IRiot89

Alright so I am Tinkering around on my 87' Gen 4 pickup ,The Temp Gauge in the cluster is no longer working .I have located the Water temp Sender under the thermostat housing . The issue I am running into is the wire Running from the Sender to the gauge is no longer there ( previous owner cut it out ) So My question is , How do I go about restoring the gauge to working order ? Links , Website , Threads ? I have purchased a new Sender But am falling short on finding info about how its all connected . Any help is Appreciated

RAD4Runner

Wrong forum.
Nevertheless, temp GAGE sender is not under the thermostat.
It is hidden amidst and under the intake manifold.
Pls search within the forum using "google", search. Not "thread", Not "post". Latter two methods are LAME.

old87yota

What engine is in your 1987 Truck? 22R? 22R-E? 22R-TE?

The sender for the gauge is in different places depending on your engine.

The sender on the 22R carbureted engine is under the thermostat between the thermostat housing and the mechanical fuel pump.

IRiot89

I have the 22R , I have located the Sender , What I'm lacking is the wire that connects the sender to the gauge , I havent been able to find a picture or diagram or info on the wiring .

yellowtoytruck

looks like it should be a yellow and green wire.

It should be coming off your passenger side fender somewhere if I recall. I no longer have my 22r but a 3.4. When I first got my truck I just put a female compression disconnect onto it because the temperature sending unit had a male. I hope this helps.

EDIT:
YOTA TECH LINK WITH SIMILAR ISSUE

IRiot89

Okay So this the sender , Is it just a single spade female connector ? And where does that wire lead to ?

RAD4Runner

See yellowtoytruck's post above.

IRiot89

I did Ive read thru that whole post several times , It doesnt answer my question , I know where the sender is , Aside from that , The guy chopped out all the wires for it . I don't know how to read a wiring schematic very well . But Ive read the post from the Link It wasnt very useful to me

IRiot89

If Im reading it right , This is my front coil , There should be a yellow wire going from the gauges to this , and this connects to the sender ?

yellowtoytruck

Luckily I’m at my Dad’s in Washington. I have my old truck up here with an engine swap but the wiring is the same and in the original locations. I’m at work right now but I’ll take a picture of it when I get home.

IRiot89

Yus !!!🙌🙌

RAD4Runner

Then access the dash connector on the dash with the Yellow wire with Green stripe (YG) that goes to the water temp gage. Run wire from temp sender to that same connector or wire.

yellowtoytruck

Sorry to give you false hope. My younger self murdered that wiring harness. It’s not what I remembered.