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RWH :wink: - I was frustrated because I couldn't get this truck figured out and after many hours of searching and reading past post on the issue all I seem to come up with was a bunch of **** that didn't make any sense to me or the others ops asking about the pcb (posted by you most of the...

Thanks everyone for their input. I agree with a lot of points and the the rest are completely silly. I am definitely a do-er and will ask 100000000x questions to anyone until I understand. I have very limited time to work on my HMMWV but I enjoy figuring it out and working on it. I have a great...

I'm well aware of normal acronyms like BTW, I am talking about much more complicated items apparently with different names jdhfjdshfkjdshkfnre/ ejhfjbfjebefw systems...... But be warned, people get pissed if you have a question on this forum..... They are wayyyyy tooooo smart for your ignorance.....

He definitely does know his stuff when it comes to these trucks. I agree about the TM's and they like to use a foreign language too. I hate to be so stupid but **** it's like everyone's talking to you in a different language when you ask a simple question.

Thank you for the input as you seem to have a lot of knowledge on this system. I am trying my best to learn but it's a little difficult when the the ones with the knowledge try and use every acronym known to man (EESS, PCB, BOX, S3, GPC, GP, STE/ICE, TSU) when trying to explain something new to...

Hmm thanks for the post. Based off of that I don't have a TSU, instead I have a GPC. I've read that GPC's are often faulty. Wonder if I should just replace that instead of a $650 box???

Another off topic question but when I was digging around trying to find the problem I noticed that I have a 192c7-122589312 yellow sensor in the back center of the block and I looked up the p/n and it seems to be a tachometer sensor which I don't have a tach so why would I have a sensor???

So while I am mechanically inclined, my 89' M998 is the first diesel and 24v system so I am a little unsure of what some of the components are. A few weeks back my "wait" light started to come on for just a second then go off but it still started fine. It did that a few times and then started...