temp sensor on the block
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 2,238
Likes: 4
From: Milan
temp sensor on the block
yesterday I was checking if the TB bypass was leaking and I noticed that the sensor on the front of the engine (just under the intake manifold) has the electrical connector a bit loose 
I unplgged it and now I can see the two blades of the sensor...
I plugged in again but i noticed that the stock plastic wing that secure the connector to the sensor has NO a place to hook on the sensor. So it can be put on but not secured.
someone has a close pic of this sensor? Maybe I hve the wrong one installed?
There is also a sensor in the pas side heads . Is this also a water temp sensor? Why two? Which is the difference?
-Thanks-
I unplgged it and now I can see the two blades of the sensor...
I plugged in again but i noticed that the stock plastic wing that secure the connector to the sensor has NO a place to hook on the sensor. So it can be put on but not secured.
someone has a close pic of this sensor? Maybe I hve the wrong one installed?
There is also a sensor in the pas side heads . Is this also a water temp sensor? Why two? Which is the difference?
-Thanks-
Race Director
Joined: Jun 2004
Posts: 13,960
Likes: 707
From: WI
Is there a piece of plastic broken off? Perhaps a spot of glue would hold the connector on. This car is a 90? On my car there is also the cold start temp. sensor there. They have different pig tails.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by conv90
There is also a sensor in the pas side heads . Is this also a water temp sensor? Why two? Which is the difference?
-Thanks-
-Thanks-
RACE ON!!!
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
It's the Coolant Temp Sensor and since it's used for everything GM builds, doubt you have the wrong one. I'd replace it as the tang has broken off and if the harness falls off, the ECM is going to think it's -32 degrees and generate a Code 15. That won't strand you (the engine will run on backup) but with the throttlebody off, swap it out while it's easy to get to. Can't recommend gluing it - if it goes bad, you will also be splicing in a new harness and since the signal it sends depends on resistance - potentially adding another source of resistance to the circuit is never wise.
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 2,238
Likes: 4
From: Milan
Ok, I understand the problem...
the sensor should be like this:
and the connector like this:
my sensor has NOT the black plastic thing attached to..
-Beppe-
the sensor should be like this:
and the connector like this:
my sensor has NOT the black plastic thing attached to..
-Beppe-
Last edited by conv90; Jul 21, 2005 at 12:40 PM.
