Hello,
My 2002 Blazer 2 Door has a terrible noise only in 2WD. Sounds like it's coming from the front possibly right side. It's similiar to when we were kids and used to put a card between our spokes on our bikes. As soon as you put it in 4WD or 4 Low the noise is completely gone. I'm wanting to use this truck to go away this weekend so any help would be greatly appreciated. I should mention the noise only occurs on rotation of the Wheel/Axle as oppose to being still.
Thanks very much,
DBC

 

Does it sound like grinding gears? Something may not be dissengaging properly and if that's the case I wouldn't drive it while it's making that noise. You'll do more damage than good.

Someone else may have a definite answer for you, like Swartlkk if he's around.

 

Not really, it's more like a really bassy continuous axle click. Again like a baseball card stuck in the spokes of a bike wheel.

 

Your front axle is not disengaging. The likely cause is a stuck front axle engagement cable. Try lubricating it with some penetrating oil and working the cable back and forth.

 

ok, next foolish question, where is this front axle engagement cable?

 

Oh one more thing, would this sticky axle still be a possible problem if the light on my dash shows that I am in 2WD?

 

Yes, it definitely could.

Follow the cable up from the passenger side of the front differential into the engine compartment. I think on this vintage of s-series truck, the cable runs up to the vacuum actuator that is located on the passenger side inner fender.

 

ok will check that out and post back results
thanks!

 

No problem! Let us know!

 

I thought the problem corrected itself as all of sudden all the noise was gone! However when I try putting it back in 4x4 the light on the dash just blinks and I hear a clicking under the glove box but it remains in 2WD. Could this still be the engagement cable?
Thanks,
DBC