6.5L wiring diagram

[usmc81301]

Does anyone have a wiring diagram for the HMMWV 6.5L engine. I looked thought the manuals and can't find it. Everything is running good but when you turn the key off it still runs.

 

[emmado22]

The "key" wiring is on the body harness, not the engine harness. Look in the WAY back of 20-3.

 

[Chief_919]

Which model truck and I will try and get one, turbo or non-turbo, what transmission?

I have run in to that problem, more than once, and almost every time the cause was the wiring harness rubbing and shorting out allowing the circuit to backfeed or a relay in the start circuit that went bad and was backfeeding.

Oh, and once where a bonehead had plegged the male and female connectors in the circuit for the non-existant CTIS solenoid. The harness on a M1114 has the connections just sitting there, under the park brake/shifter. If somebody has been messing around down there and plugged those in, it will cause that problem the next time it is started.

 

[usmc81301]

The truck is an M1026 that used to have 6.2L but now has 6.5L turbo charged with 3L80 Tranny.

 

[Chief_919]

DId you keep the original harness and modify it or swap in one from a 6.5 truck?

Try this one to start.

 

[usmc81301]

Kept original wiring harness. (6.2L)