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1991 Cadillac DeVille 4.9L Engine
Posted to GM Engine on 10/27/2006 13 Replies

After reaasembly and vehicle started all ok until it runs for a short while. Then we lose compression on #6 cylinder. We found valves staying open. Machine shop sent new lifters and valves closed again and had compression. Started engine and after running a fe...

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car Vehicle Data

1991 Cadillac DeVille

VIN 1G6CD53B7M
Engine4.9 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedEngine
Conditions#6 Low Compression
Message Closed

car Vehicle Data

1991 Cadillac DeVille

VIN 1G6CD53B7M
Engine4.9 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedEngine
Conditions#6 Low Compression