2002 Mercury Sable engine fails when heat is turned on

2002 MERCURY SABLE
117,000 MILES • 6 CYL • FWD • AUTOMATIC
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RVDD1
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  • 2 POSTS
Every time the heat is turned on the engine fails. There is a burning rubber smell and rubbing/dull squeaking noise coming from the engine.
Jan 25, 2010 at 9:05 PM
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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You sure the alternator is producing the correct output voltages during a heavy load
Jan 26, 2010 at 12:52 AM
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RVDD1
  • MEMBER
  • 2 POSTS
absolutely sure that the alternator is not the problem. Charge on the battery is fine .... only have problems when turning on the heat/defrost etc.
Jan 26, 2010 at 11:10 AM
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
Get a voltmeter and read the battery voltage while engine is idling w/o the heat On-Record it now load the the system turn the heat On -Record it-tell me the two readings.
Jan 26, 2010 at 4:59 PM