Quantum Bulldog
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BigMackTrucks.com is a support forum for antique, classic and modern Mack Trucks! The forum is owned and maintained by Watt's Truck Center, Inc. an independent, full service Mack dealer. The forums are not affiliated with Mack Trucks, Inc.
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need help please
in Engine and Transmission
Posted
Just wondering any update to your truck. If truck is smoking white. Try to pull out the both relay for engine brake and see if any changes will happen sometimes sticking relay will cause this problem. hope it will help