Floating temperature gauge on 1987 Merc Cougar?
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Floating temperature gauge on 1987 Merc Cougar?
I have a 1987 V6 Cougar that normally runs at a normal temp, just below half. If I drive it for about 10 miles or more the temperature will occasionally go all the way up to the H and immediately go right back down to below half. I don't notice any difference in performance when the temperature gauge does this. I drove about 100 miles the other day and it did it several times and the car didn't overheat. I'm hoping it's a faulty temperature gauge 
Last edited by GWalcott; Aug 10, 2017 at 01:15 AM. Reason: I forgot to put the make and model in the title
Joined: Aug 1999
Posts: 19,282
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: Floating temperature gauge on 1987 Merc Cougar?
Thirdgen.org is dedicated to 82-92 f-bodies. I'd suggest a site that might be more helpful to you if I knew of one. Best of luck with your issues.
JamesC
JamesC
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Joined: Oct 2004
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Floating temperature gauge on 1987 Merc Cougar?
ONly one way to find out, change the sensor. Other than that I would try a Cougar related board or at least a Ford related board vs a Specific third gen Camaro / Firebird forum
https://www.google.com/search?q=merc...utf-8&oe=utf-8
https://www.google.com/search?q=merc...utf-8&oe=utf-8
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