To get my HMMWV (M1097A2) in good running order... need help.

[Mogman]

It does appear that the TCM is not turning the MIL light on by what you describe as long as you have confirmed continuity on 567A from the light plug to the TCM, I would say for now as long as the transmission seems to be working correctly go ahead and ignore the missing light and continue to put out other fires until you get to the point you can find and swap the TCM out.

 

[DEA AK]

It does appear that the TCM is not turning the MIL light on by what you describe as long as you have confirmed continuity on 567A from the light plug to the TCM, I would say for now as long as the transmission seems to be working correctly go ahead and ignore the missing light and continue to put out other fires until you get to the point you can find and swap the TCM out.

Thank you, I appreciate getting feedback from someone who knows what's going on with these things.

 

[DEA AK]

What is everyone's opinion regarding the grounding kits that are available? If the truck is working do you still add it or? Not that I want to spend money, I was just wondering everyones experience / input.

thank you

 

[Hummer Guy]

What is everyone's opinion regarding the grounding kits that are available? If the truck is working do you still add it or? Not that I want to spend money, I was just wondering everyones experience / input.

thank you

I have it, but it's definitely not the do it all for fixing electrical issues if you're having electrical issues.

 

[DEA AK]

Copy that thank you

 

[CapePrep]

What is everyone's opinion regarding the grounding kits that are available? If the truck is working do you still add it or? Not that I want to spend money, I was just wondering everyones experience / input.

thank you

It's more about preventative maintenance. Ground issues will most likely happen slowly. For $60, it is cheap insurance as far as I am concerned.

 

[DEA AK]

It's more about preventative maintenance. Ground issues will most likely happen slowly. For $60, it is cheap insurance as far as I am concerned.

Right, I was thinking at the very least it couldn't hurt.

 

[Mogman]

Right, I was thinking at the very least it couldn't hurt.

It actually can cause ground loops that can have unintended consequences, every device on a HMMWV has a specific ground return path.
IMHO the only reason this ever got off the ground was because to install it you must "disturb" many of the original ground points and some found it "helped" when the truth is they stumbled across the problem they had to begin with during the installation of the kit.
So yes given the right circumstances it could hurt.

 

[DEA AK]

It actually can cause ground loops that can have unintended consequences, every device on a HMMWV has a specific ground return path.
IMHO the only reason this ever got off the ground was because to install it you must "disturb" many of the original ground points and some found it "helped" when the truth is they stumbled across the problem they had to begin with during the installation of the kit.
So yes given the right circumstances it could hurt.

Okay, well that's great to know. I guess it goes back to "if it's not broken, don't fix it." My plan is to just get it working as well as I can, not cause additional problems. Thank you

 

[Mullaney]

Okay, well that's great to know. I guess it goes back to "if it's not broken, don't fix it." My plan is to just get it working as well as I can, not cause additional problems. Thank you

.
And honestly, if you removed every connection, scrubbed it with a fine wire brush, coated it lightly with Anti-Ox paste, then plugged it back in -- it would take you a week. Maybe less depending on how motivated you are.

You and your truck would be much happier!

.

 

[DEA AK]

.
And honestly, if you removed every connection, scrubbed it with a fine wire brush, coated it lightly with Anti-Ox paste, then plugged it back in -- it would take you a week. Maybe less depending on how motivated you are.

You and your truck would be much happier!

.

great point, hopefully unscrewing one bolt, the whole truck doesn't fall apart...

 

[Mullaney]

great point, hopefully unscrewing one bolt, the whole truck doesn't fall apart...

.
Yessir... It might very well indeed!
Hopefully not though.

.

 

[TOBASH]

What is everyone's opinion regarding the grounding kits that are available? If the truck is working do you still add it or? Not that I want to spend money, I was just wondering everyones experience / input.

thank you

Fix your wiring and clean your contacts. Those grounding kits won’t fix the real issues.

 

[DEA AK]

Fix your wiring and clean your contacts. Those grounding kits won’t fix the real issues.

Copy that, thank you.

 

[DEA AK]

Transmission fluid spray........

On my way home today, I pulled into the garage and saw a lot of trans fluid on the floor and the right front shock & A-arm.

Obviously a line or the cooler sprung a leak...

Now the question is, how do I find it, add fluid and let it spray?

Thank you

 

[Mogman]

Transmission fluid spray........

On my way home today, I pulled into the garage and saw a lot of trans fluid on the floor and the right front shock & A-arm.

Obviously a line or the cooler sprung a leak...

Now the question is, how do I find it, add fluid and let it spray?

Thank you

How else are you going to find the leak?

 

[DEA AK]

How else are you going to find the leak?

Looks like its a too short of a hose that wiggled off a bit so I bought a longer hose to give that a try.

 

[DEA AK]

So... from what I am understanding the transmission is supposed to be running, go through the gears, holding for 2 seconds, put the parking brake on, put tranny in N and check the level...

With the engine running...?

Just want to make sure I am doing it correctly because I am sure that I have made at least one mistake before in my life...

Thank you

 

[Mogman]

Park is safer and the trans does not know the difference, any reference to neutral hearkens back to the trucks with no park.
run it it forward, reverse then put it in park and check the fluid while idling.

 

[DEA AK]

Park is safer and the trans does not know the difference, any reference to neutral hearkens back to the trucks with no park.
run it it forward, reverse then put it in park and check the fluid while idling.

thank you very much, as always your help is very much appreciated.