Stage Four Diesel

Stage Four Diesel

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Diesel/Automotive Repair

Engine
Electrical
Diagnostics
Chassis

03/07/2026

Simple manifold reseal on this ISB 6.7 in a freightliner M2.

01/27/2026
01/20/2026

6.7 Cummins. Twin cp3 pumps, large single turbo, O-ringed cylinder head.

12/18/2025

Customer complaint Chevy 2.8L Diesel crank no start.
Went through some extensive Troubleshooting and found timing is incorrect on the crankshaft from the platonic wheel. Time to pull the transmission.

12/07/2025

Dont forget your maintenance on your money makers. Take care of them and they'll take care of you.

12/02/2025

09/13/2025

Rest in peace Charlie. I didnt know you personally. But you and your family didn't deserve that at all. We loved watching your online debates and speaking truth. I truly hope your family and close friends get the highest degree of justice that you deserve.

08/22/2025

08/04/2025

Doing some simple bench Calibrations.

07/22/2025

Some cummins air handling tests this morning.
Its been fairly accurate.

Photos from Stage Four Diesel's post 07/21/2025

Just started on this Detriot DD16 rebuild.

Customer did not spare anything. Using new connecting rods, New turbo, reman cylinder head and new injectors.

Cant wait to see smoke 💨

Photos from Stage Four Diesel's post 07/12/2025

Believe it or not we also work on vehicles.

Swapping out a internal transmission shift solenoid on a Honda odyssey.

No shifting issues or abuse on this transmission expect for a persistent fault code for the circuit on that solenoid. The resistance on this solenoid was on the high side of hondas "spec".

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Fife, WA