irishhockey34

iTrader: (12)

Does anyone know what sensor goes into the passenger side cyl head towards the rear of the engine? Had my heads redone and they came back with no sensors and I don't know what to tell the parts guy at the store.

sofakingdom

iTrader: (1)

Fan switch

Tuned Performance

iTrader: (92)

acdelco 15-4373 gm#10045782

irishhockey34

iTrader: (12)

Are there 2 fan switches then? I already have one on the front of my intake maniold.

Tuned Performance

iTrader: (92)

That is the ect sensor for engine coolant temp feedback to the ECM.

irishhockey34

iTrader: (12)

Im pretty sure that sensor is in the front of my manifold as well. The connector that goes into the sensor im missing looks just like the knock sensor connector that goes into the bottom of the block below it.

Tuned Performance

iTrader: (92)

The cts looks different and is a 2 wire thermistor acdelco 213-928 gm#15326386



you could repair this with a gm 12101899 and the fan switch would be gm 12102621 or acdelco PT308

Tuned Performance

iTrader: (92)

HTH !

irishhockey34

iTrader: (12)

this is a one wire sensor

Tuned Performance

iTrader: (92)

so it is not like post 3 ?

Dens71TA

iTrader: (5)

You should have three sensors. Fan switch in passenger side head. Dash gauge in driver's side head, and ECM in the intake manifold.

irishhockey34

iTrader: (12)

okay okay, i have figured this situation out. My fan was not working properly a few years bad and my mechanic ran a new fan switch on my manifold with a new wire all the way to the relay and just left the old switch in the cyl head inactive. Sorry for the confusion but thanks for helping me out!