I have an intermittent sound, sounds like a buzzing, that only occurs with the vehicle in gear, almost sound like something is trying to lock...I traced it to a "unit" in the right rear panel of the truck, it has yellow, what look like, air lines running into it...Pardon my ignorance if this is stupid, but it's driving me nuts and I finally found it...And help will be greatly appreciated...

Speaking of locks, is replacing a door lock expensive, I can only lock and unlock from right door...

email is stephen@apexfinancialmortgage.com

Thanx Stephen
Hodgenville, KY
'94 C280 142K!!!!!