BGMachine
Working on cars I can't afford
Hey all,
I’m working on a 95 and I’m having some difficulty diagnosing an engine noise.
Relevant Recent service:
Plugs, wires, coil
Filters/oil change
Belts, idler pulley
Fan clutch
So here’s the problem:
When I’m driving the truck and I accelerate and get the engine over ~2000rpm, a nasty whine /squeal happens and will go away once engine speed drops. What’s strange is I can’t replicate it while stationary. It’s high pitched and I thought it was maybe the idler pulley but I replaced that to no avail. I’m leaning towards the alternator currently but I wouldn’t think that would make noise that seems to be dependent on engine load. I don’t think it’s the power steering pump either since I have to steer at severe angles to get out of the garage.
I’ve tried changing the tension on the bets to see if that changes it too and nothing. Before I pull the trigger on the alternator, can you guys think of anything else that I should check? Thanks
Also:
Both axles rebuilt
Drive shafts & joints greased
I’m working on a 95 and I’m having some difficulty diagnosing an engine noise.
Relevant Recent service:
Plugs, wires, coil
Filters/oil change
Belts, idler pulley
Fan clutch
So here’s the problem:
When I’m driving the truck and I accelerate and get the engine over ~2000rpm, a nasty whine /squeal happens and will go away once engine speed drops. What’s strange is I can’t replicate it while stationary. It’s high pitched and I thought it was maybe the idler pulley but I replaced that to no avail. I’m leaning towards the alternator currently but I wouldn’t think that would make noise that seems to be dependent on engine load. I don’t think it’s the power steering pump either since I have to steer at severe angles to get out of the garage.
I’ve tried changing the tension on the bets to see if that changes it too and nothing. Before I pull the trigger on the alternator, can you guys think of anything else that I should check? Thanks
Also:
Both axles rebuilt
Drive shafts & joints greased