vibration in 02 2500HD Chevy

bubble boy

Member
Location
north Toronto
this happens over 120km/hr (about 65mph?)

engine vibrates-you feel and hear it. if i accelerate thru to say 130 km/hr, still vibrates. when i let up on the throttle anywhere over 120 km/hr, and then reapply to hold speed, vibrating stops. so in other words i can hold speed at say 125 km/hr, but accerating thru 120km/hr is a problem.

dealer has no answer, gm says they'll get back to me. the dealer told me (believe it or not) that they tested 2 similar trucks (2002)and had the same problem, and tested a yukon and had the same problem.

anyone with the 2002's have this happen? any ideas why?

thanks
 

TLS

PlowSite.com Addict
Bubble Boy,

What is your configuration?
Regular Cab:
Extended Cab: Long or Short Bed
Crew Cab: Long or Short Bed


Is your rear driveshaft a one or two piece.

If its a two piece, then that is most likely your problem. The center carrier bearing gets "loaded" and remains in a "non-centered" position making the driveline technically out of line. I had this same problem on my '90 since new. Just blip throttle and it smoothes out!

Dont know what to say, other than some 2 piece rear driveshafts were being replaced with single huge aluminum shafts thus eliminating this center pilot bearing and crossmember.
 
OP
B

bubble boy

Member
Location
north Toronto
was hoping someone could tell me if my prob was dangerous???

and how much $ to replace a drive shaft, if that is the prob?

grateful for any input:cool:
 
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