20 Most Recent 2006 Hummer H3 - Page 5 Questions & Answers

If it works at the accessory position and not on the run position. I would go after the run wire to the radio. If other things don't work in the run position, look to the ignition switch.

follow the owners manual, usually 3 to 5 thousand miles, oil does not go bad but it absorbs contaminants, and can only do so much, also check any filters

To engage the 4wd you need to shift the gear to N(neutral) the select the 4 wheel option you need on the dash panel.

Not hard at all,remove the plastic and the coil plugs then remove the spark plugs

Check the plug cable

That red light with the paddock is the immobiliser

Check that the shift cable selector is not broken

To reset the oil change,put the key on then press the gas pedal 3x with the car on,the start the engine,the oil change light will be reset

Please check the water level when the car is cold befor sending it away

Change the battery and see what happens.Hummers are very sensitive to low voltage

Cylinder 1 is in the front next to the fly wheel

Check the fuses of the lo and hi 4 wheel drive or disconnect the terminals put them together for ten minutes and reconnect and start and see what happens

Check the main power fuse of 100watt

Check the steering rack plastic housing they could be the source of the leak

Disconnect the terminals from the battery put them together for ten minutes and reconnect the window system will work again,but you may need to replace the window opening unit for the problem

Check int= the fuse box the alternator fuse

Check the center bearing and universal joints of the crankshaft if they are not wornout

What about the batteries in the remote did you check them

Check that the bulb is not blown and needs replacing

It sounds like the v belt is not tight enough or is on its way to snapping up,you might need a new belt