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137PH84396E221654
Vehicle Summary
The 2006 HUMMER H1 is a robust multipurpose passenger truck with a powerful 6.6L GM-Isuzu turbocharged diesel engine. It features an 8-cylinder engine producing at least 300 hp and comes equipped with a 5-speed automatic transmission. Built by AM GENERAL LLC in Mishawaka, Indiana, this 4-door vehicle falls in the Class 3 weight category, making it ideal for heavy-duty tasks.
Complete Specifications
Common Issues for This Vehicle
Oil leaks
The 2006 Hummer H1 with a GM-Isuzu 8-cylinder engine is prone to oil leaks, which can be caused by worn-out gaskets or seals.
Overheating
This vehicle can experience overheating issues due to a malfunctioning thermostat, radiator problems, or issues with the cooling fan.
Fuel injector problems
The fuel injectors may become clogged or fail, leading to poor engine performance and reduced fuel efficiency.
Timing belt/chain issues
If the timing belt or chain is not maintained properly, it can lead to engine misfires or even severe engine damage.
Turbocharger failure
If the Hummer H1 is equipped with a turbocharger, it may experience issues such as poor acceleration or excessive smoke due to turbocharger failure.
Electrical problems
Issues with the engine’s electrical components, such as the alternator or battery, can lead to starting problems or erratic engine behavior.
Exhaust manifold cracks
The exhaust manifold can develop cracks, leading to exhaust leaks and potentially reduced engine performance.
Fuel pump failure
Problems with the fuel pump can cause starting issues and poor engine performance, as the engine may not be getting enough fuel.
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