-
Grand Future Air Dried Beef Dog Food
Air Dried Dog Food | Real Beef

Carnivore Diet for Dogs

Go Back   Automotive Forums Car Chat > Pontiac > Grand Prix
Register FAQ Community
Reply Show Printable Version Show Printable Version | Subscription Subscribe to this Thread
 
Thread Tools
  #1  
Old 11-12-2008, 03:08 PM
Elitemduane12 Elitemduane12 is offline
AF Newbie
 
Join Date: Nov 2008
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
Heater Issue 00" Grand Prix

I have a 2000 Grand Prix SE. Recently I noticed that my heat only gets hot when I’m accelerating or going near or over 30 mph. When I decelerate the heat cools. Not exactly sure what causes this. Also my check engine light just came on for O2 Sensor, but I don’t believe that would have any affects on the heat issue.
Reply With Quote
  #2  
Old 11-12-2008, 10:17 PM
mieth mieth is offline
AF Newbie
 
Join Date: Apr 2004
Posts: 63
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Heater Issue 00" Grand Prix

I just went thru a similiar issue: See http://www.automotiveforums.com/vbul...d.php?t=927465

Long story short, I would flush and back flush your heater core. I would guess that the higher engine RPMs are turning the water pump faster and then the coolant circulates well enough to allow more heat. I went through a lot of trials and tribulations. But flushing that heater core is probably your best bet.

Good luck
Reply With Quote
  #3  
Old 11-13-2008, 01:52 AM
grandprixgtx00's Avatar
grandprixgtx00 grandprixgtx00 is offline
AF Enthusiast
 
Join Date: Feb 2008
Posts: 989
Thanks: 0
Thanked 2 Times in 2 Posts
Send a message via AIM to grandprixgtx00
Re: Heater Issue 00" Grand Prix

in your SE do you have the 3800, or the 3100? first things first...check your coolant level and for any air in the system...if not, sounds like a possible headgasket.
__________________


Reply With Quote
  #4  
Old 11-13-2008, 08:30 AM
BNaylor's Avatar
BNaylor BNaylor is offline
AF Moderator
 
Join Date: Jan 2005
Posts: 18,017
Thanks: 30
Thanked 54 Times in 42 Posts
Re: Heater Issue 00" Grand Prix

The 2000 and up SE model should have the 3100 V6.

Do you still have the original lower intake manifold (LIM) gaskets?



__________________

'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold)
Timeslip 08/12/06

AF Community Guidelines
Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums Car Chat > Pontiac > Grand Prix


Posting Rules
You may not post new threads
You may not 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



All times are GMT -5. The time now is 10:54 PM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts