I wasn't sure where to post this question but I have noticed today a annoying chirping noise coming from the rear of my truck when I'm driving. I hear it more when I go over small bumps on the road. Has anyone had this problem or know what it could be?

 

Is it a chirp or squeak? With the truck sitting still can you replicate it by bouncing the rear end? If you can, then it sounds like suspension noise, perhaps shock mounts or body bushings. If it's a chirp that only shows up while the vehicle is moving, then it is possibly a u-joint going bad.

 

Nah its def coming from the suspension not u-joint. I know that noise because I replaced it last year. Maybe chirp was a bad explanation def a squeak. I'm thinking it might be the shocks, but I have new ones to replace them.

 

Good enough, we'll go with suspension. I have that noise myself, both back and front; more in the back than front. I think it's not too uncommon in Blazers. Some people recommend oiling the bushings/grommets on the shocks. It could also be the body bushings making the noise.

 

That's what I'm thinking itis the bushings. I just took it out for a ride and noticed the same noise up front. I'll grease them up this week and see what happens.