Question about Hummer H1

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I am a certified master technician with 12 years experience. i just took on a 2001 hummer h1 side job, i have fixed multiple coolant leaks on it, replaced almost the whole steering and suspension in the front, and that was all fairly easy and standard repairs. i figured i would save the back brakes for last since they would be the easiest, lol. if anyone out there can just give me some pointers on doing these rear brakes i am only doing pads, there just isnt any room back there, i am also doing this on the ground. any assistance would be greatly appreciated. thank you.

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Go to this site for detailed info, hope this helps !

Posted on Mar 20, 2011


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1 Answer

I received a performance ship, I need to install it correctly. To do so I need to identify the wires on the IAT/MAF sensor. do you have a diagram. I believe it is the pink and brown wire.

First, you forgot to mention what kind of vehicle you are working on...YEAR, MAKE(well, it did say Hummer), MODEL, ENGINE SIZE.

Second, I highly recommend not messing with that will wish you hadn't. I have had to clean those messes up too many times. If your vehicle is not fast enough, go buy a Bugatti Veyron or's much easier, much faster and will come with a warranty!

dttech -
ASE Certified Automotive Technician
36+ years experience

May 11, 2011 | Hummer H3 Cars & Trucks

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youre going to need to take it to either a hummer dealer or a reputable and trusted transmission shop. these are general motors transmissions and do not cost a lot to rebuild. the only difference in price is whether on this year you have the 350cid gas or 6.5 na motor. wish i had better news but remember that transmission is constantly trying to move 8500lbs. service every 15- 20,000 miles. let me know if further assistance is necessary. i am certified with am general.

Dec 05, 2009 | 2004 Hummer H1

1 Answer

Intake is leaking coolant on my 2001 blazer. How big a job is it replace in hours and est. cost? Thanks

it happened on my 97 intake manifold can run you $90 or more but have a weekend to do this while folks with a shop may say 12-14 hrs it took me 2 days have a power steering pulle puller available this added 6 hours to the job easy. dealership wanted 700

Sep 25, 2009 | 2001 Chevrolet Blazer

1 Answer

What is the adverage time to replace H1 brakes 1998 hummer

Depends on your driving habits. One of the best indicaters if you have never added brake fluid is the level in your master cyclinder. Rotors: if you feel a pulsation in the brake pedal under normal breaking.

Sep 06, 2009 | 2002 Hummer H1

1 Answer

Over heating

U have leaking head gaskets, all to common on the 3.8 V6
My experience: 20 years as a Ford dealer mechanic, 10 years as a Ford certified Master Technician.

Jan 15, 2009 | 1994 Ford Thunderbird

3 Answers

1995 H1 Problem

hi raymond,

it could just be the overflow of the air conditioning. it could just be plain water which is the water condensate from the air conditioner.

look at the engine compartment firewall, find that hose and insert a long stick that can be inserted and you might un clogged the drain line.

if you are loosing coolant from the thing you are saying and you are definite that it is coolant water and not just plain water, then the heater core could have gone bad and leaking and you need to bring it down for repair or replacement.

have you been adding water to your radiator every time you use the car? if not, then im 90 percent it could just be a clogged air conditioning drain.

tnx 4 using fixya,


Nov 07, 2008 | 2006 Hummer H1

2 Answers

Losing coolant

These cars are notorious for intake manifold gaskets leaking also. May not show signs of the water/coolant mixture mixing with the oil for some time. Just speaking from experience.

ASE Master Tech with L1 and X1 certs. Chrysler Level 3 Silver Tech and Nissan Scope Technician- over 12 years experience.

Oct 30, 2008 | 1999 Pontiac Grand Am GT

2 Answers

2001 xtera loosing coolent but don't know where from

These engines had some issues with headgaskets leaking coolant externally. It is a small leak and usually only when hot, so there is no puddle because the coolant evaporates before it gets off of the block.

Get under the vehicle and, using a light, look at the rear face of both cylinder heads. If you see a greenish-white stain, that's the issue. This is a very labor-intensive job and should only be attempted by a qualified technician. I don't know your experience level, so I can't say whether you should try this yourself or not.

If you don't see any staining, a cooling system pressure test would be in order.

If you're located somewhere in central Pennsylvania, I could probably help you out.

Hope this is helpful!

Nissan Scope Technician- 10+ years experience in Nissan dealership.

Oct 29, 2008 | 2001 Nissan Xterra

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