Operating temp down aroun 155* at highway speeds
Thread Starter
TECH Senior Member
iTrader: (4)
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Operating temp down aroun 155* at highway speeds Looks like i may have a problem with my thermostat staying open. My operating temp goes down to around 155 on the highway. Anything I can do to rebuild the stocker since I hate to spend 50 bucks on a simple thermostat especially since id stay with the stock 187* stat anyway.
TECH Addict
Joined: Nov 2001
Posts: 2,003
Likes: 0
From: Live Oak, FL - in the woods where the creatures lurk.
I'm having the same prob. At 55* IAT (w/FRA) today my
ECT would not get above 172* while cruising @ 1600
rpms (about 65 or so?).
I don't believe my tranny temps went over 130*.
Even after driving 38 miles, cruising around town briefly
in stop & go, and cruising home my ECT via Autotap
never went over 182 (briefly) or thereabouts.
I do have a self-modified Tstat.
My trans cooler is still plumbed post-radiator
(I usually reverse this in winter).
I don't know what you can do to an "untampered with"
Tstat, but I'm going to pull mine back apart and remove
the shim I used to convert to a lower opening temp,
change the trans cooler plumbing until summer.
If your Tstat is sticking, take it off,pull it apart (carefully-
that's one hell of a spring in there), clean everything up
especially the orifice that the bottom of the Tstat rides in.
If there's any crud in there it could hold the stat open a
little all the time.
ECT would not get above 172* while cruising @ 1600
rpms (about 65 or so?).
I don't believe my tranny temps went over 130*.
Even after driving 38 miles, cruising around town briefly
in stop & go, and cruising home my ECT via Autotap
never went over 182 (briefly) or thereabouts.
I do have a self-modified Tstat.
My trans cooler is still plumbed post-radiator
(I usually reverse this in winter).
I don't know what you can do to an "untampered with"
Tstat, but I'm going to pull mine back apart and remove
the shim I used to convert to a lower opening temp,
change the trans cooler plumbing until summer.
If your Tstat is sticking, take it off,pull it apart (carefully-
that's one hell of a spring in there), clean everything up
especially the orifice that the bottom of the Tstat rides in.
If there's any crud in there it could hold the stat open a
little all the time.
Trending Topics
Thread Starter
TECH Senior Member
iTrader: (4)
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Originally Posted by SgtB
How about a $25 160* stat
http://www.jegs.com/webapp/wcs/store...1189&langId=-1
http://www.jegs.com/webapp/wcs/store...1189&langId=-1
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Joined: Nov 2001
Posts: 34,631
Likes: 2,557
From: Schiller Park, ILL Member: #317
Originally Posted by GuitsBoy
Bitchin! 25 bucks is more like it! Thanks for the find SgtB!
Thread Starter
TECH Senior Member
iTrader: (4)
Joined: Apr 2003
Posts: 6,249
Likes: 3
From: Long Island, NY
Originally Posted by RPM WS6
Woah....before you order that..... From what I understand the '04-up LS1 & LS2 use an updated water pump that also requires a different stat. I beleive this $25 piece is the newer stat. I don't think that will fit on an F-body LS1.
Well, I might as well try and see whats wrong with the one thats in there, maybe there is some crud jammed in there from when I pulled the heads a few weeks ago.