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This should be considered mandatory reading for anyone with a HMMWV, the description of how the brake warning light works is clearly listed in here.

Yes it will operate in 2nd gear only.

It would take more than a diode, the brake warning light requires a ground to illuminate, there is no ground available in the service brake circuit it simply passes hot along to the rear lamps. Besides you would NOT want the light to illuminate when you step on the brakes as the brake warning...

Also be cautious as the transmission runs on 12V the power relay that switches the 12V to the TCM has a 24v coil.

Could be because the TCM has no power.

Welcome to the forum!!

Here you go. Sorry my first post was wrong..

Not much to report this week, I thought I was going to get the engine installed by this weekend but the pair of .013 flywheel shims I ordered turned out to measure .0115, you would think the Chicoms could at least get that right, that extra .003" of end play put it out of spec (.003-.007" end...

It is an eclectic mix of SAE and metric. It is just called "switch" figure 46 in TM 9-2320-280-24P-1 You can search for oil filter and the transmission filter is in fig 104 in the same parts TM (3 speed) or 105 (4 speed)

That response was from springer1981 to the comment by Maxjeep1 about his experience starting his engine without the turbo in place. Having oil residue in the intake is rather normal for a diesel engine, the crankcase vents through the CDR valve into the intake ahead of the turbo so small...

Welcome to the forum!! Just make sure ALL the preventive maintenance has been done, all fluids and filters etc., put eyeballs on everything between the bumpers. If you just got it from auction there is about a months worth of work to be done first, assume nothing, check everything.

First everything from the valve covers to the oil pan are all the same "container" only the intake, exhaust and combustion chamber/cylinders are separate. so anything going into the valve cover for example can come out the oil fill pipe. Blow-By is a self defined term, it is the...

I would imagine it just dumps anywhere convenient in the crankcase. The oil filler tube is connected to the cam gear case which is open to the crankcase/oil pan

Heat

Sorry, I missed that..

The large hole is the return, the small hole is the feed.

I can only assume he pored water into a turbo and the water came out of the oil return which would not surprise me at all, there are two problems with that assessment. First the compressor is not compressing at idle which is when you are seeing the blow-by and second is the way a centrifugal...

I love those little chargers, I have been using them for several years now, I have one on the MEP right now keeping it ready until the threat of freeze is gone next month.

Do not just start replacing parts just because someone suggests it, troubleshoot your problems to the defective component, with a recent rebuild it is very doubtful you have a defective turbo. One of the biggest mistakes a HMMWV newbie makes is just to start throwing money away swapping out...

Because the panel lights have never worked and the switch you have now indicates you have a short in the panel light circuit (would likely have burned out the internal resistor for dim if they are shorted) I would definitely troubleshoot the panel lamps before doing anything else, especially...