14 01-23-2011 08:15 PM
Overheating StaleyCornell Service, Maintenance and Technical Discussion 5 03-12-2010 11:33 PM
Another overheating issue gtoarmuth Engine Discussions 7 02-03-2010 06:22 AM
Overheating Cottonfarmer Engine Discussions 15 08-10-2008 09:20 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome