Well i've posted about my idle problems before and i've come down to the conclusion that it's my temperature sensor unit on the block. Where is this located on an 1986 transam? i have the service manual but they don't really specify the location and I don't want to pull any sensor out without knowing for sure it is the right now. any help is appreciated. it should have 2 wire leads...

thanks

 

I'm not sure for your car but I'll give you the spot it is on my 89 camaro. It is located on the drivers side right after the #1 plug.
Hope it helps.

 

3 of them.

1) Sender for the ECM : Intake manifold next to the thermostat housing. (2 wire)

2) sender for the guage : Driver side cylinder head between #1 and #3 cylinders. (1 wire)

3) Sender for the electric fan (if so equipped) : Passenger side cylinder head between #6 and #8 cylinders. (1 wire)

Hope this helps.

------------------
ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R

GO #3

 

And of those 3 only the first is connected to your ECM...
Just curisou why you would think it was causing an idle problem. CTS tend to throw codes very quickly, and the data it provides is practically meaningless to the ECM. Therefore, unless it got stuck in some strange middle of the range position where it didn't **** off the ECM cuz it showed too warm on a cold start, or too cool to get into closed loop, it would throw a code.
...ed

 

I agree with Ed. The only other thing I was thinking is that perhaps the CTS was reading high or low causing the idle specs to be different than if the CTS was reading accurately? Just a thought. Either way, the sensor you're looking for is right next to the thermostat housing on the top/front of intake manifold.

 

Thanks for the help...the reason i think it's the CTS is because i've taken it to a couple shops around and asking them to check the sensors but i don't think they knew how to because all they do is to see if there were codes thrown. which i could have just done myself...

but anyways, i called TPIS and told them about my car and what've i've done with it. and the guy said that a lot of the time it's the CTS, even though it's not throwing a code. So i might as well try since it was only 15 bucks...