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...
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There are about 60K miles on the engine. The most important thing, I think, is to note that you have to have your foot on the accelerator for the knocking to happen. Also, the knocking is quite loud...certainly not a "tapping" if that means anything too. I can't tell you how much I appreciate your help. I'm female and know nothing, and my mechanic doesn't seem too "in the know" about RV's...so I'm concerned.
