Tl*the contact owns a 2006 hummer h3. The contact was pulling away from a traffic light when the engine began to exhibit a low power response. The vehicle was taken to an authorized dealer where a diagnostic test was performed; the technician was unable to detect a trouble code and informed that the problem was a manufacturer design which was a common issue. The vehicle was taken to two different independent mechanics for diagnosis. The vehicle was not repaired. The failure mileage was approximately 62,000.
2006 Hummer H3 engine complaints
Page 4 of 4: complaints 71 to 87 of 87, newest first, as owners wrote them.
I purchased my 2006 hummer h3 in february 2006. After driving it for approximately 5k miles, the check engine light came on and the vehicle felt like it was losing power. I immediately took it to the hummer/gm dealer. I was told that the engine cylinder heads needed to be replaced and that there was a problem in the manufacturing process. I was in shock that I had that problem with a new vehicle and I requested that I get a new replacement vehicle because I did not want the "lemon" they sold me with a defective engine. I was assured I had nothing to worry about and that the vehicle would be repaired (under warranty of course) and I would not have the problem again. In november 2010, months after my warranty had expired, my vehicle had the same problem. In fact, it is at the dealer now and I still do not know how much it will cost me to repair it. The only reason it may be repaired at no cost to me is because I paid $2650 for an extended warranty from an outside company (which expires soon). However, my extended warranty company still needs to determine if it will cover the repairs. I did my research and found that many (too many) 2006 h3s have had the same problem with the engine and it is a manufacturing problem that gm is very aware of. However, despite numerous complaints, gm refuses to take care of the problem or issue any bulletin. This is a huge safety issue. If the engine misfires and my vehicle breaks down, it can easily cause an accident and/or rollover, and very well cost me my life and the lives of others. Gm needs to recall these vehicles and issue a safety bulletin, and replace all affected vehicles.
2006 hummer h3 47000 miles only 2 months out of warranty. Check engine light came on, noticed rough idle. Dealer says must replace head due to misfire and trouble with cylinder 5. Dealer recognized common problem with this engine, but refused to do anything but discount the repair from 3200 plus tax down to 2800. This appears to be same engine problem as was covered for the colorado, but gm refuses to help with h3!
I own a hummer h3 the other day the aircondition stop working I look at the heater blower the links to the air conditioner the wires and resistor were frayed and extreme hot. I had to un hook it so it won't start a fire. I am not the only person with this complaint and I read other peoples story's there should be a recall, I was told to replace it could cause a fire.
Tl*the contact owns a 2006 hummer h3. The contact stated that she noticed a puddle of radiator fluid underneath the vehicle after it was parked. The vehicle was taken to a local mechanic who stated that the radiator needed to be replaced. Prior to the failure, the contact noticed the check engine light illuminated on the instrument panel. The vehicle had not been repaired at the time of the complaint. The failure mileage was approximately 50,000. The current mileage was approximately 76,000. Updated 08/17/10. *lj updated 08/23/10
Called by customer complaint of rough idle and misfire. Vehicle is a 2006 hummer h3 with the l52 I-5 cylinder engine. Mileage is 77675 diagnosis revealed cylinder #5 was bad. Further testing revealed water in the oil. Final diagnosis blown head gasket. This is a recurring problem with this engine and vehicle. Dealer refused to repair though it is the same engine gm issued a technical bulletin calling for changing heads on the colorado.
1. During normal driving and idleing I started seeing / hearing the engine misfire and illumination of the service engine soon (ses) I would experience abrupt loss of power or surging or idle roughness. After research and dealer diagnosis we found the early hummer h3 has the same atlas l52 I-5 engine as the 04-05 chevrolet colorado. The 04-05 cheverolet colorado atlas l52 I-5 engine was given a special coverage for soft engine intake valve seats, extended the warranty to 7 years and 100,000 miles under tsb 07123 the federal safety agency # 10022722. To fix the problem the head is replaced with one with harder valve seats. The 2006 hummer h3 should also be covered by this bulletin. Gm has refused to cover my h3 with this problem even though it has the same engine simply because the federal safety agency # 10022722 does not specifically say hummer h3. My gm case # 71-805764673.
Tl*the contact owns a 2006 hummer h3. He stated that the check engine light illuminated on the instrument panel. The vehicle was taken to the dealer where a diagnostic test was performed producing codes p0300 pertaining to a misfire at idle due to a leaking intake valve. He also stated that the vehicle needed a new cylinder. There were no recalls and the manufacturer would not assume any liability for the failures. The warranty was no longer valid. No repairs were made to date. The current and failure mileages were under 54,492.
I recently purchased a 2006 h3. From the day I bought the car I have noticed a weird idle when the vehicle is warming up. Until recently I thought it was the way the vehicle ran normally. I decided to have the vehicle inspected by a mechanic. After being inspected the mechanic noticed the vehicle's valves were not seeded right from the factory, which has caused the misfire, which causes the weird idle. I now am in the process of contacting hummer to see if there is a solution to the problem. The vehicle has only 61870 miles on it and I don't feel this should have happened this soon in the vehicles life. Service bulletins have been warranted and I would like to find a reasonable solution to the problem.
I have a 2006 hummer h3 with a little over 15,000 miles on it. There is an issue of "bad cylinder heads" in these 3.5l i5 engines and gm has not stepped up to the plate for a recall. Another cylinder head has been ordered for my vehicle and will be fixed under warranty. What happens when my warranty runs out a year from now. I am not crazy about a dealer tearing down my engine at this point. It has not been broken in yet. I think the whole engine should be replaced. I feel gm knew of this all along and built these SUV's anyway with the hopes that the motors will last until the warranty has expired.
Purchased a 2006 hummer h3 from the seller in this complaint. I paid exactly $23,250 all cash for this vehicle. He actually drove the vehicle to new jersey from mass. To my residence. The vehicle appeared to be in excellent condition, as it only had 14k miles when I bought it only 3-month's ago. One would hardly think of "hidden" issues at that mileage. In any event, I have had repairs to the rear and front differential, as it had a leak and the front end was out of alignment. The most disturbing thing was this seller lied to me and misrepresented the "true" or actual condition of the vehicle. Unfortunately which would surface after he left with my $23,250 in cash! I would e-mail the seller and told him he misrepresented himself and the condition of the vehicle and how he apparently abused it. More importantly, I discovered "excessive" rust underneath this vehicle. Because these conditions were not divulged to me by mr. Johnson, I am having a hard time selling the vehicle that practically cleaned out all of my savings. He claimed this truck was garaged kept and that he did no off road riding. This apparently is totally untrue, as the car would not have as much rust as it is loaded with for a 2006! So, can you tell me what recourse, I may have as a the buyer, besides hiring a private attorney who I can't afford, as I am on permanent disability. There must I something my I can pursue under any state or federal consumer laws, especially, since the vehicle is still under warranty by general motors.. I should also add that I am having difficulty with a local hummer dealer "royal hummer" in florham park, who seemed reluctant to address the many issues I am having with this hummer! I would also appreciate if you can forward this complaint to general motors corporation, in michigan, as they should know I am having difficulty with dealers wanting to honor,as they should, any warranty work! I am prepared to file every complaint I could to get restitution for this apparent.
Tl*the contact owns a 2006 hummer h3. While idling at a stop light, the accelerator pedal automatically extended to the floor and the vehicle sped forward. The contact had to depress the brake pedal with both feet to prevent crashing into the preceding vehicle. The vehicle then went into limp mode and would not exceed 20 MPH. The vehicle was towed to the dealer and they replaced the throttle body assembly. The dealer stated that this was a common failure with these vehicles caused by a manufacturer defect. General motors acknowledged the failure and stated that they were replacing the unit with a different part that they believed would eliminate the failure. The replacement would be at the contact's expense. The manufacturer stated that they have not considered issuing a recall because they are repairing the defect as it occurs. The failure and current mileages were 20,800.
A rough idle, chugging / running concern may be encountered with a p0014 dtc. Possible clogged fuel injectors.
Dt*: the contact stated while driving 40 MPH on city streets, the vehicle ran and idled rough. The vehicle was eventually driven to the dealer who determined the cylinder head and valves needed to be replaced.
Dt*: the contact stated while idling at an intersection, the check engine light illuminated and on star was called. There was an advisory to drive the vehicle slowly to the nearest dealer. Diagnostic testing was performed and they determined a cylinder was leaking and the head and valve needed to be replaced. 12,000 miles after the first repair, the identical scenario recurred. When the vehicle was taken to the dealer, they determined the diagnostic code was the same as the previous visit. Another cylinder was leaking and it needed a head and valve job again. The service manager expressed the reason for the recurrence was due to the design of the head which was installed when the vehicle was manufactured and during the replacement. The manufacturer was contacted, and determined that there was now a new part for replacement. The contact was concerned that the original part and the new part had the same part number.
Vehicle had an engine miss fire that required replacement of the head. Miss. Returned shortly after repairs. Dealer said there was no miss. Vehicle filled up with water during a rainstorm. All interior had to be removed and dried out. Electrical problems occurred that required four batteries over 12 months. Dealer stated it was my problem, because I had a small inverter for computer. Sold the vehicle to the hummer dealer at a loss of $15,000. Hummer refused any assistance after first stating they would.
Dt*: the contact stated the engine was misfiring causing the vehicle to lose power while driving at any speed. After losing power, the engine ran rough at the decelerated speed. The vehicle was taken to the dealership four times for this issue. The first time the dealership corrected circuit #239. The second time there was a lose terminal. The third time the #1 cylinder coil was replaced and the fourth time there was a lose wire. The vehicle is running on only four cylinders. The problem recurred again shortly after picking the vehicle up from the dealership.
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