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My Hummer H2 keeps flashing codes co550 and co896. What does this mean and how do I correct the problem.

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 2003 Hummer H2 check engine light is on steady

This is Obama's new energy policy to to save gas !

Seriously, go to Autozone and they'll read the code for free.

Posted on Jan 27, 2009

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SOURCE: 2004 hummer h2 leaks water from roof over front

Seal all the lights on top. Mine flooded from the water running down the light harness wires. Used clear rtv sealant and fixed it. You will have to remove the seal the two larger lights on the corners.

Posted on Jul 06, 2009

abdoush
  • 12 Answers

SOURCE: top speed of h2 hummer

it's a heavy car, so the H2 does 0-60 in 8.2 seconds.
and Max speed is 100 Mph

Posted on Sep 08, 2009

  • 1 Answer

SOURCE: I need to remove the luggage racks from my 2007 Hummer h2 SUT

I have the same vehicle and was able to remove mine with the following steps: 1) remove light behind each rear of luggage rack rail using phillips screwdriver (one screw each side). 2) remove molding underneath each light using T20 torx driver (2 screws each side). 3) Loosen cross rails nobs. 4) Side cross rails off of roof.

Posted on Dec 27, 2009

dttech
  • 4803 Answers

SOURCE: The reduce engine power message

The Powertrain Control Module (PCM) is shutting down your throttle body control for some reason and limiting how much throttle you can apply. The only way to find out why it is doing this is to scan the PCM for Diagnostic Test Codes (DTCs) and diagnose any existing codes accordingly. It is very likely to be caused by a fault in your throttle position sensor or accelerator pedal position sensor circuits.

There is a Technical Service Bulletin (TSB) for your vehicle which covers a known problem with reduced engine power and sets DTC P2138. The known problem is that the Accelerator Pedal Position (APP) sensor circuits are being infiltrated by water intrusion into a connector and causing erratic voltage readings at the PCM. It is TSB reference # 07-06-04-019D

Posted on Jul 18, 2011

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1 Answer

Battery light stays on after key is removed on hummer h2


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.

Oct 12, 2016 | 2004 Hummer H2

1 Answer

At what RPM 1st gear should shift on a H2 Hummer 2003


well is that hummer that a 2 ton or 4 ton vehicle ?

would take a lot of revs for first gear to make it roll from a standing start
think it will be fitted with an 6 speed automatic transmission

guessing only from my heavy vehicle driving experiences
first should change below 3000 rpm

if transmission was slipping in first gear you would know

suggestion
ring up the local hummer service division for the correct answer





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Oct 12, 2016 | 2003 Hummer H2

1 Answer

Engine light Hummer H2


it means that you would either go to a auto shop to get the motor looked at or check the oil in the hummer

Jun 10, 2013 | Cars & Trucks

2 Answers

I began to have issues with my '05 Hummer H2 a few weeks ago.....


P0496 = "Evaporative emission system high purge flow"


At the dealership, we get a lot of complaints like yours and they all started with running too low on fuel or running out.


Start with replacing the fuel filter and get back to me.


Running low/out tends to suck up micro trash from the bottom of the gas tank and that gunk clogs the fuel filter.

Feb 02, 2013 | 2005 Hummer H2 SUV

1 Answer

NEED TO REMOVE DOOR PANEL ON A 2004 CHEVY AVEO


Click the link below:-----Door Panel Removal?

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How to remove the door panel to install a new window regulator?
http://howtobyme.blogspot.com/2011/08/how-to-remove-door-panel-to-install-new.html


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Hummer H2 Door Panel Removal? http://technoanswers.blogspot.in/2012/07/hummer-h2-door-panel-removal.html Hummer H2: How to remove Front Door panel? http://www.howtobyme.blogspot.com/2012/07/hummer-h2-how-to-remove-front-door.html 2009 Hummer H2 Door Panel Removal http://schematicsdiagram.blogspot.in/2012/07/2009-hummer-h2-door-panel-removal.html

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how to remove window motor on driver side door panel?
http://technoanswers.blogspot.com/2011/08/how-to-remove-window-motor-on-driver.html


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ford explorer window motor, regulator and door panel removal?
http://technoanswers.blogspot.com/2011/02/ford-explorer-window-motor-regulator.html


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Keep updated for more help.

Nov 19, 2012 | Cars & Trucks

2 Answers

My 2003 H2 engine light flashes but no trouble code.


When the light flashes it means you have a catalytic damaging misfire happening.. Most likely a coil or spark plug issue but could be something else. Get it fixed ASAP because if you toast your cat its going to get expensive

Aug 10, 2009 | 2003 Hummer H2

1 Answer

2003 Hummer H2 overheats while idling in Park


NED TO HAVE THE CODES FOT THE CHECK ENGINE LIGHT READ.THE CODE WIL LEAD U IN THE CORRECT DIRECTION.GET BACK TO ME W/THE CODE.

May 13, 2009 | 2003 Hummer H2

1 Answer

Hummer H2 SUT DTC Code C0563


C0563 - Calibration ROM Checksum Error
Not sure what it means but thats what I found when I looked it up

Oct 27, 2008 | 2005 Hummer H2

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