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Just picked up a 2003 Hummer H2, 108,000 miles. Out the door for $14,000. Originally $19,999 but they've had it on the lot for 5 months. Hard to sell a 'politically incorrect' vehicle here on the Left coast, 39 minutes south of Portland. Bargained down in price also due to the small oil leak. (Ya, took my creeper to check everything out.) Told them it was probably the rear main or rear cover gasket. (Haven't ruled out the oil cooler to block gasket, oil sending unit, cam sensor, or the valley cover that I know will have the bolts finger tight or less.) They looked up the shop rate to pull the tranny and transfer case...they were not interested in tackling that.
I work on my own engines, transmissions, transfer cases, etc. Other than chasing the minor oil leak, it doesn't seem to need much other than routine maintenance.
I do have one specific Hummer question, while I am awaiting my shop manual with the wiring diagrams. Can anyone explain what these are for? Passenger side, right in front of the horn. An option this thing actually is lacking?
Obviously the previous owner did not keep up on maintenance. At least the differentials, transfer case and transmission fluid and filters all looked good when I replaced them. I've now gone over everything, parts are arriving today along with a few things to do while I'm in there for preventative maintenance. Got a lot of it done last weekend. So far New Valley plate gasket because it was leaking and the bolts were loose. Camshaft sensor was also leaking and it's been replaced. Oil pressure sensor looked fairly new but went ahead and replaced it. Going to drop the oil pan and do the oil pick up tube o-ring. No problems yet but it is 21 years old after all. Updated valve covers coming, to cut down on the oil in the intake manifold. AC compressor was using out from under the pulley so that's getting replaced along with the receiver dryer and the orifice. Flexible part of the transmission cooling lines are seeping. I'll replace the flexible part with an 6 fittings and oil cooler line. And the dreaded engine oil cooler lines are also seeping at the crimp connections. Will be replacing those while I have the front differential lower to do the oil pan. And then hook those into the new aluminum 4 core radiator. That's also the perfect time to pull the power steering pump off and replace both pressure lines to and from the hydroboost which are also seeping at the crimps. HVAC control unit in the dash is now replaced with a new unit. Every time you attach the temperature dial it would jump up or down 10°. I'm also going back to the factory resonator and air filter box. Really don't like the constant hissing sound from the K&N system. Looked on k&n's website, that cold air intake retails for just under $500. They Proclaim extra power and have the dynamometer results to show it. It makes like an extra four horsepower at 7,000 RPM, LOL. Also got rid of the cheap plastic heater hose quick connects and will hook up my new heater hoses using Factory spring clamps directly to the heater core nipples.
An item of note is the 4l65e transmission filter grommet. Over the years I've read how people use a hammer and thin screwdriver trying to get it out. Other people say leave it in. The correct way to do it is with a blind bearing puller.. which you will also need for one blind hole bearing in the back cover of the transfer case when you rebuild it. It's literally a 30 second job getting that grommet out, definitely worth doing on a 21-year-old transmission. Here's the picture:
Obviously the previous owner did not keep up on maintenance. At least the differentials, transfer case and transmission fluid and filters all looked good when I replaced them. I've now gone over everything, parts are arriving today along with a few things to do while I'm in there for preventative maintenance. Got a lot of it done last weekend. So far New Valley plate gasket because it was leaking and the bolts were loose. Camshaft sensor was also leaking and it's been replaced. Oil pressure sensor looked fairly new but went ahead and replaced it. Going to drop the oil pan and do the oil pick up tube o-ring. No problems yet but it is 21 years old after all. Updated valve covers coming, to cut down on the oil in the intake manifold. AC compressor was using out from under the pulley so that's getting replaced along with the receiver dryer and the orifice. Flexible part of the transmission cooling lines are seeping. I'll replace the flexible part with an 6 fittings and oil cooler line. And the dreaded engine oil cooler lines are also seeping at the crimp connections. Will be replacing those while I have the front differential lower to do the oil pan. And then hook those into the new aluminum 4 core radiator. That's also the perfect time to pull the power steering pump off and replace both pressure lines to and from the hydroboost which are also seeping at the crimps. HVAC control unit in the dash is now replaced with a new unit. Every time you attach the temperature dial it would jump up or down 10°. I'm also going back to the factory resonator and air filter box. Really don't like the constant hissing sound from the K&N system. Looked on k&n's website, that cold air intake retails for just under $500. They Proclaim extra power and have the dynamometer results to show it. It makes like an extra four horsepower at 7,000 RPM, LOL. Also got rid of the cheap plastic heater hose quick connects and will hook up my new heater hoses using Factory spring clamps directly to the heater core nipples.
An item of note is the 4l65e transmission filter grommet. Over the years I've read how people use a hammer and thin screwdriver trying to get it out. Other people say leave it in. The correct way to do it is with a blind bearing puller.. which you will also need for one blind hole bearing in the back cover of the transfer case when you rebuild it. It's literally a 30 second job getting that grommet out, definitely worth doing on a 21-year-old transmission. Here's the picture:
Ouch my friend.
Now you know why it was so long for sale and they dropped 50 franklins.
New Member in Oregon
