The P0700 code in your Hummer H3 is a generic OBD-II code that indicates a malfunction within the transmission control system. This code is not specific to any particular issue but rather points to a general fault in the system. Additionally, the P0700 code usually appears in conjunction with other transmission-related codes or shift solenoid ...Hi MR; Bob I have a 2007 Hummer H3 . The engine light on the codes P0128. I have changed the thermostat and temper senor also the cooling too. But the engine temper gauge only reads150* all time.No ma … read moreThe transmission in your 2006 Hummer H3 is the part of the 2006 Hummer H3 that directs the power from your engine to the driveshaft which in turn helps to turn the wheels on your 2006 Hummer H3 . Following good preventive maintenance procedures for your transmission will always help your transmission perform better, last longer and require ... 2007 Hummer H3 Transmission Problems and Repair . 2007 Hummer H3 Transmission Problems. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2007 Hummer H3 problems occur, check out our car reliability stats. 2007 Hummer H3 – Top Speed. Engine and Transmission.The 2007 Hummer H3 has 3 problems reported for check engine light on. Average failure mileage is 108,000 miles. ... H3 3.2L. Automatic transmission; 55,000 miles; H3 Hummer 2007 check engine light ...Feb 7, 2022 · Hummer H3: I am working on a 2007 Hummer H3, 5 spd trans, I am working on a 2007 Hummer H3, 5 spd trans, 3.7 L engine. I just replaced the engine and put in a new clutch while the engine was removed. Mar 6, 2018 · 2007 Hummer h3 transmission failure. While going uphill hummer front end shakes and lost all gears. after 20 min it was fine but then a week later happened agian and lost all gears and grinds going into park. hummer is broke down and undrivable. just had oil and fluids checked a week ago. all was fine. Has 69000 miles. Mileage: 185,975 miles MPG: 14 city / 18 hwy Color: Black Body Style: SUV Engine: 5 Cyl 3.7 L Transmission: Automatic. Description: Used 2007 Hummer H3 with 4WD, Bucket Seats, Skid Plate, Suspension Package, Luggage Rack, 1SC Package, Keyless Entry, 1SD Package, Fog Lights, 16 Inch Wheels, and Full Size Spare Tire.Sep 21, 2016 · 2) (regular easy, 30 minutes to complete) Scoot under the your H3 with a 10mm socket and wrench to remove the 4 bolts holding the encoder motor on. While it is still plugged in with the parking brake on and the vehicle in neutral, press the buttons on your dash to see if it is moving to each distinct position. 2) (regular easy, 30 minutes to complete) Scoot under the your H3 with a 10mm socket and wrench to remove the 4 bolts holding the encoder motor on. While it is still plugged in with the parking brake on and the vehicle in neutral, press the buttons on your dash to see if it is moving to each distinct position.The 2006 Hummer H3 has 529 problems & defects reported by H3 owners. The worst complaints are engine, electrical, and body / paint problems. ... 2007; 2006; Print report. ... transmission problems ... Dec 20, 2018 · When there is a large leak in the Hummer H3’s EVAP system, it will throw the P0455 OBDII Code. P0455 indicates a large leak in the evaporative emission control system. (EVAP). There are different leak size codes. For example, P0456 means your H3 has a small EVAP leak. While the trouble code may state that there is a “large leak” in the ... 2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3 SPECIFICATIONS FASTENER TIGHTENING SPECIFICATIONS Fastener Tightening Specifications SEALERS, ADHESIVES AND LUBRICANTS 2007 Hummer H3 4dr SUV. 242-horsepower 3.7L I5 5-speed manual AWD w/low range. 66000 mi. US $180. Rear U joint failed ten days out of five year warranty, had my local shop change both U joints on shaft, one that failed is greasable, non failed is non greasable, same job would have cost $580.00 at local dealer with truck just 10 days oow. Feb 13, 2012 · SOURCE: 2006 H3 Hummer fan problem Hi if your internal fan not work in any position well i fixed up myself easy and save your money. locate the fan motor air just outside right courtesy drawn document in front of passenger. go from down and look up you will see a motor with a big connector white with 2 screw secure inside the motor block. loose the two screws and pull out gently the connector ... 2007 Hummer H3 4dr SUV. 242-horsepower 3.7L I5 5-speed manual AWD w/low range. Hummer H3 in Virginia, United States. Jun 2014 - Nov 2014. Sep 2014. 50000 mi. US $850. Due to a poorly designed sunroof draining sust leaks caused sensors to get wet and tripped the warning lights to ping ABS and stability system errors.2007 H3 WONT GO IN REVERSE. Asked by HAASTYLE Jul 29, 2016 at 01:34 PM about the 2007 Hummer H3. Question type: Maintenance & Repair. PUT THE H3 IN REVERSE. PRESS THE GAS MOVES ABOUT 6-8' THEN ITS. LIKE IT IS NEUTRAL NO MOVEMENT.Feb 26, 2015 · Chock the wheels. Make sure the ignition is on, but not running. Find the shift cable under the vehicle and disconnect it. Try to shift it from the inside. If you are able to move the shift lever, then there may be a transmission issue. If you cannot move the leaver. This humming sound will change with the engine’s RPM. Unplugging the alternator from the wiring harness should stop the noise. 2. Power Steering Pump. A failing power steering pump. The power steering pump is a common reason your Hummer H3 might whine when accelerating. If it gets too low on fluid, it’ll whine a lot.2007 Hummer H3 4dr SUV. 242-horsepower 3.7L I5 5-speed manual AWD w/low range. 66000 mi. US $180. Rear U joint failed ten days out of five year warranty, had my local shop change both U joints on shaft, one that failed is greasable, non failed is non greasable, same job would have cost $580.00 at local dealer with truck just 10 days oow. 2007 Hummer H3 transmission problems with 9 complaints from H3 owners. The worst complaints are transmission failure, transmission cooler busted in radiator.A bad fuel pump, ignition problems, clogged fuel filter, bad mass airflow sensor, and bad crank/camshaft sensors are just a few of the problems that can cause an engine to not start. 5. Poor Shifts. The transmission may have a hard time shifting, or not even be able to shift at all. Conclusion: Hummer H3 Bad PCM SymptomsThe transmission in your 2006 Hummer H3 is the part of the 2006 Hummer H3 that directs the power from your engine to the driveshaft which in turn helps to turn the wheels on your 2006 Hummer H3 . Following good preventive maintenance procedures for your transmission will always help your transmission perform better, last longer and require ... The P0700 code in your Hummer H3 is a generic OBD-II code that indicates a malfunction within the transmission control system. This code is not specific to any particular issue but rather points to a general fault in the system. Additionally, the P0700 code usually appears in conjunction with other transmission-related codes or shift solenoid ...Official recalls have been issued for the 2007 Hummer H3 by the NHTSA. The complete details of all recalls are listed below, along with what they cover and the recommended solutions. Recalls don't ... 2) (regular easy, 30 minutes to complete) Scoot under the your H3 with a 10mm socket and wrench to remove the 4 bolts holding the encoder motor on. While it is still plugged in with the parking brake on and the vehicle in neutral, press the buttons on your dash to see if it is moving to each distinct position.So you get a transmission that’s designed to outlast the original, and a warranty that covers you anywhere in the U.S.A. Hummer H3 transmission problems = Solved. To learn more, give us a call at 1-866-812-7560. Or you can click here to check on the price and availability of a remanufactured Hummer H3 transmission. The 2007 Hummer H3 has 1 problems reported for transmission cooler busted in radiator. Average repair cost is $2,000 at 92,000 miles. 2007 Hummer H3 4dr SUV. 242-horsepower 3.7L I5 5-speed manual AWD w/low range. 66000 mi. US $180. Rear U joint failed ten days out of five year warranty, had my local shop change both U joints on shaft, one that failed is greasable, non failed is non greasable, same job would have cost $580.00 at local dealer with truck just 10 days oow.Bad Torque Converter Symptoms: Hummer H3. Here are some of the most common bad torque converter symptoms that could happen to your H3. 1. Slipping Transmission (Low Speed) The torque converter “stall speed” is the speed that the engine needs to be turning before the torque converter will begin engaging the transmission.The 2007 Hummer H3 has 44 NHTSA complaints for the engine at 84,823 miles average. ... GM service manager mention a spring problem on 2006 2007 rendevous. ... Had to re-build the transmission ...2007 Hummer H3 Transmission Torque Converter. 2007 Hummer H3 Transmission Mount. 2007 Hummer H3 Transmission Cable Shift (A/T) 2007 Hummer H3 Transmission Pan Gasket - (A/T) 2007 Hummer H3 Auto Trans Oil Cooler Line Fitting. 2007 Hummer H3 Automatic Transmission Rebuild Kit. 2007 Hummer H3 Transmission Oil Cooler Hose.Nov 25, 2019 · 1. Blue Smoke. The most obvious and a telltale sign that your H3 is burning oil is blue smoke. Blue smoke indicates that oil has made its way to the combustion chamber. It is then burned with the gasoline and tints the exhaust blue. Your exhaust will look more like a two stroke engine if it’s bad enough. Here’s more on blue exhaust smoke. Model Lineup. The 2007 Hummer H3 is offered in two trim levels: base ($29,405) and H3X ($37,545). Both are powered by a 242-hp five-cylinder engine. A five-speed manual transmission is standard; a four-speed automatic is optional ($1,695).2007-07-16. Transmission problems have been reported by some owners of the 2007 Hummer H3. Image source: Wikimedia. Several owners have complained that their Hummer lost power and exhibited shifting problems while they were on the road. Others reported that their transmission was shaky for a few days. Most of them also had trouble shifting into gears.Common symptoms of overheating include smoke coming from under the hood, a pegged temperature gauge, and (eventually) a blown head gasket. If your H3 is overheating, stop driving it immediately to avoid damaging the engine. Ignoring an overheating engine can lead to serious engine problems. A blown head gasket, engine block, or cracked head are ...Recall List for the 2007 Hummer H3. Official recalls have been issued for the 2007 Hummer H3 by the NHTSA. The complete details of all recalls are listed below, along with what they cover and the ...Oil sign on at idle, stop, parked. Hummer H3X oil signal comes on at just about form of the car not moving forward. I notice that this happens only in the summer time, and the car has been driven for at least 45 minutes. If it's cold there is no oil signal. I changed the thermostat,oil sensor switch, and I have done a full oil and filter change ...Hi MR; Bob I have a 2007 Hummer H3 . The engine light on the codes P0128. I have changed the thermostat and temper senor also the cooling too. But the engine temper gauge only reads150* all time.No ma … read more Rack and Pinion. May lessen or go away as your H3 warms up. Bad Power Steering Fluid. May appear dark or black. Noise free. Low tire pressure. Tire pressure light may be on. Check the pressure. Here are six of the most common reasons why your H3’s steering wheel may be hard to turn .2007 Hummer H3 Transmission Problems and Repair . 2007 Hummer H3 Transmission Problems. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2007 Hummer H3 problems occur, check out our car reliability stats. 2007 Hummer H3 – Top Speed. Engine and Transmission.2010 Hummer H3 V8-5.3L: Service type Gears slipping when accelerating Inspection: Estimate $94.99: Shop/Dealer Price $104.99 - $112.48: 2007 Hummer H3 L5-3.7L: Service type Gears slipping when accelerating Inspection: Estimate $94.99: Shop/Dealer Price $105.02 - $112.55: 2006 Hummer H3 L5-3.5L: Service type Gears slipping when accelerating ... The 2007 Hummer H3 has 7 problems reported for leaking radiator. Average repair cost is $580 at 80,200 miles. ... H3. Automatic transmission; 92,000 miles; A D V E R T I S E M E N T S.Bad Torque Converter Symptoms: Hummer H3. Here are some of the most common bad torque converter symptoms that could happen to your H3. 1. Slipping Transmission (Low Speed) The torque converter “stall speed” is the speed that the engine needs to be turning before the torque converter will begin engaging the transmission.2007 Hummer H3 Flush brake fluid every 60,000 miles. Brake fluid can become dirty and may cause problems in the brake system ; it should be flushed every 60,000 miles. 2007 Hummer H3 Flush cooling system every 60,000 miles. GM recommends replacing the engine coolant at 100,000 miles; however, our technicians tell us that the coolant may become ...David answered about a year ago. There is a pipe running off the oil pump (oil pickup tube/pipe) that has a screen/ mesh in its end , this can become clogged with debris, especially from small bits of timing chain guides being warn from timing chain , this will cause low flow of oil causing oil light to come on. Mark helpful. I went to the local dealer and after computer inspection they saw the code po717 input speed sensor with low voltage. they reset the code and asked me to come later. now my hummer is not shifting the gear from 2nd to 3rd and when i shift on D from idle position it drags to speed up even. is it due to some switch or the transmission has gone bonkers?Oct 21, 2011 · I went to the local dealer and after computer inspection they saw the code po717 input speed sensor with low voltage. they reset the code and asked me to come later. now my hummer is not shifting the gear from 2nd to 3rd and when i shift on D from idle position it drags to speed up even. is it due to some switch or the transmission has gone bonkers? 2007 Hummer H3 Flush brake fluid every 60,000 miles. Brake fluid can become dirty and may cause problems in the brake system ; it should be flushed every 60,000 miles. 2007 Hummer H3 Flush cooling system every 60,000 miles. GM recommends replacing the engine coolant at 100,000 miles; however, our technicians tell us that the coolant may become ... Mar 6, 2018 · 2007 Hummer h3 transmission failure. While going uphill hummer front end shakes and lost all gears. after 20 min it was fine but then a week later happened agian and lost all gears and grinds going into park. hummer is broke down and undrivable. just had oil and fluids checked a week ago. all was fine. Has 69000 miles. The 2006 Hummer H3 has 529 problems & defects reported by H3 owners. The worst complaints are engine, electrical, and body / paint problems. ... 2007; 2006; Print report. ... transmission problems ... The Hummer H2 has decent reliability, With J.D. Power giving the 2009 model a score of 3 out of 5. The Hummer H2 has been known to develop problems like mode door actuator failure, gas cap issues, low oil pressure, and engine stalling, among other things.Jul 11, 2023 · Remove the cap and place a funnel into the opening. Refill the container with the recommended amount of transmission fluid. Return the transmission fluid container’s cap. Turn on the Hummer’s engine and allow it to idle. Attempt to change the Hummer’s gear by shifting the shifter lever to check if the problem persists. Sep 28, 2015 · Aug 18, 2008 - It is in the engine bay on the driver front side of the motor. Look at the battery and just below it is the ECM/TCM on a bracket right beside ... [SOLVED] - Transmission Shifting Issues. Mar 26, 2011. Additional "TCM" Transmission Control Module. Dec 23, 2014. A "how to" for removing the ECM/ TCM. Apr 9, 2006. Transmission in NEUTRAL/Air Conditioner is OFF ECT Sensor Engine Data 1, Engine Data 2, Engine Data 3 °C/°F Varies IMPORTANT: Review the system operation in order to familiarize yourself with the system functions. Refer to Cooling System Description and Operation . 2007 Hummer H3 2007 ENGINE Engine Cooling - H3 MY Dec 20, 2018 · When there is a large leak in the Hummer H3’s EVAP system, it will throw the P0455 OBDII Code. P0455 indicates a large leak in the evaporative emission control system. (EVAP). There are different leak size codes. For example, P0456 means your H3 has a small EVAP leak. While the trouble code may state that there is a “large leak” in the ... When there is a large leak in the Hummer H3’s EVAP system, it will throw the P0455 OBDII Code. P0455 indicates a large leak in the evaporative emission control system. (EVAP). There are different leak size codes. For example, P0456 means your H3 has a small EVAP leak. While the trouble code may state that there is a “large leak” in the ...2007 Hummer H3 problems (8) View all. 2008 Hummer H3 problems (8) View all. 2009 Hummer H3 problems (7) View all. 2010 Hummer H3 problems (5) View all. Get back on ...2007 Hummer H3 Transmission Problems Find something helpful? Spread the word. Click on a problem below to read more. Transmission Failure 5 Transmission Cooler Busted In Radiator 1 NHTSA:... This humming sound will change with the engine’s RPM. Unplugging the alternator from the wiring harness should stop the noise. 2. Power Steering Pump. A failing power steering pump. The power steering pump is a common reason your Hummer H3 might whine when accelerating. If it gets too low on fluid, it’ll whine a lot.5 complaints Most Common Solutions: transmission rebuilt (2 reports) changed radiator and transmission cooling system (1 reports) not sure (1 reports) replaced valve body (1 reports)... Nov 25, 2019 · 1. Blue Smoke. The most obvious and a telltale sign that your H3 is burning oil is blue smoke. Blue smoke indicates that oil has made its way to the combustion chamber. It is then burned with the gasoline and tints the exhaust blue. Your exhaust will look more like a two stroke engine if it’s bad enough. Here’s more on blue exhaust smoke. Dec 20, 2018 · When there is a large leak in the Hummer H3’s EVAP system, it will throw the P0455 OBDII Code. P0455 indicates a large leak in the evaporative emission control system. (EVAP). There are different leak size codes. For example, P0456 means your H3 has a small EVAP leak. While the trouble code may state that there is a “large leak” in the ... Dec 20, 2018 · When there is a large leak in the Hummer H3’s EVAP system, it will throw the P0455 OBDII Code. P0455 indicates a large leak in the evaporative emission control system. (EVAP). There are different leak size codes. For example, P0456 means your H3 has a small EVAP leak. While the trouble code may state that there is a “large leak” in the ... 2007 H3 WONT GO IN REVERSE. Asked by HAASTYLE Jul 29, 2016 at 01:34 PM about the 2007 Hummer H3. Question type: Maintenance & Repair. PUT THE H3 IN REVERSE. PRESS THE GAS MOVES ABOUT 6-8' THEN ITS. LIKE IT IS NEUTRAL NO MOVEMENT.Jul 29, 2020 · Vehicle Speed: A Misfire can be felt at any speed, but is most noticeable at low RPM. A misfiring engine is one of the most common reasons your H3 will shake when accelerating. A vehicle’s ignition system consists of spark plugs, coil packs, and maybe plug wires. If it is an older model, it’ll have a distributor and coil instead of coil packs. Aug 15, 2023 · The Hummer H2 has decent reliability, With J.D. Power giving the 2009 model a score of 3 out of 5. The Hummer H2 has been known to develop problems like mode door actuator failure, gas cap issues, low oil pressure, and engine stalling, among other things. 2 C175 Engine Harness to Transmission Internal Harness 3 Heated Oxygen Sensor (HO2S) 2 4 Transfer Case Encoder Motor Connector 5 Vehicle Speed Sensor (VSS) Connector 6 Park/Neutral Position (PNP) Switch 2007 Hummer H3 2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3 MYOfficial recalls have been issued for the 2007 Hummer H3 by the NHTSA. The complete details of all recalls are listed below, along with what they cover and the recommended solutions. Recalls don't ... 2007 Hummer H3 Transmission Torque Converter. 2007 Hummer H3 Transmission Mount. 2007 Hummer H3 Transmission Cable Shift (A/T) 2007 Hummer H3 Transmission Pan Gasket - (A/T) 2007 Hummer H3 Auto Trans Oil Cooler Line Fitting. 2007 Hummer H3 Automatic Transmission Rebuild Kit. 2007 Hummer H3 Transmission Oil Cooler Hose.Feb 26, 2015 · Chock the wheels. Make sure the ignition is on, but not running. Find the shift cable under the vehicle and disconnect it. Try to shift it from the inside. If you are able to move the shift lever, then there may be a transmission issue. If you cannot move the leaver. 2007 Hummer H3 Transmission Torque Converter. 2007 Hummer H3 Transmission Mount. 2007 Hummer H3 Transmission Cable Shift (A/T) 2007 Hummer H3 Transmission Pan Gasket - (A/T) 2007 Hummer H3 Auto Trans Oil Cooler Line Fitting. 2007 Hummer H3 Automatic Transmission Rebuild Kit. 2007 Hummer H3 Transmission Oil Cooler Hose.Hummer H3; Oldsmobile Bravada; Pontiac Firebird – 1994-2002; Pontiac GTO – 2004; Saab 9-7X – 2005-2009; Isuzu Ascender – 2007; What Transmission Do I Have. If you’re still not sure what transmission your car has, look for the VIN number – the Vehicle Identification Number. The Hummer H2 has decent reliability, With J.D. Power giving the 2009 model a score of 3 out of 5. The Hummer H2 has been known to develop problems like mode door actuator failure, gas cap issues, low oil pressure, and engine stalling, among other things.The transmission in your 2006 Hummer H3 is the part of the 2006 Hummer H3 that directs the power from your engine to the driveshaft which in turn helps to turn the wheels on your 2006 Hummer H3 . Following good preventive maintenance procedures for your transmission will always help your transmission perform better, last longer and require ...2007 Hummer H3 Transmission Torque Converter. 2007 Hummer H3 Transmission Mount. 2007 Hummer H3 Transmission Cable Shift (A/T) 2007 Hummer H3 Transmission Pan Gasket - (A/T) 2007 Hummer H3 Auto Trans Oil Cooler Line Fitting. 2007 Hummer H3 Automatic Transmission Rebuild Kit. 2007 Hummer H3 Transmission Oil Cooler Hose.Rack and Pinion. May lessen or go away as your H3 warms up. Bad Power Steering Fluid. May appear dark or black. Noise free. Low tire pressure. Tire pressure light may be on. Check the pressure. Here are six of the most common reasons why your H3’s steering wheel may be hard to turn .If your 2007 Hummer H3 ’s transmission is slipping and there are no leaks, the solenoid is the next item that you should check. Clutch Problems The clutch is located within the torque converter and can occasionally become jammed.Oct 12, 2019 · Rack and Pinion. May lessen or go away as your H3 warms up. Bad Power Steering Fluid. May appear dark or black. Noise free. Low tire pressure. Tire pressure light may be on. Check the pressure. Here are six of the most common reasons why your H3’s steering wheel may be hard to turn . Sep 28, 2015 · Aug 18, 2008 - It is in the engine bay on the driver front side of the motor. Look at the battery and just below it is the ECM/TCM on a bracket right beside ... [SOLVED] - Transmission Shifting Issues. Mar 26, 2011. Additional "TCM" Transmission Control Module. Dec 23, 2014. A "how to" for removing the ECM/ TCM. Apr 9, 2006. 2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3 SPECIFICATIONS FASTENER TIGHTENING SPECIFICATIONS Fastener Tightening Specifications SEALERS, ADHESIVES AND LUBRICANTS
If your 2007 Hummer H3 ’s transmission is slipping and there are no leaks, the solenoid is the next item that you should check. Clutch Problems The clutch is located within the torque converter and can occasionally become jammed. . Bethie lovaandved2ahukewjv3oqz5 v_ahu4lgofhep8ado4oaeqfnoecagqaqandusgaovvaw2quud9wgtzx7zlp1cob_ud
A bad fuel pump, ignition problems, clogged fuel filter, bad mass airflow sensor, and bad crank/camshaft sensors are just a few of the problems that can cause an engine to not start. 5. Poor Shifts. The transmission may have a hard time shifting, or not even be able to shift at all. Conclusion: Hummer H3 Bad PCM SymptomsDavid answered about a year ago. There is a pipe running off the oil pump (oil pickup tube/pipe) that has a screen/ mesh in its end , this can become clogged with debris, especially from small bits of timing chain guides being warn from timing chain , this will cause low flow of oil causing oil light to come on. Mark helpful. I went to the local dealer and after computer inspection they saw the code po717 input speed sensor with low voltage. they reset the code and asked me to come later. now my hummer is not shifting the gear from 2nd to 3rd and when i shift on D from idle position it drags to speed up even. is it due to some switch or the transmission has gone bonkers?Bad Torque Converter Symptoms: Hummer H3. Here are some of the most common bad torque converter symptoms that could happen to your H3. 1. Slipping Transmission (Low Speed) The torque converter “stall speed” is the speed that the engine needs to be turning before the torque converter will begin engaging the transmission.Problem with your Hummer H3? Our list of 9 known complaints reported by owners can help you fix your Hummer H3. ... 2007 Hummer H3 problems (8) View all. 2008 Hummer ...P0700 is a common code if it’s an electrical issue related to the transmission. If something has gone wrong in the transmission, your H3 may not be able to accelerate anymore, or it’ll. If it can no longer shift, it could be caused by a solenoid/valve body that has gone bad, clutch packs, debris, and much more.2007 Hummer H3 transmission problems with 9 complaints from H3 owners. The worst complaints are transmission failure, transmission cooler busted in radiator.Dec 4, 2019 · Bad Torque Converter Symptoms: Hummer H3. Here are some of the most common bad torque converter symptoms that could happen to your H3. 1. Slipping Transmission (Low Speed) The torque converter “stall speed” is the speed that the engine needs to be turning before the torque converter will begin engaging the transmission. Jul 1, 2012 · The 2007 Hummer H3 has 7 problems reported for leaking radiator. Average repair cost is $580 at 80,200 miles. ... H3. Automatic transmission; 92,000 miles; A D V E R T I S E M E N T S. Sep 29, 2019 · P0700 is a common code if it’s an electrical issue related to the transmission. If something has gone wrong in the transmission, your H3 may not be able to accelerate anymore, or it’ll. If it can no longer shift, it could be caused by a solenoid/valve body that has gone bad, clutch packs, debris, and much more. 2007 Hummer H3 transmission problems with 9 complaints from H3 owners. The worst complaints are transmission failure, transmission cooler busted in radiator..