Question about 1999 Lincoln Town Car
1999 lincoln town car 4.6L, good spark, good fuel pressure, good B+ to each fuel injector but no ground from pcm at any injector. Main pcm ground seems clean/tight. Does the theft system prohibit injector ground if a fault is present? Can I replace the pcm with a known good unit with the same part number from a salvage vehicle? Any common problems with the town cars? Thanks.
Yes the teft light will stop the vehicle from running. that is the pats system and can cause all sorts of trouble. if the light flashes fast its not reading the key. no start. if it turns on for two seconds and shuts off the it should start
Posted on Feb 06, 2010
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In 15 yrs as a master tech I have ever only seen one bad pcm. People always want to jump to that first. That said. If you have spark it is not the theft system making the car not run. If this were the case you would get a no fuel/no spark condition. What about the timing signals, crank, and cam sensors? you can check them with a voltmeter set to AC voltage. The 4.6 is well known for bad individual spark plug coil packs also. Check each cylinder for spark not just one.
Posted on Feb 26, 2010
Would a bad coolant temp sensorcause a no start problem
Posted on Nov 11, 2012
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Posted on Jan 02, 2017
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