Hello...
I own a 1993 Previa that has started making a very loud noise at idle when the engine is under a load (i.e., primarily when air conditioner is running or sometimes when engine is in drive w/ brakes on). The noise is difficult to describe, but it sounds a little like an old VW bug when its reving from 1st to 2nd gear... The noise is loud enough that it competes with the actual noise of the running engine. The noise immediately goes away when the van accelerates out of idle. The van has about 192,000 miles on it and seems to be running fine notwithstanding this awful noise it makes.
Any ideas on what could be making this noise would be greately appreciated...
I own a 1993 Previa that has started making a very loud noise at idle when the engine is under a load (i.e., primarily when air conditioner is running or sometimes when engine is in drive w/ brakes on). The noise is difficult to describe, but it sounds a little like an old VW bug when its reving from 1st to 2nd gear... The noise is loud enough that it competes with the actual noise of the running engine. The noise immediately goes away when the van accelerates out of idle. The van has about 192,000 miles on it and seems to be running fine notwithstanding this awful noise it makes.
Any ideas on what could be making this noise would be greately appreciated...