Exhaust brake not working
Cummins 400 isl 2006 travel supreme. About 90,000 miles. Need some help! Thanks
Forum Discussion
Have you confirmed that you do have an exhaust brake.
As mentioned, the Cummins ISL could be ordered with either an exhaust brake, or for more $$ an engine compression brake (aka Jake brake). Also possible you have a VGT that acts as an exhaust brake.
Look at the exhaust manifold. If you have an exhaust brake, it will be bolted to the exhaust manifold.
Calling Cummins with your engine serial number would tell you exactly what you have.
Cummins 800-286-6467
As mentioned, the Cummins ISL could be ordered with either an exhaust brake, or for more $$ an engine compression brake (aka Jake brake). Also possible you have a VGT that acts as an exhaust brake.
Look at the exhaust manifold. If you have an exhaust brake, it will be bolted to the exhaust manifold.
Calling Cummins with your engine serial number would tell you exactly what you have.
Cummins 800-286-6467
