I have an 87 with a 5.0 and auto. on my thermostat housing ther are two sensors mounted. I know that one is the coolant temp. sensor, does any one know what the second one is? I do not, any help would be greatly apreciated.

 

my guess is fan switch sensor.. i have to put mine there but need to find a housing with fittings

 

thanks for the info, my hanes manual is not very specific in this area

 

thanks for the info, my hanes repair manual is not very specific in this area

 

is it a one wire, almost looks like a smaller knock sensor. if so that would be the fan switch.. good luck

 

it has two vacume lines coming off of it. i think that the fan switch is located on the passenger side of the engine below the exhast manifold.

 

well im not sure wat there for and your correct on the fan switch location.. i was just curious becuase i had to move my switch to the housing anf my engine swap.

im sure the vacuum diagrams will help a great deal. good luck i know my manual isnt very good either....

 

It's a thermal vacuum switch.

 

do you know what it controls?

 

you have a carb right? it goes to the carb and allows air to pass from the exhaust to help warm up the front part of the carb, just when the temp is under IIRC 80F.

 

thanks scooter,by the way love your 87.and yes i do have a carb, its th e4me like yours. getting a rebuild on it this weekend as a matter of fact.

 

you might check out the carb stickies and do some searches in there on rebuilding and adjusting. For me one of the great things about this car is that it is forgiving while working on it and picking up skills... just keeps going & going!

 

thanks i'll check that out, you know i just kinda stumbled on this car by accident but the more i drive it the more i like it. and i really like this forum,its nice to be able to get good info from people who have some knowledge on the subject. i have alot of freinds who are "shadetree" mechanics but they all seem to say somthing different about this carb. most say its a piece of junk, or i should replace it because its old. however one freind says its one of the best made and try a rebuild, since the latter is the least expensive i think that may be my best course of action. i think he may be correct.