Djudd15

Hello all,

I have come to the experts because you guys are always great!!! I seem to be having a weird and new unusual problem with my 1997 Ford Clubwagon. When driving sometimes the speedometer will be working fine and than all of the sudden it will go down to zero(While still driving) and the engine temperature gauge will go all the way to hot. After a few minutes and slowing down or moving around etc it will reset and the speedometer will work again and the engine temp on the dash goes back to normal. It has been doing this on and off for a month. Yesterday it did the same thing but the oil light also came on. Anyone ever heard of such a thing. How do I begin to start to fix it. Please advise me

Justin

360ci

I'd get the vehicle scanned for codes, even if the engine light isn't on. Stored codes will stay in the PCM for up to 50 restarts. Do you have an oil pressure gauge? The oil pressure dropping while driving could mean a bad sending unit. The speedo could be a bad rear wheel speed sensor, generally, a brake light or parking brake light will accompany this, although not always. You can get the engine temp sensor checked out as well. As it works intermittently, I'd check that the proper fuse is installed that operates those sensors. It's common to find a higher amp fuse in place where a lower amp fuse should be. This is common owner neglect that can bite oneself down the road, generally onto the next owner: circuit keeps overloading, so instead of finding the problem, they install a higher amp fuse. This is also a fire hazard so you'll have to verify the fuse with your owners manual (it may also be listed inside the fuse panel lid).

Hopefully someone else will chime in and offer a solution or better suggestions....

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'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!

Van Halon

You might have an intermittent ground from your dash wiring harness.

Sterling_Six

Hello and good day:

Have your VSS checked ... All modern vehicles have a VSS sensor (Vehicle Speed Sensor) attached to the transmission or an axle that generates a speed signal. This signal is used by the speedometer, cruise control, and some of the engine and transmission computers.

Here is a link you may want to check Vehicle Speed Sensor Information - Description, Operation And Location

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Good Luck and good repairing Sterling_6
"You know, just like in that Book, When Jesus beats up Moses to get Religion!!"