Happygnome65 answered 5 years ago
If your AC system is to low on freon the compressor clutch won't engage. Check the freon pressure and add freon until the pressure reads the amount needed for your system.
1996 GMC Sierra 1500 K1500 SLE 4WD Standard Cab SB
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Maintenance & Repair
4wd will not engage light blinks on 4 high then go back to 2wd.can hear it trying to engage but wont.never has a service 4wd apeared or any thing about 4wd.worked on auto and 4wd high couple weeks ag...
2004 GMC Sierra 1500 4 Dr SLE 4WD Extended Cab LB
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Maintenance & Repair
Seems like a computer malfunction Oil has been changed, followed the sequence for after oil changed, but will not start.
2006 GMC Sierra 1500 SL1 8 ft. LB RWD
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Maintenance & Repair
voltage gauge shows increase to nearly 19 volts and headlights brighten when accelorator is pressed. upon release voltage drops to normal
1995 GMC Sierra 1500
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Maintenance & Repair
Truck was ruining them quit. I have changed the icm, cap rotor and coil I have had coming out of 1 injector while trying to crank what else could it be? I really need some help this is My only way ...
1995 GMC Sierra 1500 C1500 SL Standard Cab SB
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Maintenance & Repair
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