However, here are a few things to look out for: 1) Windshield Wiper Circuit Board ShortĪ common problem with the H2 is the shorting of the windshield wiper circuit board. With regular care, these beauties are reliable and will always get you to the destination. The Hummer H2s don’t seem to have any major issues. And if it is, go for one that has got a replacement engine. You want to check that the model you are buying does not have this problem. But not all the affected vehicles may encounter the problem during the warranty period.
Hummer h3 reviews cracked#
If you plan to buy H1s from the 96-2000 stock, you might have heard they are susceptible to a cracked engine block.ĭuring manufacturing, there was a flaw in the number eight cylinder casting of the turbo diesels at GM’s plant.įortunately, AM General replaced faulty engines under warranty. So while you may not have many issues with the vehicle, getting it to serve you in excellent condition for a long time might be expensive. But it is also more expensive and parts are difficult to find. The 2006 Alpha is superior to all other H1s. This made it ideal for on-road use but not the best on the trails. The TT4 wasn’t a match for the trusty Torsen II in earlier editions and lacked the legendary traction of its predecessor. While the model had new heating and cooling systems and exceptional performance, it used an electronic traction system called TT4. If you are buying a 99 H1 model, check the traction system. This made the Hummer to struggle at high altitudes as the engine runs out of power even while on the road.įaulty heater cores used in the 94 Hummer can cost up to $3,000 to replace, so you want to make sure you are not paying for replacements. Another issue with the 94 model was that its NA diesel engine was underpowered. The heater core was susceptible to failure but AM General replaced faulty systems.
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In the 1994 model, the new HVAC system installed to correct the heating issue of earlier models was not up to the job.
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However, they were easy to maintain because they had no digital controls. The heat created a lot of problems for the cylinders and made the interior uncomfortable since it lacked air conditioning. The first H1s, i.e., the 92-93 models suffered serious wear and tear because of their poor heat insulation. So long as you take good care of the truck, it will serve your reliably even with over 100k on the odometer. However, earlier versions were not as lucky. Everything about the vehicle is excellent including the heavy-duty Duramax 6.6-liter Turbodiesel, exceptional AC-Heating, improved traction, reinforced suspension, more fuel capacity, and impeccable creature comforts. The 2006 Alpha H1 is the most reliable H1 Hummer. Look into our article which reads about Hummers & Depreciation: Here’s What To Expect 5 Typical Problems With The Hummer H1 Different model years have distinct issues that will require regular attention.Ī Hummer is difficult to maintain except you are doing the work yourself.īut not everybody has the skill-sets except maybe for veterans who served with the truck or highly skilled civilians.īelow, we look at the common problems that can reduce the reliability of your Hummer.
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However, the Hummer is maintenance intensive. In reality, the vehicle has far better performance characteristics on and off-road compared to trucks in its class. In fact, the Hummer H3 could do 13 mpg city, 18 mpg highway, which is far better than the H1’s 8-10 mpg combined.Ī lot of the misconception about the Hummer stems from the bad press from eco-activists. Later models have improved fuel efficiency despite their gas-guzzling reputation. These trucks will go anywhere you want them to go including high altitudes, streams, deserts, and everything in between. The best places to appreciate the strength of the Hummer are enthusiasts’ forums where people share the problems and challenges they face with their beloved workhorses.Įven the H2 and the smaller H3 Hummers are not your typical SUV because they have bigger and more powerful engines. You need professionals with special skills to handle their complicated systems. You won’t find their parts lying around your street corner auto repair shop.Īnd the average mechanic doesn’t have a clue about any of the Hummer’s headaches. The first Hummers were military vehicles adapted for civilian use. 1) Windshield Wiper Circuit Board Short.