Chevy and GMC Duramax Diesel Forum banner
  • Hey Everyone! Enter your ride HERE to be a part of this months Ride of the Month Challenge!
1 - 4 of 4 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter · #1 ·
I got a 02 lb7 with 395k runs and drives fine when I would get on highway or take off it it takes a while to get up to speed and when I got my dump trailer on empty I can barley do 40 on the highway tried looking up what could be causing it to be slow it wasn’t this bad 2 years ago
 

·
Registered
Joined
·
4,958 Posts
I got a 02 lb7 with 395k runs and drives fine when I would get on highway or take off it it takes a while to get up to speed and when I got my dump trailer on empty I can barley do 40 on the highway tried looking up what could be causing it to be slow it wasn’t this bad 2 years ago
kinda sounds like it could be a lot of things but my first guess would be a boost leak.
 

·
Registered
Joined
·
2,051 Posts
Last time you changed the fuel filter? Trans fluid drain/refill and filter change?
 

·
Registered
Joined
·
6 Posts
im betting boost leak also, check your pipes and the boots from intake-turbo etc, they dry rotted and cracked or possibly even not seated? not giving us alot to go on here
 
1 - 4 of 4 Posts
Top