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Hummer H3For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.
The H3, thanks to living in LA, has seen very little driving since early 2020 due to the lockdown that lasted through June 2021.
Even after, no major driving, maybe 200 miles per month, tops.
Noticed an oil leak under the vehicle in June, just a few drops, so as soon as things were opened brought it in for an oil change, etc. Laundry list of issues, but the leak was still there.
Today it is found that it is a worn gasket which they have to get the part, etc. it is now on, but they found that the radiator is leaking.
The radiator was replaced in 2014 and then again in 2017. So, are you guys experiencing a radiator that has even less life than an Apple iPhone battery?
If so, is there a radiator I can get that doesn't have to be changed every few years?
H3 has a total of 117K miles on it. No off roading. What is the term, boulevard princess?
There are three common causes of radiator failure that can result in fluid leaks that lead to critical engine overheating.
Perforations
A stone or other road debris thrown up can penetrate the radiator causing a leak. Replacement of the radiator is usually the only reliable, long-term remedy in this case.
Corrosion
Corrosion in radiators usually occurs as the result of an incorrect concentration of additive in the coolant water, or if no additive is present in the coolant. Corrosion can affect any part of the radiator, but it most commonly occurs in the areas where the plastic reservoirs are crimped onto the aluminum core. In most instances of corrosion, the damage cannot be repaired reliably, and the radiator must be replaced.
Excessive vibration
If radiator mounting brackets/rubbers/bushings are worn, damaged or broken, the radiator can be subjected to excessive levels of vibration. Over time the vibrations can cause fluid leaks between the plastic reservoirs and the aluminum core. Again, the remedy for this is to replace the radiator.
I get that, but this thing sees highway and local streets.
I recall, years ago, that H3 owners were seeking an alternative radiator as the GM ones apparently suck.
Originally Posted by hummerz
What causes a radiator to fail?
There are three common causes of radiator failure that can result in fluid leaks that lead to critical engine overheating.
Perforations
A stone or other road debris thrown up can penetrate the radiator causing a leak. Replacement of the radiator is usually the only reliable, long-term remedy in this case.
Corrosion
Corrosion in radiators usually occurs as the result of an incorrect concentration of additive in the coolant water, or if no additive is present in the coolant. Corrosion can affect any part of the radiator, but it most commonly occurs in the areas where the plastic reservoirs are crimped onto the aluminum core. In most instances of corrosion, the damage cannot be repaired reliably, and the radiator must be replaced.
Excessive vibration
If radiator mounting brackets/rubbers/bushings are worn, damaged or broken, the radiator can be subjected to excessive levels of vibration. Over time the vibrations can cause fluid leaks between the plastic reservoirs and the aluminum core. Again, the remedy for this is to replace the radiator.
Got mine in 1 day after ordering and it is well built, same weight as factory and I only needed to transfer the trans lines clips, ac condensor nuts, trans vent tube clamp, and rad cap. 1.5hrs labor and it is in like flynn...
The radiator was replaced in 2014 and then again in 2017. So, are you guys experiencing a radiator that has even less life than an Apple iPhone battery?
If so, is there a radiator I can get that doesn't have to be changed every few years?
What was used for the replacement radiators? You get what you pay for.
What was used for the replacement radiators? You get what you pay for.
Yet, many including you paid over $500.00 for a replacement!
Originally Posted by Doc Olds
My first one leaked from the passenger side tank, must have had a pin hole in the weld somewhere. It would run down that side and drip from the bottom. My replacement has been good since I swapped it in on 12/26/16, no issues.
I plan on having the first one repaired at the local radiator shop and either keep it as a spare.
Originally Posted by hummerz
Btw, I just found that the radiator I installed over 7yrs ago has come down in price:
Therefore the H3 is NOT a "money pit" as H32006 stated? I'm now at around $175.00 month for purchase+repairs+maintenance. Yet, GM keeps insisting I take delivery on a new ride (5.3l premium package)at $2k(after my loyalty discount) per month x36>>> for purchase alone. Not so fast my friend, my H3 still starts/runs/drives perfectly!
Money pit...
