20 Most Recent 2005 Hummer H2 Questions & Answers

I've had air bag suspension on my 2007 Hummer H2 since it was born. I drive from coast to coast every year, go off-roading in the Mojave and Sonora Desert around Las Vegas where I live in extreme head and wet/dry conditions and in 12 years of driving my H2 with 140,000 miles, I have only replaced the air bags (1) time at a cost of $220 for the set. I installed them myself in 1 hour, super easy job, so this idea that the bags and compressor are guaranteed to fail as it it happened all the time is pure ignorance. $200 every 12 years in my case is not a big expense at all. IN FACT, the greatest expense I suffer in my Hummer is not even gas mileage, I often get up to 19 miles per gallon on the highway, cruise control on at 70 mph, the SWEET SPOT for my Hummer. The greatest expense has been WASHING THE TRUCK. I pay $70 to $100 to have my truck washed every three weeks. It looks and runs as good today as it did when it rolled off the line 12 years ago.


2005 Hummer H2 | Answered on Jul 21, 2020

they have a controll module afixed to the wiper motor itself. these modules have been an issue for gm for some time. they are very simple to replace and "usually" fix the issue.

2005 Hummer H2 | Answered on Feb 05, 2019

plz see a technician or hummer expert, h2 is not a toy to play with yourself for repairs

2005 Hummer H2 | Answered on Jan 08, 2019

Pull the battery out and have it load tested, sounds like the battery was on its way out to start with.

2005 Hummer H2 | Answered on Jun 30, 2017

A misfire could be caused by a bad , clogged fuel injector . A vacuum leak . How are you reading a misfire ? A code ? A dirty mass air flow sensor can cause misfires . Low fuel pressure ,clogged fuel filter . When you replaced the fuel pump did you replace the ceramic sending unit resistor card with a new one ?
Fuel Gage
The IPC displays the fuel level as determined by the PCM- engine computer. The IPC -instrument panel cluster receives a class 2 message from the PCM indicating the fuel level percent. The fuel gage defaults to empty if:
The PCM detects a malfunction in the fuel level sensor circuit.

The IPC detects a loss of class 2 communications with the PCM.

When the fuel level is less than a pre-determined value, the low fuel indicator illuminates.
Reviewing the fuel system description will further explain how the system functions. Refer to Fuel System Description .
Do you know about class 2 serial data communication .

2005 Hummer H2 | Answered on Dec 25, 2016

First check the drive shafts(vibration). Universal joints could be bad. Best to have it off the ground. No pressure from the tires and transfer case/transmission. Service 4x4 has to go on a scanner to get codes. Check fuses first.

2005 Hummer H2 | Answered on Dec 16, 2016

starter wont put you in limp mode --need to have the vehicle scanned for trouble code --

2005 Hummer H2 | Answered on Oct 06, 2016

Hello Mark,
What year , make, model truck do you have?

2005 Hummer H2 | Answered on May 16, 2016

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