Engine knocking
Our RV makes a loud knocking when all 3 of the following occur simultaneously, overdrive kicks in, engine fan system turns on and accelerator is pushed. Does anyone have an idea of what could be caus...
Forum Discussion
How many miles on the engine. It may be a carbon build up in the heads and is causing pre-ignition. Premium fuel will help.
Have the engine checked for proper timing and advance.
Ken
Have the engine checked for proper timing and advance.
Ken
