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1986 Chevrolet C30 Custom 7.4L Cooling Systems
Posted to GM Engine on 8/9/2018 42 Replies

Truck overheats only at Highway speeds. Can drive all day at 55 mph but take it to 65 or more and truck will overheat. We just purchased this Flatbed Rollback for ocassional use. Original 92k miles truck has had previous recent valve job. We installed new ...

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  Related Documents & Media  1986 Chevrolet C30 Custom

 
Message Closed w/FIX

car Vehicle Data

1986 Chevrolet C30 Custom

VIN 1GBJC34W9G
Engine7.4 L / 8 cyl / GAS
Trans4-speed Standard
DeliveryCarburetion
Message Closed w/FIX

car Vehicle Data

1986 Chevrolet C30 Custom

VIN 1GBJC34W9G
Engine7.4 L / 8 cyl / GAS
Trans4-speed Standard
DeliveryCarburetion