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1995 GMC Sonoma work or not too work

Tiny
PANEL
  • MEMBER
  • 1995 GMC SONOMA
  • 6 CYL
  • 4WD
  • MANUAL
  • 200,000 MILES
Hey guys. Depending on it's mood the heater will work today but might not work the next, what gives. There is no AC on this vehicle. Also can I put throttle body spacer on a truck w/ this many miles.P.S. Great shape
Sunday, March 29th, 2009 AT 6:45 AM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
What doesnt work? Blower? No heat? If blower is it load or squealing? Can be the motor, resistor, or switch, or even poor connections.
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Sunday, March 29th, 2009 AT 8:18 AM
Tiny
ILOVETHE800
  • MEMBER
  • 10 POSTS
If your talking about the blower motor the first thing I would do is check the ground on the blower motor. With 200,000 miles your bound to have occassional electrical problems. I doubt it is the resistor because if it were the resistor the times that it is not working the high speed setting would still work.
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Tuesday, March 31st, 2009 AT 4:53 PM

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