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1990 Buick Riviera Luxury 3.8L High suction pressure
Posted to GM HVAC on 8/1/2000

I have changed the compressor again along with the orifice tube(it was clean) and the accumulator. The accumulator is not delco. Still the system seems to have high suction preasure. It never will come down and cycle at 28. If you rev it to about 1500 rpm it w...

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car Vehicle Data

1990 Buick Riviera Luxury

VIN 1G4EZ13C4L
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedHigh Suction Pressure
ConditionsNot Cold Enough
Message Closed

car Vehicle Data

1990 Buick Riviera Luxury

VIN 1G4EZ13C4L
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedHigh Suction Pressure
ConditionsNot Cold Enough