Groaning when turning from standing start.

[bamaboy473]

The subject is a 2WD Excursion with 100K miles.

From a standing start and when turning either Left or Right, there's a groan-like sound coming from the rear of the truck. It doesn't do it if I'm rolling; just from a standing start.

My thoughts are either the rear end, U joints or wheel bearings?

Anybody care to hazard a guess or offer a diagnosis plan? To my knowledge, everything is pretty much original back there.

[OregonStroker]

thats wierd. most of us have pickups on here so I doubt many have encountered this issue. Ill bet its just something loose causing a vibration underneith when you put a little load on the powerstearing pump. something to that extent.

[bamaboy473]

Wouldn't the PS pump cause a noise in the engine bay instead of the rear of the truck?

What would bad U-joints sound like? Would a dying rear end makes sounds only from a standing start?

[Ozone-etr1]

power steering it resonates through the brake booster on the fire wall and down through the floor board

[OregonStroker]

u joints and wheel berrings do not make noise from a stand still. I highly doubt either are warn out at 100k either way. Id look around underneith. possibly loose fuel pump. loose cross member. something loose.

[bamaboy473]

Thanks Stroker. That's strange, never would have thought about a PS pump. Now I'm going to test the truck by turning as I start off, then turning before I stop and starting off without touching the steering wheel.

I should notice a difference in the noise if its the PS pump, yes?