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International Automotive Technicians Network
1986 Chev/GMC Truck Suburban 5.7L Fast Cycling
Posted to GM HVAC on 8/2/1999

I have quick cycling with the high side only reaching 150 psi. The outlet temperature is warm. Could not find any leaks (dye,black light). I do not know if I should have flushed the system and use PAG oil seeing that Freeze 12 is mostly 134a? Also upon dis...

 
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car Vehicle Data

1986 Chev/GMC Truck Suburban

VIN 1G8GK26M6G
Engine5.7 L / 8 cyl
AffectedFast Cycling
ConditionsNot Cold
Message Closed

car Vehicle Data

1986 Chev/GMC Truck Suburban

VIN 1G8GK26M6G
Engine5.7 L / 8 cyl
AffectedFast Cycling
ConditionsNot Cold