20 Most Recent 2004 Hummer H2 Questions & Answers

There is one of two way to remove them. With the roof fully open check inside the runners for mounting screws or bolts. If there are none visible it is probably mounted from inside the vehicle. If they are inside mounts you will need the glass in the closed position and with a helper it will be easier to lift out. If there is a roof liner fitted you will most likely need to remove it to gain access to the mounting bolts. Not all sunroofs can have new rails fitted so you might have to replace the whole thing.

never worked on a hummer but rule of the day is that there always is a drain on the firewall on the engine side. usually a small rubber hose about two inches long direced downward. Usually you can stick your finger in there and clear it out. Don't shove anything hard into it or you can punch a hole in the evaporator core.

when you shut it off were the wheels cranked sideways-sometimes this puts pressure on the locking system and won't let it disengage-try moving the steering wheel back and forth while applying pressure to the key-I hope this helps-cheers Denny

I had the same problem, Youl need to do one of the following, Change the eginition module or change the driver side control pannael the one for the window/locks (if you can crank the key a bit when its turned off it may help sometimes) sometimes a bit of rain comes in the window and down into the control (locks/window switch) and shorts it out. Trust me I spent time and money to figure out its that or your egnition module. EBAY for the parts it will only cost $100

Bad or damaged wire at the DS seat connectors. Had to install new connectors. Seat wires get cought in the track and pull down from the seat. It also gets stepped on and pulled out. /repair wires and sucure them up in the seat.

plz check and get wheel balancing and alignment done, vibration should go or reduce significantly

Since this is a brake issue, please take the hummer in to a shop and have it looked at. Please do not drive it until you do.

Coolant leaking into engine?? Transmission fluid leak into coolant?

because you are going back to a dealer take it to an accredited auto electrician and have the electric system checked properly instead of guessing the fault

The power folding function of your exterior mirrors on your '04 H2 depends on a plastic gear to collapse those mirrors at the touch of a button. That plastic gear strips very easily. The service adviser at our Hummer dealership said that problem was rectified in later model years with a redesign of of the collapsing mechanism of those mirrors.

I don't mind manually folding our mirrors, and I was afraid to ask about the cost of the parts required to solve the issue. The service guy didn't volunteer the cost of the fix. Not typically covered by aftermarket extended service/warranty plans.

attached to the frame just to the right of your rear tire on passenger side. just to the left of rear tire on driver side. there are two of them that look like a little hinge. best of luck. jeff