Question about 1999 Ford Taurus
Does the car overheat? I believe disconnecting the coolant temp sensor only turns the fans on as a default precaution to protect the engine. You likely have a wiring issue. The radio and speakers are integrated into the electronic control system as you seem to have figured out. There is also a GEM module under the dash that is also part of the integrated system. Visually check for water entry at the firewall under the dash, and any obvious loose connections or stripped wires. Also, has the car been damaged by a crash? Has it been in a flood? Have aftermarket components been installed and/or removed? I wouldn't condemn the processor yet, but I won't guarantee it hasn't received damage from the original cause. I would get someone to run self test, write them down, clear them, and drive the car. Then, focus on the trouble codes that remain. Pinpoint tests are available in what used to be the Ford 'H' manual. You can find some of these used on ebay for cheap. If you can get the trouble codes, I may be able to point you on a straighter path to finding your problem. Good luck. This kind of problem takes some serious strategy. It is always best to start with a good visual inspection to eliminate the obvious.
Posted on Jun 22, 2009
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Posted on Jan 02, 2017
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