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1990 Pontiac Grand Prix LE 3.1L Mode Switching
Posted to GM HVAC on 8/21/2000

AIR BLOWING OUT OF DEFROST & BOTTOM , TESTED CONTROL PANEL, FOUND 2 CIRCUITS INOP, REPLACED CONTROL, SAME SYMPTOMS, TESTED CIRCUITS FROM SOLENOID TO CONTROL, ALL OK, REPLACED SOLENOID BANK, FOUND CRACKED VACUUM CHECK VALVE UNDERHOOD, REPLACED, NOW IT WILL BLOW...

  Related Documents & Media  1990 Pontiac Grand Prix LE

 
Message Closed w/FIX

car Vehicle Data

1990 Pontiac Grand Prix LE

VIN 1G2WJ54T6L
Engine3.1 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI
AffectedMode Switching
ConditionsWon't Switch
Message Closed w/FIX

car Vehicle Data

1990 Pontiac Grand Prix LE

VIN 1G2WJ54T6L
Engine3.1 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI
AffectedMode Switching
ConditionsWon't Switch