Voltage drop????

[MBuhrig]

The alternator checked out fine. I checked out some grounds but still no luck.

I finally took it to took it to the dealer yesterday. They confirmed I do need a new master brake cylinder and I have a ground fault. They said there is a large point at which a lot of grounds come together. The service guy showed me this on the shop manual and said they did not know where it is located! Another certified Hummer mechanic I know said it is behind the driver side wheel well. Can anyone confirm this and I will let the Dealer know. I don't believe they see many H1's there.

Also, are there any good recommendations for All Terrain tires for the 16.5 rim. I have the ply military mud tires now and they ride to rough until they heat up a little.

Thanks again for any input. Hopefully I will get to drive it one day soon.