Overheating 92 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat
GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

Go Back   GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat > Pontiac Bonneville > 1992-1999

1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

LinkBack Thread Tools Search this Thread
Old 06-03-2004, 10:58 PM   #1
Junior Member
Join Date: Jun 2004
Location: Yutan, NE
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
jrl92bonny is on a distinguished road
Default Overheating 92

I'm a newbie with a problem.
My 92 Bonny has >200k miles and a SC 3800. It has a new 195 t-stat, new radiator with oil cooler and tranny fluid cooler, new water pump, new hoses, 50-50 antifreeze (green). When on the road the temp gauge indicates about 195 (slightly below the middle 200 mark) and stays there. If I get into slow moving traffic the engine heats up right away and the gauge moves to the next temp mark (240?). If I turn the heater on full (90 degrees) the temp gauge will come right down and stay right at 190 even in stopped traffic. While I can't check the fans while driving, when in the driveway and idling the fan cycles on and off but the temp gauge stays above the 200 mark. The other fan runs if I turn on the air conditioner.
Well meaning associates are giving me all kinds of suggestions. I like the car and would like to fix the problem.
Any ideas? If I need to clarify anything, please let me know. Thanks.
jrl92bonny is offline   Reply With Quote
Old 06-04-2004, 12:11 AM   #2
Junior Member
Posts like a Ricer Type-R
Join Date: Aug 2002
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road

John, your car isn't out of the ordinary. They run hot. You might be a LITTLE on the warm side, but not by much.

I don't like it either, so I did several things. Added another trans cooler, installed a high-speed fan override switch, installed a 180 thermostat, and ducted half my ram air to cool the supercharger.

I rarely break 200 on hot days now.

One contributor that may be an issue is your catalytic converter. If it'* old, and starting to clog, it can contribute to high temperatures. You may want to knock on it and see if you hear any rattles. If you do, change it.
willwren is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Where are ya Jim? Aurora overheating....HELP xtreme Bonneville GXP/ Northstar Powered Cars 16 04-06-2004 12:39 AM
Overheating...Da hell???? TrueWildMan 1992-1999 23 02-13-2004 05:26 PM
overheating realjwann General GM Chat 4 06-18-2003 10:11 PM
WOO HOO no more overheating! SSEimatt93 General GM Chat 7 05-29-2003 11:19 AM
Winter slush causing overheating willwren General GM Chat 22 01-05-2003 11:06 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 10:43 AM.