Its still on Overheating Problem - Pontiac GTO Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 16 (permalink) Old 07-13-2009, 04:49 PM Thread Starter
 
Join Date: Jan 2007
Posts: 58
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Its still on Overheating Problem

Im not Sure were to go, with this. Car seems to still get Hot. Must tell you guys that a have a new shrould and radiator now thermo is 180, but I'm putting an 160 in. Is it just because on this heat that its running 225- 235? I have an flex fan. I have checked my timing, its set at 6 deg. So I pretty much don't know where to go from here. If you can help that would be great. Im also using Waterwetter. Thanks Herb. P.s. sorry for any miss spelled words.
POOF is offline  
Sponsored Links
Advertisement
 
post #2 of 16 (permalink) Old 07-13-2009, 05:39 PM
 
jetstang's Avatar
 
Join Date: Nov 2008
Location: Niceville, FL
Posts: 3,376
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Garage
If it's hot at idle, but goes down when you are at speed, then your fan is inefective. If it's hot idle and moving, then it may be a clogged radiator, non-flowing water pump or other internal problems. 220 -230 isn't overheating, just hot, and already addressed in other threads.
jetstang is offline  
post #3 of 16 (permalink) Old 07-13-2009, 08:14 PM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,491
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
geeteeohguy is online now  
 
post #4 of 16 (permalink) Old 07-14-2009, 03:26 AM
 
Koppster's Avatar
 
Join Date: Jul 2008
Location: Garden Ridge TX
Posts: 689
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
You can do a flow check by disconnecting the upper radiator hose while cold, starting the motor and watching to see when water begins to flow. Thermostat should open at 180 and flow should be good. The results might tell you something about your water pump and the flow within the motor channels. If you have a new radiator, that's the next place I would look (motor/pump).

Most of the posts I have read, criticize the flex fans, you might want to consider a solid or the electric fans.

Koppster is offline  
post #5 of 16 (permalink) Old 07-14-2009, 08:17 AM
 
Join Date: Feb 2007
Posts: 46
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
try advancing the timing....6 degrees sounds low.....
judgeman6970 is offline  
post #6 of 16 (permalink) Old 07-19-2009, 04:50 PM
 
Join Date: Nov 2008
Posts: 155
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
yes a 160 thermostat will make a big difference. also put water wetter in at the same time. these changes may lower temp 20-30 degrees.
auburnconsulting is offline  
post #7 of 16 (permalink) Old 07-21-2009, 07:32 PM
 
Join Date: Oct 2007
Location: Long Island NY
Posts: 4,702
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Garage
loose the flex fan, check the fan blade to radiator clearance,make sure your water pump plates are in good shape, buy a GOOD radiator. Eric



Eric Animal is offline  
post #8 of 16 (permalink) Old 07-26-2009, 09:56 PM
 
jetstang's Avatar
 
Join Date: Nov 2008
Location: Niceville, FL
Posts: 3,376
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Garage
I agree with Eric, make sure the diverter plate is installed. Also, make sure you have a good quality water pump, it may be bad flow. Also, you can install an electric fan with a thermostat switch to turn on at a certain temp, 190-above the stat temp to keep amp draw low. Radiator may be clogged and need replacing.
Just keep at it and I'm sure you will find your demon.
jetstang is offline  
post #9 of 16 (permalink) Old 07-27-2009, 08:13 PM
 
Join Date: Aug 2008
Posts: 31
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
what is the best fan setup for the 1967 400? chronic hot runner
goat670 is offline  
post #10 of 16 (permalink) Old 07-30-2009, 10:07 PM
 
johnnylightning03's Avatar
 
Join Date: Nov 2007
Location: franklin nj
Posts: 136
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
are the belt(s) tight enough or glazed? flex fan may be causing water pump pulley to slip while at speed. i know its basic, just a thought though. good luck.
johnnylightning03 is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General 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
Weird problem with LCD after car didn't start CrazyGerman Service, Maintenance and Technical Discussion 1 03-29-2009 08:38 AM
Electronic throttle control problem Ole school muscle Service, Maintenance and Technical Discussion 3 01-18-2008 10:25 AM
Potentially serious GTO problem - everyone inside! Yankee Drive train, suspension, alignment and brakes. 67 04-22-2007 07:10 PM
one problem down one to go my1971gto4spd 1964-1974 Tempest, Lemans & GTO General Discussion 14 04-19-2006 10:25 AM
GTO Automatic Shift Problem smckullie Service, Maintenance and Technical Discussion 5 02-23-2005 06:02 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