1979 Ford F 150 Wants 2 Die Put Lights On Heater Fan

1979 FORD F-150
130,000 MILES
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ANONYMOUS
  • MEMBER
  • 1 POST
it wants 2 die when i put the lights on or heater fan
Mar 8, 2013 at 6:09 AM
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RANDICO
  • CAR REPAIR CONTRIBUTOR
  • 174 POSTS
Check the charging system a good battery need a good charging system . You have a 12 volt battery . The job for the alternator is to keep the voltage stable.so at a running condition you will have 2 volts above battery voltage. Either the alternator has a weak out put, or the vehicle body and engine ground has high resistance or bad connections
Mar 8, 2013 at 6:55 AM
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ASEMASTER6371
  • CAR REPAIR CONTRIBUTOR
  • 52,796 POSTS
just to add, what motor do you have as it may not be keeping a good idle under load

Roy
Mar 8, 2013 at 10:23 AM
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