Oil temp sky rocketing????
Thread Starter
Burning Brakes
Joined: Sep 2003
Posts: 1,106
Likes: 0
From: Norwich NY
Oil temp sky rocketing????
My friend installed a new factory LS6 shortblock in his car.(did do a cam swap) For the first month, all was great in the world!!! Yesterday, after a wonderful 100 mile drive in which the car performed flawlessly, the oil temp went out of sight. It reached over 280.......( Not the gauge or sender because the oil pressure dropped at the same time) He let it cool down and drove it home. The temp went back up on the ride home.
Both water and tranny temps were fine..
Any ideas w/b much appreciated..
Thanks guys...
Both water and tranny temps were fine..
Any ideas w/b much appreciated..
Thanks guys...
Le Mans Master
Joined: Jan 2007
Posts: 7,364
Likes: 6
From: Rocky Mount Virginia
My friend installed a new factory LS6 shortblock in his car.(did do a cam swap) For the first month, all was great in the world!!! Yesterday, after a wonderful 100 mile drive in which the car performed flawlessly, the oil temp went out of sight. It reached over 280.......( Not the gauge or sender because the oil pressure dropped at the same time) He let it cool down and drove it home. The temp went back up on the ride home.
Both water and tranny temps were fine..
Any ideas w/b much appreciated..
Thanks guys...
Both water and tranny temps were fine..
Any ideas w/b much appreciated..
Thanks guys...
Racer
Joined: Apr 2009
Posts: 359
Likes: 25
From: San Antonio TX
hows the pressure? any noise coming from the bottom end that you can tell? If you spin a bearing it will cause a lot of friction, and the oil temp would probably go up that high... but hopefully thats not it.
Thread Starter
Burning Brakes
Joined: Sep 2003
Posts: 1,106
Likes: 0
From: Norwich NY
Pressure dropped to 18 I think he said. Once oil temp dropped to "normal" pressre goes back to normal.
He used the new oil pump that came with the crate motor.
Motor is quite as ne once temp goes down..
He used the new oil pump that came with the crate motor.
Motor is quite as ne once temp goes down..
Le Mans Master
Joined: Jan 2007
Posts: 7,364
Likes: 6
From: Rocky Mount Virginia
Could be a clogged pick-up screen on the pump. I would drop the pan and see if there is blockage.
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Thread Starter
Burning Brakes
Joined: Sep 2003
Posts: 1,106
Likes: 0
From: Norwich NY
I know a bad bearing will reek havoke with temp.. Runs perfect when cooled down though...
No freakin idea.. Makes no sense!!
Le Mans Master
Joined: Jan 2007
Posts: 7,364
Likes: 6
From: Rocky Mount Virginia
Drifting
Joined: Dec 2002
Posts: 1,474
Likes: 4
From: Tracy CA
The only time I've seen oil temps skyrocket when normally driving the car is when a bearing goes out. Happened on a 350 in an old truck of mine. The rod bearing was letting go and the oil temps went really high.
Other than that - I'm guessing the sending unit.
Do you have some way of verifying the temp? IR laser thermometer? In a pinch you could spray water on the bottom after it's hot and see if it boils.
Other than that - I'm guessing the sending unit.
Do you have some way of verifying the temp? IR laser thermometer? In a pinch you could spray water on the bottom after it's hot and see if it boils.
Melting Slicks
Joined: Mar 2004
Posts: 2,411
Likes: 412
From: Horseshoe Bend ID
Oil Temp
My friend installed a new factory LS6 shortblock in his car.(did do a cam swap) For the first month, all was great in the world!!! Yesterday, after a wonderful 100 mile drive in which the car performed flawlessly, the oil temp went out of sight. It reached over 280.......( Not the gauge or sender because the oil pressure dropped at the same time) He let it cool down and drove it home. The temp went back up on the ride home.
Both water and tranny temps were fine..
Any ideas w/b much appreciated..
Thanks guys...
Both water and tranny temps were fine..
Any ideas w/b much appreciated..
Thanks guys...
Drifting
Joined: Jan 2008
Posts: 1,722
Likes: 138
From: Florida
St. Jude Donor '09
My friend installed a new factory LS6 shortblock in his car.(did do a cam swap) For the first month, all was great in the world!!! Yesterday, after a wonderful 100 mile drive in which the car performed flawlessly, the oil temp went out of sight. It reached over 280.......( Not the gauge or sender because the oil pressure dropped at the same time) He let it cool down and drove it home. The temp went back up on the ride home.
Both water and tranny temps were fine..
Any ideas w/b much appreciated..
Thanks guys...
Both water and tranny temps were fine..
Any ideas w/b much appreciated..
Thanks guys...
Does not sound like a wiped bearing since you are reporting that oil pressure comes back to normal once the temperature drops back down.
I would focus the components that were removed and replaced for the cam swap.
Last edited by ipuig; Apr 4, 2010 at 02:10 PM.
6th Gear
Joined: Apr 2010
Posts: 6
Likes: 0
Help! I'm an issue with oil temperature, too! I'm getting a reduce engine rpm and a high oil temperature warning...two seconds later, I get a low oil temperature warning. Changed out the oil temperature sensor with one off another motor of the same year, (it's a 1999 C5) but it's not correcting the problem. Car seems to fall on it's face with a limp mode after driving it around town for 30 minutes. Sometimes, I can shut it down and crank it back up with success. Other times, it acts up all the way home. Cleared all of the codes and the only one that keeps coming up is B1543 oil temp circuit open... any suggests? So much for our Easter Sunday ride in beautiful Florida.
Thread Starter
Burning Brakes
Joined: Sep 2003
Posts: 1,106
Likes: 0
From: Norwich NY
