Hummer won't start

[Bananatank]

Hello everyone, I could use some help or advice on how to fix this problem my hummer has been having, and I'd like to fix it soon lol. So the past few days my hummer has either barely started as in barely turned over and then cranked or it will not turn on at all. So I started from all the lights and things I have put on and unplugged them, I unplugged my little red switch that is always there for my kcs hoping that unplugging that would be the solution, but to no avail this morning it still didn't want to start. So I have unplugged all my aftermarket lights, and don't know if I should replace the battery and that will solve the problem or try a different approach. I don't know if this could be a possible solution but every time I do get it started the belt squeaks loud as hell for a few minutes then quiets down eventually. Can I get some help from the hummer geniuses lmao

 

[Best4x4]

Go to any auto parts store, and have the alternator/battery tested. If those check out inspect your battery terminals. I had to replace them on my wife's 07. I used the gold plated looking ones from Auto Zone, but I am actually very happy with the quality.

 

[Bananatank]

Go to any auto parts store, and have the alternator/battery tested. If those check out inspect your battery terminals. I had to replace them on my wife's 07. I used the gold plated looking ones from Auto Zone, but I am actually very happy with the quality.

Okay will do! Newb question tho, you don't think it could have something to do with this screeching belt everytime i so get it started?? It may be a coincident but i was wondering if it was causing this to occur or not. Thanks[emoji106]

 

[RamRod]

Go to any auto parts store, and have the alternator/battery tested. If those check out inspect your battery terminals. I had to replace them on my wife's 07. I used the gold plated looking ones from Auto Zone, but I am actually very happy with the quality.

Exactly wher I would start.

If that all seems fine, then check the alternator, make sure it's still putting out a charge (could be related to the best screach you hear, not likely but its possible).... maybe your belt is worn out?

 

[Happy Hummer]

Hi BannaI'm going to put up a random list (lol) and mabe something will click.*Battery*Alt*Tensioner Pulley*Idler Pulley*Belt*Bat Terms*Ground IssueAny of these could be your culprit. I would humbly suggest to start with a replacement tension pulley, ital pulley and belt. Then battery terms and battery. Alt last.Chris

 

[SedonaBound]

The belt is probably screeching because it's slipping on the alternator for one of several reasons, so the alternator isn't charging the battery.

 

[Bananatank]

Thanks all[emoji106] so first I'm going to try and start it if it decides to not start again I'm gonna jump it off and run it to auto zone get em to test the battery. i already bought the belt so thats next step and i guess I'll go from there

 

[Bananatank]

Went out there today to see if it would start bc i had it on the battery charger all day and to my surprise it started right up i got a video of this belt and it starting up just for the hell of it to see if anyone noticed anything https://vimeo.com/124873293

 

[SuperBuickGuy]

the belt is squealing because the battery needs charging... find the drain on your battery. Mine kills batteries in 6 months, they're under warranty but it's still annoying that it kills the batteries...

 

[Best4x4]

I had a squeal on my 07, but it was from a worn idler pulley, and a water pump that was about to fall apart. On my Alpha it was the stretch fit belt for the AC Compressor. That really doesn't sound like an alternator to me vs a worn belt, water pump, or idler, belt tensioner. A bad alternator has more of a growl to it, and a specific sound when under load. If you were to turn on all your electronics you'd barely be able to hear it, but a working alternator under load makes a certain sound.

Auto Zone can test the battery and alternator output. I have 2 project 98 Land Rover Discovery Series 1's, one has a flaky alternator that when u start the truck registers nada zip nothing. Rev the engine up and you can hear it kick in and start charging the system. The second Discovery alternator works great, but you can hear a growl from the bearing.

On all the trucks I've ever worked on the sound above was not the alternator. Not saying it's good (test will give you the results), but that sound to me is more of a worn belt, water pump or belt tensioner. If you've got the OEM battery leads I would replace them as an upgrade anyways. Lots and lots and lots of problems can stem from them. The 12.00 each Auto Zone units fit great, and were a breeze to install.

 

[Bananatank]

I thank everyone who took the time to give me advice and appreciate everyone's input[emoji106][emoji106] Went to autozone they checked the battery and alternator but the battery was the cause to my problems so i replaced that and put on the belt i had just recently bought! Hummer is starting like new and no more screeching so all is well again! Thanks all[emoji108]

 

[SuperBuickGuy]

you have a battery leak... on one car, it was the computer failing to shut down - another cute trick the H3s place. They turn the computer on when you open the door... which, if you're camping and in and out of your car, it will turn the computer on for 4 hours before it shuts it back down. A few times of that and bye bye battery charge.

 

[Best4x4]

Glad your good to go

 

[Bigunit]

That's good news! Keep on truckin'.

 

[Renagade132]

Always keep a charged jump pack in the truck, especially if your traveling or camping, etc.

 

[derian06]

Always keep a charged jump pack in the truck, especially if your traveling or camping, etc.

This. I remember one time I was exploring back roads and ended up in an abandoned factory and turned off the engine, went back and it wouldn't start. On the third attempt it finally turned thank god.

 

[SedonaBound]

Always keep a charged jump pack in the truck, especially if your traveling or camping, etc.

And keep your towing insurance up.