02 Sierra rear end hopping - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


GMC/Chevrolet Truck/SUV When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-19-2014, 09:06 AM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Jan 2014
Posts: 10
Thanks: 0
Thanked 1 Time in 1 Post
jekokmey is on a distinguished road
Default 02 Sierra rear end hopping

02 Sierra 1500 extend cab with 180K+ miles. I have been having a noise coming from the rear end when going over bumps or breaks in the road. At road speeds (usually noticeable 30mph and over) the truck will go over a bump in the road and it feels like the rear end is coming off the ground. It feels like the truck even hops slightly to the left and right. Rear and front shocks are original and tire pressure is around 40 cold. At time on snow covered roads when the rear tires break loose the rear end will begin to hop or chatter, once pressure is released the chatter stops and you start over.

I am suspecting the rear shocks need replaced but I am unsure. I don't haul heaving loads often but at time have filled the box with firewood for short distances (less then 5 miles) a few times. Towing is light or at the most 2000 lbs about 12 times during the warm weather season. Leaf springs seem to be entacked with no cracks or brakes.

Is my guess correct or is there something else going on? Thanks for any help.
jekokmey is offline   Reply With Quote
Old 01-19-2014, 09:18 AM   #2
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

usually the stock gm shocks last about 30-50k so you are about 100-130k past due. the kyb gas adjust are good dual purpose shocks, they restore ride and control loads better than oem, or monroe, or any of those store brand ones. i buy them from amazon, just suspension, but you can be in a hurry to get them is all. you might want to check your bushings as well they are likely beat from riding for 100k with no suspension control, if you can pry them with a bar and get significant movement then they are done too
jwfirebird is offline   Reply With Quote
Old 01-19-2014, 02:58 PM   #3
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,647
Thanked 999 Times in 775 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

Justin is right. When it comes to rear end drive vehicles that hop like that, its a sure sign your shocks are bad.
Mike is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2001 Sierra c3 Rear end charter Turk1955 GMC/Chevrolet Truck/SUV 0 08-01-2015 11:03 AM
92-95 to 96-99 front end & rear end conversion fbodyNATION Pontiac Bonneville 1 10-20-2011 07:41 AM
Which do you prefer? Low end power or top end? Bonneville92V688 General GM Chat 43 10-31-2007 06:05 PM
Montréal a hopping place for the Grand Prix Foghorn Lounge 1 06-11-2004 10:35 AM
Rear end feels loose and bouncy... Buddha Jones 1992-1999 6 02-21-2003 12:11 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 02:33 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.