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97 thoughts on “Six day diagnostic! 2008 hummer h2 6.2”
  1. Avataaar/Circle Created with python_avatars ShadeTree says:

    The wife had an 03 Gran Prix with the same issue, there was a switch in the center console that went bad. Good catch, I would have jumped right on the incorrect component. Stay safe Brother

  2. Avataaar/Circle Created with python_avatars Dubious says:

    This vehicle needs an electrician, not a mechanic.

  3. Avataaar/Circle Created with python_avatars Daddyoh says:

    Had a similar issue on a 2005 Tahoe after another tech installed a new switch. He didn't rotate the new switch enough to match the old one. I pulled the switch out and rotated it two more clicks and reinstalled it and it worked fine after that.

  4. Avataaar/Circle Created with python_avatars nitrous07me says:

    If you cycle the shifter from park to drive quickly & sometimes hit the shifter with your palm while in park it’ll let the key release, that’s how I usually condemn a shifter

  5. Avataaar/Circle Created with python_avatars jafopt says:

    My first thought is they were tricking the computer to run on lower octane gas with that plugin.

  6. Avataaar/Circle Created with python_avatars derek palmer says:

    What about the feed from the fuse box to the gearbox switch is there any issues with the feed. It might have a break in the wire .

  7. Avataaar/Circle Created with python_avatars Noonehere says:

    Just drill a hole in the bottom cover and show them how to push something small in to push the solenoid free…..and maybe someone will eventually figure it out and steal it from them! Problem eliminated…..

  8. Avataaar/Circle Created with python_avatars d455ave says:

    One of my cars developed a problem,, it would not idle. Let off the gas, and it just shut down. LSS- after some troubleshooting, I discovered that the wire inside the engine harness, that controlled the idle air solenoid had a break. Inside the insulation.

  9. Avataaar/Circle Created with python_avatars bobbg says:

    You take thoses modular fuse boxes out you should spray all the male and female connections with tunnel cleaner, like they used to use on tvs that you manually changed channels with, it will clean and lub all of them up to help stop corrosion
    Even changing one out you still need to do that. As for sevral problems that tells me it could be the main buss that pulls from the battery .
    Also a good way to clean contacts is the eraser on a number 2 pencil youd be surprised how much shit you can get off metal with them.

  10. Avataaar/Circle Created with python_avatars Jay Stevens says:

    We all could use a Hummer

  11. Avataaar/Circle Created with python_avatars general says:

    My mom's Hummer h3 sunroof leaks or might be the drains for it is leaking too where's this place located at the point out how much it cost to redo it

  12. Avataaar/Circle Created with python_avatars Jeff Briscoe says:

    The H2 are garbage going by my aunt. She put them together in a dissembling line all so she couldn’t purchase one either because she knew all the problems that they had. She said Better off getting a military Hummer.

  13. Avataaar/Circle Created with python_avatars Alex Staten says:

    Thank god I’m not the only one that thinks wide ass fender flares on a skinny wheel base looks stupid as hell

  14. Avataaar/Circle Created with python_avatars Sergio Jimenez says:

    GM is notorious for electrical issues🙄

  15. Avataaar/Circle Created with python_avatars bobbg says:

    Test airbag collection sensor crash it into a brick wall. If the airbags don't deploy replace frt clip and broken sensors

  16. Avataaar/Circle Created with python_avatars bobbg says:

    Shifter linkage, probly has a hot wheel shoved under the shifter.

  17. Avataaar/Circle Created with python_avatars bobbg says:

    Stalling cheap Chinese made injectors sold by pep boys or some auto parts store, not a GM factory part. Like thats any better.

  18. Avataaar/Circle Created with python_avatars bobbg says:

    If I can pull a humvee not hummer into a 6×7 garage door that H2 will fit no problem. Yes a real mitilary Humvee owned by the US mitilary, dam thing drove like a tank no creature conforts.
    Tottaly unlike hummer or H2 by the way all 3 fit into a 6×7 foot garage door.

  19. Avataaar/Circle Created with python_avatars HUBBABUBBA DOOPYDOOP says:

    I wasn't aware there is a PCB in that module.
    I thought it was simply a plastic molded box with fuse
    and relay blade terminal "extenders"🤷🏽‍♂

  20. Avataaar/Circle Created with python_avatars Sadayan Ebramsah Ismail Ghani says:

    KTM bikes owns this Hummer?

  21. Avataaar/Circle Created with python_avatars T. J. says:

    Those fuse blocks are a nightmare on GM and Chrysler products, you'd think Ford would do the same but they got cool stuff like frame mounted fuel pump modules that will just corrode a hole in the entire thing. Gotta love electrical shorts.

  22. Avataaar/Circle Created with python_avatars B. Powell says:

    Maybe spray some key lube in the ignition key slot !?

  23. Avataaar/Circle Created with python_avatars Aaron Jubinville says:

    Keep up the great work man you are amazing and I look forward to watching part 2

  24. Avataaar/Circle Created with python_avatars Christopher Wise says:

    these solenoids are freaking stupid. if a battery is dead, it locks the key in the acc position keeping power running and draining the battery even more. i deal with crap on a daily basis at work. i have to hook a jump pack up to get the key out before i can even run my battery and charging system tests…

  25. Avataaar/Circle Created with python_avatars Troll With A Purpose says:

    calling bad key transponder made worse by the ODB plug in battery drain

    so, fuse box with intermittent cuts will also reset that circuit…should put lithium or dielectric on pins and plugs so it don't corrode again

  26. Avataaar/Circle Created with python_avatars Nate Davis says:

    138,000 miles? So that's about 10,615 gallons of gas!

  27. Avataaar/Circle Created with python_avatars Kevin H says:

    the connector on the ODB port is for the stereo. allows the aftermarket head unit to read and display vehicle info through the use of an idatalink unit (maestro rr/etc)

  28. Avataaar/Circle Created with python_avatars DO NOT RESPOND says:

    As these old vehicles age it will cost a fortune to keep um running.

  29. Avataaar/Circle Created with python_avatars docgiggles130 says:

    Nice Suburban you worked on here. Those factory body kits are very well done…

  30. Avataaar/Circle Created with python_avatars jonathan bell says:

    Makes me want a Hummer H2

  31. Avataaar/Circle Created with python_avatars haywoodyoudome says:

    Had a similar issue with the wife's old Subaru Forester. Gear selector switch intermittently stopped working as a result of a sugary beverage being spilled…..

  32. Avataaar/Circle Created with python_avatars Jethro Tull says:

    Resistive connections are a headache and the high impedance / low load of a DVM can actually make the job more difficult. You may see little or no drop from a circuit with corroded connections until the circuit is subjected to a load. I often laugh when I see somebody pronounce their battery is “good” because it has 13.X volts under No load.. LOL. As a matter of fact a simple light probe may do better then a DVM.

  33. Avataaar/Circle Created with python_avatars Neal Fenster says:

    The heat in the engine compartment could affect the fuse connections and cause the other intermittent issues. I am always jealous when i see you use the power ratchets, after remembering all the sore wrists i had using regular ratchets! I really enjoy your videos.

  34. Avataaar/Circle Created with python_avatars Kevin Felty says:

    Cool

  35. Avataaar/Circle Created with python_avatars Kevin Felty says:

    Some times that's all it takes.

  36. Avataaar/Circle Created with python_avatars SPC Calhoun 4653 Life Safety says:

    Hey whacha call a hummer h2 that was flooded

    A hummer H20

    he he he…

  37. Avataaar/Circle Created with python_avatars Patrick Brady says:

    Thats a diagnostic… Wish more mech were like you

  38. Avataaar/Circle Created with python_avatars Clark Kent says:

    Here's how you fix those you pull the pin on it you throw it inside there and you get back problem fixed

  39. Avataaar/Circle Created with python_avatars Vern Freeman HTD4LIFE says:

    no way I think it's a little thing you took out of the module connector under the dash is the problem it's all part of that plug it back in and check

  40. Avataaar/Circle Created with python_avatars James Sampson says:

    What was the plug that you pulled from the OBD II plug used for. Thanks, great video as always.

  41. Avataaar/Circle Created with python_avatars Joey Layman says:

    What about that wire you pulled of the diagnostic plug

  42. Avataaar/Circle Created with python_avatars Sqwince23 says:

    Your wiring diagram says the supply of that circuit is "PCB Relay Energized" check the relay they tend to stick.

  43. Avataaar/Circle Created with python_avatars Stephen Caine says:

    It’s a Chrysler vehicle. That’s the problem.

  44. Avataaar/Circle Created with python_avatars bobbg says:

    Diagnosed, it uses more gas then anything on the road today. Must be owned by a gas station owner.

  45. Avataaar/Circle Created with python_avatars Don's Junkmail says:

    Bad sound activated hum switch.

  46. Avataaar/Circle Created with python_avatars August Inter-nation (Augy) says:

    WOW! Ray, you managed to take diagnosis to a new level!…Excellent video and well done!

  47. Avataaar/Circle Created with python_avatars hasv e says:

    I had a chevy hhr that would not release the key when the battery was low.

  48. Avataaar/Circle Created with python_avatars solly773 says:

    I'm going through the exact same thing right now…I've literally have had to unplug my battery because my suv won't turn off completely and won't release the key (2004 gmc envoy)

  49. Avataaar/Circle Created with python_avatars Robert Grosser says:

    Throughout my life I have had to deal intermittent electrical faults numerous times and on numerous different vehicles and I find them to be just about the most temper inducing things ever invented. Ray I have to say that I greatly admire your diagnostic skills and patience. I love your videos and I have learnt so much from you. Many thanks from Australia 🇦🇺

  50. Avataaar/Circle Created with python_avatars theSkeptic says:

    What do you think about GM's H2 engineering?

  51. Avataaar/Circle Created with python_avatars Stephen Lan says:

    This was a good one

  52. Avataaar/Circle Created with python_avatars Don's Junkmail says:

    Better watch the gas guage too

  53. Avataaar/Circle Created with python_avatars DashCamAndy says:

    That faux woodgrain looks less realistic than the faux woodgrain in my '99 Cherokee. It should be a surprise, considering the massive difference in MSRP, but this Hummer is a Chevy, so it makes perfect sense.

    And, c'mon, GM, you've done better woodgrain in the past!

  54. Avataaar/Circle Created with python_avatars Richard Grant says:

    Ray – the best one handed mechanic in America!

  55. Avataaar/Circle Created with python_avatars Dapper Dave says:

    Ray, your troubleshooting of electrical issues is nothing less than outstanding. After 42 years of electrical engineering and a whole lot of troubleshooting and not one for "rattle can maintenance"…I would however recommend that you add a can of "Caig Laboratories DeoxIT D5" to your arsenal as it is an outstanding treatment for Connectors, Switches & Contacts that really does work.

  56. Avataaar/Circle Created with python_avatars Richard Sinclair says:

    Ray, how come you never contact cleaner on the pins and connector contacts? Just curious.

  57. Avataaar/Circle Created with python_avatars Daniel Clark says:

    Odd that the device that was plugged in the obd2 port was removed that the key comes out easier. Who knows what someone else was doing.

  58. Avataaar/Circle Created with python_avatars Kolten Catron says:

    JUST GET A HEAD MOUNT OR CHEST MOUNT LOL WHY MAKE IT SO DIFFICULT ON YOURSELF TO USE JUST ONE HAND

  59. Avataaar/Circle Created with python_avatars BillFromAZ says:

    I had noticed that the key locking only seems to happen when the vehicle is cold (hasn't been running).

  60. Avataaar/Circle Created with python_avatars mactech1 says:

    You didn't consider the temperature while trouble shooting. The defect only seemed to happen when cold. I tried hollering at the computer screen, but it didn't help. I'm a retired electronics tech, and for the most part, your electronic troubleshooting technique is very good.

  61. Avataaar/Circle Created with python_avatars Jay Renner says:

    Yellow and Blue probe leads……..<neck vein starts throbbing again>

  62. Avataaar/Circle Created with python_avatars Mark Dresser says:

    Blue and Yellow test leads in honor of Aug 24 Ukrainian Independence Day?

  63. Avataaar/Circle Created with python_avatars Joseph Smuckatelly says:

    WD40

  64. Avataaar/Circle Created with python_avatars Chris Thompson says:

    There were never screws in the bottom of the bezel from the factory.

  65. Avataaar/Circle Created with python_avatars Les Reeves says:

    Why did you not spray some electrical cleaner on that fuse box (give it back to customer to test over a period of time to see if the fault re-occurs?)

  66. Avataaar/Circle Created with python_avatars Squiggy G. says:

    Reeeeeee you didn’t check blinker fluid before using turn signal, again 😎

  67. Avataaar/Circle Created with python_avatars Sam Jackson says:

    👍

  68. Avataaar/Circle Created with python_avatars Scott Hassett says:

    pickup truck. for picking up trucks. that must be right

  69. Avataaar/Circle Created with python_avatars chris l says:

    i always wanted get a hummer. I'm curious anyway to bypass ignition lock i had a 2002 chevy s10 blazer i was always able pull key out ignition even when running which i did like.

  70. Avataaar/Circle Created with python_avatars kenneth bode says:

    sometimes you have to get the hammer out. You may have restored the connection when you put the top of the fuse block back. Bring it back when it acts up

  71. Avataaar/Circle Created with python_avatars LaDonna Ghareeb says:

    The key sticking must be a GM trait. Our 2007 Equinox does the same thing, but It's intermittent, and it makes us crazy!

  72. Avataaar/Circle Created with python_avatars greg wentz says:

    ray had 2002 trailblazer key would not come out a plunger in the steering colum hooked to colision sensor through trans is problem can manual wire open key will then work

  73. Avataaar/Circle Created with python_avatars thomas krakowski says:

    I love your videos I learn so much it was nice to see you in this video thank you so much for your service you are great man your friend tom Krakowski

  74. Avataaar/Circle Created with python_avatars Charles Murphy says:

    Those things are money pits.

  75. Avataaar/Circle Created with python_avatars tin pin says:

    Good god, all that fake wood! Is that a 1986 Cadillac Eldorado or a Bummer H2?!

  76. Avataaar/Circle Created with python_avatars Daddio says:

    Intermittents…the bane of any technician

  77. Avataaar/Circle Created with python_avatars Andres Quiñónez Ramirez says:

    A mixture of a Cadillac and Chevy interior

  78. Avataaar/Circle Created with python_avatars Bri5150 says:

    I owned a 2003 H2 and loved it for the first 5 years or so. Held on to it for 12 years and finally sold it. I live in Boston so the underside was solid rust with all the road salt. And I mean total rust all over. Lots of $$ to keep replacing fuel and brake lines. Was just as happy when I sold it for parts.

  79. Avataaar/Circle Created with python_avatars mark ket says:

    The most common fault is gonna be that shifter switch in that console and you never pulled it apart and looked at the connector or check the switch for function, people spill pop and coffee down there all the time

  80. Avataaar/Circle Created with python_avatars George Travers says:

    Why not spray DeoxIT® on the pins? It works great for "Pine Hollow Auto Diagnostics".

  81. Avataaar/Circle Created with python_avatars erikkirby1 says:

    Great vid as always! the aftermarket obd 2 plug looks like pin 6-14 can line for the aftermarket radio…

  82. Avataaar/Circle Created with python_avatars Some__Jerk says:

    You know what's worse than fake wood trim? Obvious fake wood trim.

  83. Avataaar/Circle Created with python_avatars Marc Stewart says:

    Just another gm P.O.S. lol

  84. Avataaar/Circle Created with python_avatars Jared Hilt says:

    I have a 2015 Chevy Colorado and when I throw the truck in park and turn it off in a fluid motion, it tends to not release the key. I have to turn the truck back on, take it out of park, put it back and park easily, making sure that the shifter moves as far as possible, and turn the truck off a second later. It's annoying, but as long as I am not in a hurry I am usually okay. Haven't seen the whole video yet, but I would try to put the vehicle in park, but not as thoroughly as you would since you are diagnosing it. It may not provide power again unless you put the vehicle in park while the vehicle is on. In my truck when this issue arises, merely moving the shifter out of park and back does not fix the issue.

  85. Avataaar/Circle Created with python_avatars Wade Gaskins says:

    Only at the 8min mark watching this and thinking that all the issues could be from that thing plugged into the OBDII plug.

  86. Avataaar/Circle Created with python_avatars Stas91 says:

    2008 and 2009 were the last 2 years of the H2. For those final two years, they dropped the LQ4/4L65 combo for the 6.2 L92 and 6L80 combo.

  87. Avataaar/Circle Created with python_avatars Robert Butts says:

    Wow that would drive me to drink

  88. Avataaar/Circle Created with python_avatars Ron Winter says:

    Thanks for your great video I fixed my car and cleared the code where a dealership world have costs a lot thanks again

  89. Avataaar/Circle Created with python_avatars ThacMan says:

    I enjoyed this video👍

  90. Avataaar/Circle Created with python_avatars Daniel Ventura says:

    I always preferred throttle body injection, I don't like direct injection with a high pressure pump like in my Focus. I think of carbon buildup though I'm told that isn't a problem in the Ford 2.0. I don't believe that

  91. Avataaar/Circle Created with python_avatars RezaQin says:

    You know what they say, Ray. Stay strapped, or get clapped.

  92. Avataaar/Circle Created with python_avatars E C says:

    Oh, I see the problem: it's a Hummer.

  93. Avataaar/Circle Created with python_avatars RANDYLAYHE says:

    wish they had the hood latch on internationals the garage (CORPORATE) forgets to latch the latches 2x so far at highway speeds not so fun hood flying up

  94. Avataaar/Circle Created with python_avatars Bekim says:

    I bet Ivan is watching this video and chuckling.

  95. Avataaar/Circle Created with python_avatars Patrick says:

    Heard the h3 has a 5 cylinder like the Colorado

  96. Avataaar/Circle Created with python_avatars Robert Page says:

    I have NEVER been bored with any of your great instructional videos.
    We here in YT land are always just looking over your shoulder and observing like peeping Toms. Which reminds me, we never see you go for lunch or take a bathroom break.
    Just curious. I'm sure YT would shut you down on the Bathroom show. HA!
    Just kidding.
    Anyway, I learn much even when you don't find what you're looking for as it is the process that is so valuable to track.
    With all that under carriage frame corrosion, it was quite logical to find it elsewhere as you did and electrical components are always suspect when corrosion is about.
    Great Show!!
    Looking forward to the rest of the fixes.
    I do wonder if the customers of the vehicles you work on see all that you go through in dealing with their vehicle's problems.
    Maybe if they did, they might have a better idea of just how involved and just what an excellent and honest mechanic they have hired.
    Does the car mechanic's union have such an awards program for people like you?
    Like the Academy Awards and the Golden Globes, do you get a "Golden Wrench" and a dinner?
    Would like to see you walk the "Black Carpet" as you enter the event wearing your uniform.
    Ok! Later!!!!!!!!!!!!!!

  97. Avataaar/Circle Created with python_avatars Todd Lynch says:

    Someone overpaid for a gaudy Tahoe… They could have saved their money, purchased an ACTUAL Tahoe, dropped in a crate LQ4/LQ9, and had money left over for all the maintenance those things need over their lifetime. Or just got the Yukon Denali with the LQ4 from the factory. Or the Escalade with the LQ9 from the factory. And it would have been the exact same truck (minus the Hummer's gaudy looks).

    And the '08 is right in the middle of the worst years for full-size GM trucks.

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