85 Coolant temperature sensors
Thread Starter
Drifting
Joined: Feb 2013
Posts: 1,464
Likes: 48
85 Coolant temperature sensors
Hello everyone, I am trying to make sure that the wires on my oil temperature sensor and water temperature sensors are not crossed. The service manual says that the wire to the OPS is green and white. And if I ground the wire the reading should be 330 degrees F. I think that the wire to the water temperature sensor in the drivers side head should be green. Is there way to test that wire? I can't find it in the service manual.
I'm asking because I think the wires are crossed and this could be why the car is feeding too much fuel.
Thank you
Joe
I'm asking because I think the wires are crossed and this could be why the car is feeding too much fuel.
Thank you
Joe
Drifting
Joined: Jul 2022
Posts: 1,805
Likes: 365
From: Central Florida
Water temp sensor, drivers head between cyl 1 & 3 in my 87, is HD fan water temp sensor. It does not talk to the ECM and is not part of the mixture system. That sensor is simply a switch to turn the HD fan on and off. The connector is round and looks like a cigarette lighter. Do you have the Z51 package? Is the second fan in front of the radiator pointed toward the engine ?
https://www.corvetteforum.com/forums...ark-plugs.html
.
.
https://www.corvetteforum.com/forums...ark-plugs.html
.
.
Last edited by Vets-Vet; Mar 11, 2023 at 10:04 AM.
Team Owner
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
The OP has an '85 and should have an FSM.
Between 1 & 3 on 1985 is coolant temp, fan switch is in the right cylinder head between 6 & 8, OP temp is above the oil filter base at rear.
*** On a 1985 the coolant temp switch/sender the wire I believe transitions from BLU to DK GRN
Between 1 & 3 on 1985 is coolant temp, fan switch is in the right cylinder head between 6 & 8, OP temp is above the oil filter base at rear.
*** On a 1985 the coolant temp switch/sender the wire I believe transitions from BLU to DK GRN
Thread Starter
Drifting
Joined: Feb 2013
Posts: 1,464
Likes: 48
Hello and thank you both. What you are saying is what I thought I remembered. The schematic of the 87 is very helpful. I couldn't find that one. And I wanted to use it to check where the wires went .
A Big thank you to you both
A Big thank you to you both
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski