I just changed my block out from an LS to a GSR and the coolant temp sensor is different. From what i can see instead of being 2 poles sticking out, it's the plug in the actual coolant output from the motor. I have the 2 wires with the plugs on them, but which wire goes to which plug for the temp sensor on the block?


Also, the coolant routing in general is different; rather than having 2 spouts on the warm water output there is only 1, leaving me with a spare hose from my heater core. Does anyone have a simple diagram for coolant routing?


Modified by rtnlsltn at 9:25 PM 5/10/2007

 

GSR's are so weird.....

 

thx for the help.

 

The coolant temp that you are talking about is your radiator fan switch. It was 2 prongs on the LS motor, but is not a 2 pin sensor on the GSR. It is located on the thermostat housing.

For the heater core lines, there is one the goes on the side of the head under the distributor. The other one is located on the water pipe near the knock sensor. The GSR motors had this goofy pipe that bolted on under the intake mani. You had a short piece of hose between the water pipe and the goofy pipe and then a short hose between the goofy pipe and the heater core.

 

from what i can feel within the plug (since i cant see into it) it has 2 prongs...would you have any recommendations on how to wire it up?

 

You probably want to use the GSR half of the thermostat housing and then keep the other half which you originally had on the car. This should sort the piping issues.

 

yeah that diagram helped a lot! Now i need to figure out how to wire the coolant temp sensor, this has to have been done before, so someone must know

 

you gotta cut the two wires that plug to the back of the block and extend them and your going to use a plug similar to the one that plugs to the IAC sensor