Do jake brakes damage the engine?

Bring that big black house on wheels on over. I'll put new spark plugs in it and give you a free brake fluid flush! Lol

 

Always check the muffler bearings when changing spark plugs on a diesel!

 

My diesel spark plugs supplier includes a new set of muffler bearings with each set of plugs.

 

Never trust a car salesman. Never trust a service manager. Never trust a service writer. Most of them don't know $#!+ from apple butter, and......they all work on commission. They will all try to sell you stuff you don't need, and more often than not, never fix the original problem you showed up with. I have always wrenched on my own cars, pick up trucks, motorcycles etc. On the rare occasion I took one of the above to a shop to have it worked on, they almost inevitably did a halfa-ssed job or effed something up

 

As was mentioned almost all of the newer model automatic trucks automatically engage the jake in between shifts to shift quicker, whether you actually have the jakes on or not. So annoying as it may be listening to the straight pipe jakes in between every shift, not sure it’s actually hurting anything.

 

Big difference computer controlled engine brakes and shifts. I have an old 18 speed I have to do manually