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H2 hummer 6.2 litre lack of power feels like it is back

Hi Mechanic's Assistant: Hello...

Hi

Mechanic's Assistant: Hello. How can I help?

Hi. H2 hummer 6.2 litre lack of power feels like it is back firing through intake just started after starting was driving alright brand new engine three months ago.No codes in fault codes

Mechanic's Assistant: Will the headlights turn on? Is the battery fully charged?

Yes

Mechanic's Assistant: What year is your H2?

09

Mechanic's Assistant: Are you fixing your H2 yourself? What have you tried so far?

Yes haven't change anything yet was think of looking at the variable value timing unit

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Answered in 5 minutes by:
4/20/2018
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Car
Satisfied Customers: 5,779
Experience: Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic Vehicles
Verified

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

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So there is no check engine light on at this time ? and did you scan it for faults ?

what is the mileage on it now ?

will it do it more under load , when get on it , it back fires ?

has fuel filter ,plugs, coils been replaced ?

Are you looking for the most possible causes or you are repairing it yourself .

Please Let Me Know

Thank You

Chad Farhat

ASE Certified Technician

Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Car
Satisfied Customers: 5,779
Experience: Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic Vehicles
Verified
Chad Farhat and 87 other Car Specialists are ready to help you
Ask your own question now
Customer reply replied 3 months ago
Car idles alright doesn't feel like it is missing had code in it
Phone call session started

WHAT WAS THE FAULT CODE # RETRIEVED ?

I NEED THAT #

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CHECK COILS , PLUGS AND MAF SENSOR .MASS AIR FLOW SENSOR

CLICK ON LINK TO VIEW MAF SENSOR LOCATION

THEY SELL MAF SENSOR CLEANER AT LOCAL PARTS STORE, I M SURE IN AUSTRALIA THEY DO TO :)

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Chad Farhat
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Car
Satisfied Customers: 5,779
5,779 Satisfied Customers
Experience: Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic Vehicles

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