2004 Hummer H2 - Answered Questions & Fixed issues

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

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

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

Check the battery has good charge, should be over 12v with engine off and 13-15v when running. If it's not holding a charge correctly it will cause light to come on as low power. There may be something shorted too, keep your eye on power levels with a tester....when you switch off, check....then check again next day "before" you start engine. Look for drop below 12v.

The A/C will remove humidity when it's running. There is a drain tube that lets the accumulated condensate empty on the ground. It may be dripping onto the exhaust. Nothing to worry about.

Mass airflow meter or the throttle body electrical connections.

Howdie sounds like you need to get some wd and squirt it in the Key Spot and then try taking the cover off the bottom of the Bumper and look up too see the Latch if that works take it off you might need to people workin on the cable won to bang on the hood to release it and to move the cable with the Other thanks again for your time

Sounds like your heater radiator pipe is leaking, check input and output pipes into bulkhead, and check heater rad under dashboard. To further eliminate, close off your pipes into the bulkhead, no leaks? Then it's your heater. Good luck.

The gasket around the sunroof glass isnt watertight.there is a troth around the sunroof opening with wheep holes connected to tubes that run off water. Try blowing air through the tubes located at the front corners of the troth. It worked for me.

I believe you have separate temp controls for driver & passenger side check the manual if you have one

How many wires and what color are they that go to the sending unit?

We had this problem on our H2. Ends up that we had to buy a new instrument cluster. In the mean time we used the speed calibration on our GPS unit to say out of tickets. A year later we finally replaced the cluster. Check out the Hummer forums for best places to buy.

if you are using defrost or any setting with defrost it runs through the a/c compessor

Leaving the gas cap off can make the warning light come on. You would need to have the computer scanned for trouble codes next.And if the truck stopped before you replaced the pads, I doubt replacing the master cylinder will fix the stopping problem.