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Or you wired one of the hot leads (17 or 18) directly to the 91 ground lead in one headlight. Check the numbering on the light wires. 17 to 17, 18 to 18, and 91 to 91 There is no #16 in the headlight circuitry.

You didn't say whether this happened after you installed a particular component or after you installed all 3 of them. It's always good to go back to the last thing you did when a problem crops up. My recommendation is to reinstall the original 3 lever light and dimmer switches leaving the new...

23"

Years ago I took the basic M998 electrical schematic out of the -20-3 manual down to a Kinkos copy shop and had it double sized and then lamminated. That way I could use a grease pencil on it when I was troubleshooting. It's been invaluable over the years. The trouble with this theory is you...

danke, jetzt verstehe ich

Take your multimeter (voltmeter) and see if you have any power on pins V & W of the STE/ICE connector. This will verify that the vehicle is seeing the batteries and you should have power to the truck. On the engine connector to the control box make sure you have power to pin E. This is the...

This is the time of the LED. Almost anything you can find out there will run from 10-30v so no converter / voltage dropper / regulators are necessary for them. I installed Truck Lites in mine a year or so ago and couldn't be happier with them or their light pattern. Be cautious with cheap...

Welcome to Steel Soldiers! If this is a first HMMWV the first thing you want to do is download a copy of TM 9 2320-280-10. This manual is the basic operators manual and has all the information in it about the trucks and capacities. There's also a wealth of other information that you need to...

Since there is NO vacuum system in the HMMWV it is highly unlikely that you have a vacuum leak! However, the Kysor Cadillac valve that controls the fan clutch is right there in the same area and hisses all over the place until the system reaches arounf 230 degrees and it shuts off to actuate...

The gauges themselves are notoriously flakey and shouldn't be relied on for any serious troubleshooting. Always use a good voltmeter for voltage measurements. You can read actual battery voltage on pins V and W on the STE/ICE connector from inside the truck.

Compression check is in order. Especially after overheating problems.

You never said whether the LED headlights were military or aftermarket. I've never seen anti-flicker devices used with 24v headlights. They are fairly common with aftermarket 12v LEDs. Now if they came from the military we're playing in a new ballpark and if they are Chinese then you might as...

If you have an actual hardcopy of the -23 manual could you scan it and post a link to it here on SS? Googleing it here in the States get's you nowhere as NornB said.

12338839-4 HANDLE,BOW PART OF KIT P/N 12340765 4 PART OF KIT P/N 57K0158,PART OF KIT P/N 57K0163,PART OF KIT P/N 57K3499. UOC:A13,A14,BVY,H13,H14,NNN This one?

I guess the question you need to ask and understand is how much CCA power do you need? The answer is dependant on the climate where you live so I don't think there's a perfect, one size fits all answer.

I recently replaced the batteries in my M996A1 and after years of using Interstate 6TLs that only lasted about 28 months I decided to go with 24Fs. They are the same height and length as the 6TLs but a couple inches narrower so you can use your old battery hold down bracket with them. They have...

Chevy Blazer?

I put a piece of 1/2" conduit 1" long in the center to keep everything concentric and 4 allen head cap screws to hold it all together. Worked like a charm.

There are a couple of options when it comes to the fans in these trucks. The early GM cars had a temperature controlled fan clutch that self adjusted based on the engine compartment temperature. You had to modify the fan pulley but otherwise the modification wasn't that difficult. This was a...

NormB, that message was directed at all those that buy these trucks and then ask "What's a HMMWV" not an experienced old hand like yourself.