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I had the same issue recently. The wait light stopped coming on and then the next day my batteries were dead. I recharged the batteries and upon reinstallation i could hear the audible clunk of the box when i hooked up the neg terminal. The box was draining the power even with the run/start...

The antennas are a two-piece flexible'ish whip made of fibreglass that screws onto a base spring unit called an AMU (antenna modulator unit). It's Vietnam era stuff that was in service till the late '90's by most NATO countries and the components are readily available, especially on places like...

Full auto AD's do happen. In Bosnia one of our OP's had a 5-round AD with a C-6 (M-240 to all y'all Americans) into a house across the street while proving the gun at shift changeover. However, I'm with Retired that the holes in this case were probably put in the floor for drainage with a...

Odd that the brake light flashed. The wait light will flash if the S3 box senses something wrong.

Out of nowhere my batteries died literally overnight. I pulled and recharged them and upon re-installation I heard the S3 clicking as I attached the neg connector. At first I thought the ignition switch was somehow left in the run position- but it was not. When I turned to the run, power comes...

Grounds. Pull apart and thoroughly clean every single one of them. 9 times out of 10 if lights fail to operate it's because the grounds are corroded. Also, check the wiring for splices and/or repairs that have corroded over time as well as thoroughly inspect the rubber connectors. Don't take...

We had the same arrangement on the Iltis jeep in the Canadian military which we called the 'unstucker kit'. The drums have to go on the rear because the real wheels can be diff locked so they spin at the same rate. The real wheels also can't turn laterally and inadvertently throw the rope off...

There's the burst tank and the new one. You can see the obvious colour difference. The cap receptacle on the Woolfer tank was ready to fail under pressure as well, as can be seen by the lifting ring.

I got the one without the sensor. $200 was a bit pricey, but I suppose the piece of mind is worth it.

So I got a message from Woolfer recently stating that in response to the rash of failures they have pressure tested over 300 of their coolant tanks and all have failed, forcing 'discussions with the manufacturer'. I got my new replacement tank from HPG and there were marked differences from the...

I drive my humvee all year round here in Canada. The only things that truly suck are the heater and the tires. I find the knobby tires don't perform well on the frozen road surfaces and are prone to locking up easily and sliding which can be scary when you've got the momentum to deal with and...

The guy i talked to at Woolfer claims their overflow tanks are US made surplus, so i'm not sure what's going on there considering the one I replaced in my truck was 30 years old. The fan system works fine and it runs at normal temps during normal use. Perhaps there's some partial blockage or...

So this is what happened (photo) with the new tank (literally only 3 weeks old) I installed. I was rolling in a local Santa Claus parade and about 2/3 the way through began overheating to the point where coolant was venting out the discharge hose. I've been in my share of parades with MV's...

I install all of my connectors with dialectric grease to keep moisture out. I also learned a hard lesson and added a coating to the top of the cannon plugs where the wires pass through the rubber to seal-off that potential point of moisture ingress as well.

I had the same issue with having no lights. The common fault is bad grounds. They can make your humvee life miserable. After cleaning and preserving all of the grounds, then running through the troubleshooting guide in the TM i discovered corroded wires within the main cannon plug of the...

I store my goodies in the compartment under the driver's seat in a water tight plastic box. Handy, yet hidden.

The fuel filter on the humvee is an element contained within an aluminum housing mounted on the LH engine firewall. When you buy a new filter element it comes with a new O-ring. Leakage can happen either at the O-ring itself, or at one of the hoses.

Here's the culprit. The previous owner painted the tank black and the age cracking wasn't seen until i removed some of the paint to investigate the leak.

IMO a good portion of the vehicles being bought at auction are with the intent of flipping for a profit. Whether it be to a buyer who just wants the privilege of owning a humvee in any capacity, or with the idea that they may, at some point be able to get it road legal. Personally, unless it's...

The cooked unit is getting replaced, but my concern is if the failure was caused by something other than the regulator merely giving out prematurely or is there something, somewhere in the system that may be putting undo stress on the unit.