nelson1969

I have a pick up 1994 2w. that the temperature gauge is not working I'll appreicate any info. why is not working. thank you.

all_terrain17

EDIT: Useless post

timebandit

The sensor for the temp gauge has one wire. It it way down the middle of the intake between the middle cylinders. It can be seen from the top.

dcg9381

That's the temp sender for the ECU.. I could be wrong here, as I know the earlier EFI system better.. On the pre 88.5 systems, the temp sensor for the gauge is in the lower plenum, middle of the plenum, next to the head on the top side... basically middle of the valve cover, go over to the passenger side of the valve cover - straight down. single wire deal. It rarely goes dead, but the wire might get unplugged.

all_terrain17

Probably right, dcg...Wondered what that plug was for Guess I can at least point it out...




Sorry for the misinfo

nelson1969

thank you for the info. but if wires are all plugged then the temp. sensor needs to be replaced?

DudeBud

first pull the plug from the temp sender and find something to ground it out with. ground it out and turn the key on make sure the gauge goes all the way up. if it does then your wiring and gauge are fine.. swap out the temp sender. i have a weird problem with mine but its the gauge. i can tap the cluster and it will start working..

dcg9381

Don't do that unless you'd like a burnt up temperature gauge.
Ground it through a test light or some other resistor, otherwise you're not limiting the current flow in that circuit.
It probably won't short immediately, but holding it grounded is a bad idea.

DudeBud

its just for a sec and wont hurt the gauge..