2002 Mercury Cougar car shuts off r

2002 MERCURY COUGAR
136,000 MILES • 2.5L • 6 CYL • RWD • AUTOMATIC
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CHASE GUY
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  • 1 POST
When driving, the car will just turn off, no stutter, just turns off. I put it in neutral, it turns on but turns right off
again. Car runs great, when it's running. Any ideas. What else can I tell you.
Jun 19, 2015 at 5:42 PM
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CARADIODOC
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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The course of action depends on whether the engine is stalling due to a sensor failure or due to low idle speed. With low idle speed, you can keep the engine running by holding the accelerator pedal down 1/4". If it's a sensor failure, there are some that commonly fail by becoming heat-sensitive, then they work again after they cool down for an hour. They typically will not let the engine be restarted right away. Most of the time a sensor failure will last long enough, as the engine coasts to a stop, to be detected by the Engine Computer. It will set a diagnostic fault code indicating the circuit that needs further diagnosis. The place to start is by having the diagnostic fault codes read and recorded. The people at many auto parts stores will do that for you for free.
Jun 19, 2015 at 8:05 PM