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post #1 of 2 (permalink) Old 12-12-10, 03:05 PM Thread Starter
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1989 Mercury Grand Marquis OBD connector location

Hello,

I recently bought my 89 grand marquis, and I have issues with heating inside. I have a feeling the thermostat has been removed from my car, but I would like to check the engine temps with OBD first before tearing it apart. The issue is that I cannot find it. Actron manual points to left fender skirt, clymer manual points to passenger side fender by strut cover, but I just cannot find it. Please advise.

Thanks!
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post #2 of 2 (permalink) Old 12-17-10, 07:57 PM
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Re: 1989 Mercury Grand Marquis OBD connector location

located driver side under the hood... along fender by washer reservoir... it is a big plug and a smaller single wire plug... it is OBD 1 setup in your car


my 1986 Grand Marquis LS... Rose...
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