2000 Mercury Cougar Vehicle will no longer start.

2000 MERCURY COUGAR
60,000 MILES • 6 CYL • 2WD • AUTOMATIC
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RPESCH
  • MEMBER
  • 1 POST
While replacing the brake pads, I inadvertently placed the key in the ON position (beyond accessory) for over an hour to listen to the radio. When I completed the job and tried to start the car, it turns over but fails to start.

Could I have damaged any electrical components with the key in the RUN position while the engine was not running?

The vehicle has always run good prior to this. All fuses are good. All relays in the engine compartment are good. The fuel shut-off reset button is not 'popped up'.
Nov 18, 2009 at 4:45 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Check what's missing fuel or spark-Do below

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
Nov 18, 2009 at 6:17 PM
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