Question about Mercury Cougar

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I have a 99 cougar and about a year ago my brother was fixing my brake lights. He was getting ready to fool with the wiring near the lights (or he might have.im not sure) but ever since he fooled with the brake lights it hasn't started. Just a few weeks ago we bought a new alternator, crank sensor, computer, and a new battery. The engine cranks over but it just doesnt start. Also the lights and everything comes on.I have a v6 and its automatic. i also believe my dad fooled with the wiring under the steering wheel and glove-box but I can not find a diagram for it.

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Hi, when the engine cranks normally but won't start, you need to check ignition, fuel and compression. Ignition is easy enough to check with a spark tester or by positioning a plug wire near a good ground. No spark? The most likely causes would be a failed ignition module, distributor pickup or crankshaft position (CKP) sensor.

A tool such as an Ignition System Simulator can speed the diagnosis by quickly telling you if the ignition module and coil are capable of producing a spark with a simulated timing input signal. If the simulated signal generates a spark, the problem is a bad distributor pickup or crankshaft position sensor. No spark would point to a bad module or coil. Measuring ignition coil primary and secondary resistance can rule out that component as the culprit.

You can get your car wiring diagram manual fro Haynes Manual.....

Posted on Mar 19, 2011

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