M1009 gen 1 light flashing

[001CUCV]

Sorry if the answer is already on here, tried to search but Only found gen 2 stuff. So about a week about I started my CUCV and begin to drive, and my gen 1 light started flashing. When I hit the brakes it's stops flashing. If i let off brake it starts to flash again. When I put it in park it's stops flashing about half of the time. So what is wrong with my it? Any help appreciated

 

[Warthog]

First thing you should do is make sure your batteries are fully charged and load tested. Never start troubleshooting the elctrical system until this is done. Don't assume. Check it.

Then you need to check the output of the GEN1 (drivers side)

More than likely it is time for a rebuild.

CUCVElectric.com has the best price on rebuild kits.

 

[001CUCV]

Thanks warthog. Now my question is, how do I check the batteries? I dont own any type of tester. Just a volt tester will work? I am good with mechanical just pretty clueless when it comes to electrical.

 

[cpf240]

You'll need a load tester, which can be found at places like Harbor Freight, or you can take the batteries into your local auto parts store, as many of them offer free load testing of batteries. While you are at it, many auto parts stores can also test the alternator.

 

[1stSarge]

You'll need a load tester, which can be found at places like Harbor Freight, or you can take the batteries into your local auto parts store, as many of them offer free load testing of batteries. While you are at it, many auto parts stores can also test the alternator.

Thanks Joe

As inexpensive as they are, I think everyone into MV’s should have a load tester. But I would take it somewhere if I was in doubt.

If you do take the alternator to the parts store for testing, make sure they know it is an isolated ground. Meaning that they need to put the negative clamp on the negative stud, not the alternator case as they customarily do.

 

[Warthog]

Thanks warthog. Now my question is, how do I check the batteries? I dont own any type of tester. Just a volt tester will work? I am good with mechanical just pretty clueless when it comes to electrical.

While it isn't the best. HF has a 100amp load tester for $25. For what we do with them and since we won't use it to make a living it is an okay unit. They also have a 500amp unit for $70. I have the $25 unit and use it monthly for all the MV batteries I have.

If you really want to spend some money then a 500amp commercial unit from Snap-On is one of the best.