Go Back   LS1TECH > CHASSIS, SUSPENSION, APPEARANCE > General Maintenance & Repairs
Sign in using an external account
Register Forgot Password?
Search

General Maintenance & Repairs
Leaks | Squeaks | Clunks | Rattles | Grinds
Sponsored by
Gearstar Performance Transmissions

Coolant Heating Up at low driving speeds

Reply
 
Thread Tools Search this Thread
Old 05-19-2012, 12:17 AM   #1
On The Tree
 
SlowBurn's Avatar
 
Trader Rating: 7
Join Date: Oct 2005
Location: Kailua, HI
Posts: 166
Default Coolant Heating Up at low driving speeds

Like the title says, a couple times now in the past day or so I noticed my coolant temp got all the way up to max while driving a low speeds (less than 30mph). The first time i was stuck in stand still traffic for about 20 minutes and I noticed it was over heating when my A/C started blowing hot air. I pulled over and let it cool off for about 15 minutes and tried again, it quickly got back up to 210 again. pulled over and let it cool while the traffic cleared up some. After it cleared up and I got going about 10 minutes later the temp gauge fluctuated a bit and then dropped back to about 180 QUICKLY. Today while driving slowly through the neighborhood I noticed it again (only got up to about 200 this time). When I pulled over and shut it off to cool, the electric fans were running so i don't think thats it. Ideas? I'm wondering if my thermostat is getting stuck closed...
__________________
02 Z-28 M6
ARC Audio/Image Dynamics Stereo
LS7 Clutch/Pro 5.0/Bilstein SLP Shocks/BMR Springs/BMR Panhard Rod/BMR LCAs/GMMG
SlowBurn is offline   Reply With Quote
Old 05-19-2012, 01:15 AM   #2
On The Tree
 
junior98's Avatar
 
Trader Rating: 2
Join Date: Aug 2011
Location: Amarillo, TX
Posts: 144
Default

If it was at 210 that is the normal operating temperature for an ls1 not running a cooler thermostat. If it shoot's above that I would just start troubleshooting by replacing the thermostat. Hope this helps!
__________________
"Junior" 1998 Trans Am-sold

SLP lid, Pacesetter LT's, custom x-pipe, P&P TB, LS6 intake
<a href=http://i1240.photobucket.com/albums/gg487/junior98ta/IMG_6629.jpg target=_blank>http://i1240.photobucket.com/albums/...a/IMG_6629.jpg</a>

2007 Cobalt SS Supercharged
Typhoon CAI, ZZP 3 inch downpipe
junior98 is offline   Reply With Quote
Old 05-19-2012, 09:50 AM   #3
On The Tree
 
SlowBurn's Avatar
 
Trader Rating: 7
Join Date: Oct 2005
Location: Kailua, HI
Posts: 166
Default

Quote:
Originally Posted by junior98 View Post
If it was at 210 that is the normal operating temperature for an ls1 not running a cooler thermostat. If it shoot's above that I would just start troubleshooting by replacing the thermostat. Hope this helps!
Thanks, I meant above 210 I got my numbers mixed up. Is there any particular one to go for ... SLP or Hypertech?
__________________
02 Z-28 M6
ARC Audio/Image Dynamics Stereo
LS7 Clutch/Pro 5.0/Bilstein SLP Shocks/BMR Springs/BMR Panhard Rod/BMR LCAs/GMMG
SlowBurn is offline   Reply With Quote
Old 05-19-2012, 01:59 PM   #4
TECH Senior Member
 
Trader Rating: 2
Join Date: May 2008
Location: South Florida
Posts: 9,442
Default

T-stat is sticking.....or.....possibly a failing coolant temp sensor.

When the temp needle goes way UP....you should pop the hood and put your hand on the intake. If you can keep it there, its not running hot. If you cannot keep it there without frying your skin.....its really getting hot.

.
__________________
1998 WS6 T/A, AES 390ci fully forged iron block, LS6 intake, LS1 heads, 239/235 .600/.600 114 lsa, 1 7/8" Grot LT's, 3" w/Magnaflow, 4L60E, Strange 12 bolt, Baer brakes, Hotchkis STB, UMI PH Bar, LCA's w/relocation brackets, SFC's, LG G2 Super Springs. Hals FR, Bilsteins RR, 275/315.

427ci stroker died at 173,000 miles...what a great engine that was, built by the late, great - Dave DiLuca...RIP...
-Life may not be the party we hoped for, but while we're here we might as well DANCE.
LS6427 is offline   Reply With Quote
Old 05-19-2012, 04:01 PM   #5
On The Tree
 
junior98's Avatar
 
Trader Rating: 2
Join Date: Aug 2011
Location: Amarillo, TX
Posts: 144
Default

Mine came from autozone. lol It's been on for more than 20,000 miles and everything still works fine
junior98 is offline   Reply With Quote
Old 05-19-2012, 05:34 PM   #6
On The Tree
 
SlowBurn's Avatar
 
Trader Rating: 7
Join Date: Oct 2005
Location: Kailua, HI
Posts: 166
Default

Thanks for the input everyone! Gonna sideline my Camaro until I can get a new t-stat in.
__________________
02 Z-28 M6
ARC Audio/Image Dynamics Stereo
LS7 Clutch/Pro 5.0/Bilstein SLP Shocks/BMR Springs/BMR Panhard Rod/BMR LCAs/GMMG
SlowBurn is offline   Reply With Quote
Old 05-20-2012, 07:07 PM   #7
Launching!
 
Trader Rating: 0
Join Date: Jan 2012
Location: CT
Posts: 204
Default

cooler t-stat ?
__________________
2002 Camaro z28 LSX
2001 Firebird street car
78 Camaro street strip sbc - sold
GMtechmatt is offline   Reply With Quote
Old 05-20-2012, 07:07 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply


Tags
01, 1998, ac, coolant, heating, heats, ls1, normal, operating, quick, run, signs, sticking, temp, temperature, thermostat, trans


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 Off
Pingbacks are On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 02:16 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details