Hello, I am hoping someone here might have an answer to this problem. We have a 03 H2. The steering has been making this awful sound (squealing like sound) whenever we take a turn. We had the dealership look at it, change a few parts etc. Of course it has been nothing that they have fixed so far. Now they are telling us that they only thing left that could be making this noise is the steering box. The most expensive part so far at $700 not including labor! Has anyone here ever had this problem with their Hummer before? The truck has never been abused, it just started making the noise one day. Very embarassing when you are driving through a parking lot. I just didn't know if it is a common problem with the 03 H2's. Thanks for reading my post!

 

not common that i'm aware of, but i've had every component in my steering changed at least once, although never for any kind of squeaking or grinding sound. could also be your hub, if you're hearing it when driving slowly. you may want to take it to a reputable 4wheel drive shop and have them look at it. better to pay for a checkup first than just plunk down $700 at the dealer when they apparenlty don't know what they're looking for. this is why i love my extended warranty so much . . . . .

 

I am a new owner and have a question in regards to steering as well. I noticed that sometimes when the vehicle is at a complete stop the wheel will not turn? Like there is not power steering. Does this have to do with the Hydro-Boost technology that the H2 uses?

 

Come on, Nobody has an answer to this simple question??

 

You want an answer, you need to provide more details. Are your tires stock size? Have you checked the steering fluid, the level and status (this **** can burn just like tranny fluid, same stuff really)? Are any of your steering components loose or bent? Ditto with the power steering hosesx 2(if you kink one, not good)? And last, but least, what is the condition of your belt? GM had steering box problems, but that all predated the H2.

 

Doc,

Thanks for the Heads up. The tires are much larger than Stock they are 37x18x12.5 BFG M/T's. I have not checked the fluid levels or the hoses yet. I will do that today on my lunch break. The belt is in great shape on the engine. I will get back to you on the fluid and hoses. I only ask this questions because I am not to familiar with my Hummer yet or the HydroBoost system. I had a 99 Durango 5.9 and knew that vehicle inside out backwards and fowards. So any help to get me knowing my Hummer better is much appreciated!

Thanks,
Eric

 

I thought those boots looked quite meaty. Very nice! Post back and we'll sort it out.

 

Mine is stock and at a dead stop it is noticibly harder to turn to pull out of a spot.... but... tap the gas and speed the motor up and steering is right there same as on the highway cruising....

It doesn't bother me because I have never been the type to put that kind of stress on my wheels, tires, and steering componets.... if I can move forward or backward to make it easier to turn then I do...

 

Those tires are stressing out the PS fluid from heat build-up. This was always a problem for the C4 and up Corvettes with their close to 12" wide tires (my 275-40-17 BFG Comp/TA's measured almost a foot across). Gm solved the problem byadding a factory PS cooler. You would be wise to get this cooler from a junkyard AND replace the fluid with a full synthetic like Red Line PS fluid., every 10k-15k. If you have a auto you really need a cooler there too.
These tires must weight about 90-95 pounds each? That is a LOT of rotational mass and it is rough on everything.
I hope it is a simple thing like this.
Our Subaru with 65k miles started to make this noise only when the steering wheel was turned fast left or right. I checked the fluid which looked bad and replaced it with a full synthetic ATF (Subaru calls for an ATF) and no more noise.

 

So I did check the lines the other day and did not see any kinks. I was not able to check the fluid level.

Also the H2 does have a PS cooler and ATF cooler right??