Cummins Diesel Loss of Power

Avatar
JORDANRANCH
  • MEMBER
  • 2 POSTS
1998 Dodge 2500 4x4 Cummins Turbo Dsl 145k miles

Pulling a heavy trailer in heavy wind in 4th gear. About 2700 RPM at about 65 MPH with cruise on. Engine revs up a bit pulling a hill -touches 3000 rmp and suddenly drops to about 2200 rpm and 60 mph.

since then cannot rev past ~2500 or get ground speed over about 60 mph on the flat.

It feels like there is a wall at 2500 rpm. feels like it does when fuel gels.

nothing "hanging loose" under hood.

truck runs great right to that spot. in lower gears can rev past 2500.

i blew something loose overloading I am sure - just cannot see what i blew loose.

Thanks in advance.
Mar 3, 2007 at 1:30 PM
Avatar
2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
Automatic trans?
Mar 3, 2007 at 11:53 PM
Avatar
JORDANRANCH
  • MEMBER
  • 2 POSTS
5 speed manual
Mar 4, 2007 at 12:01 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle