Coolant temp sensor - LT1

Reply Subscribe

Thread Tools

Search this Thread

Apr 13, 2011 | 04:55 PM

9T3VETTE

Thread Starter

Drifting

Joined: May 2007

Posts: 1,426

Likes: 165

From: Motor City

Coolant temp sensor - LT1

Can the sensor be removed without draining the coolant?

It was suggested by someone to remove the radiator cap and squeeze the top radiator hose, then replace the cap. Basically create a small vacuum so when the sensor is pulled and replaced quickly no coolant will spill.

is this true? thanks in advance

Apr 13, 2011 | 05:17 PM

RichS

Le Mans Master

Joined: Aug 1999

Posts: 7,339

Likes: 137

From: WilkesBarre PA

If the car is absolutely cooled off and there is no pressure in the system, leave the cap on and quickly reinsert the new sensor once you remove the old one. You should only loose a little coolant depending how fast you are.

Apr 14, 2011 | 11:36 AM

9T3VETTE

Thread Starter

Drifting

Joined: May 2007

Posts: 1,426

Likes: 165

From: Motor City

Thanks for the info Rich

Apr 14, 2011 | 12:03 PM

Nathan Plemons

Race Director

Joined: May 2001

Posts: 14,165

Likes: 9

Also be sure you're replacing the right sensor. The sensor that drives the ECM and the digital gauge is in on the water pump housing. The sensor that drives the analog gauge is in the cylinder head.

Apr 14, 2011 | 12:27 PM

9T3VETTE

Thread Starter

Drifting

Joined: May 2007

Posts: 1,426

Likes: 165

From: Motor City

Quote:

Originally Posted by Nathan Plemons

Also be sure you're replacing the right sensor. The sensor that drives the ECM and the digital gauge is in on the water pump housing. The sensor that drives the analog gauge is in the cylinder head.

Whoa, didn't know that. Is there a way to tell visually? I picked up a sensor from the auto parts store and specifically told the guy it was in the passenger cylinder head. He claimed that this was the correct one. Hoping so.

Apr 15, 2011 | 02:23 PM

C4fan

Melting Slicks

Joined: Feb 2009

Posts: 2,072

Likes: 1

From: Oklahoma City OK

St. Jude '10

Quote:

Originally Posted by dubin4life

I'm pretty sure they have different plugs. Check the fit first. On the link the first pic is the one between 6 & 8. And the lower pic is of the one on the water pump.

http://forums.corvetteforum.com/c4-t...r-the-lt1.html

Name: IMG_1502-1.jpg
Views: 11237
Size: 88.5 KB