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PhilJ, ASE Certified Technician
Category: Car
Satisfied Customers: 604
Experience:  Master ASE certified, dealer employed for 10 years, shop foreman
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H3..sitting..a line Hummer started to vibrate

Customer Question

 H3 Hummer 2006. While sitting in a line Hummer started to vibrate. I pulled out of the line and it gradually began to vibrate stronger. The vibration does not seem to be in the engine. When I put it in gear the vibration increases. I am curious to the cause of this. -  have pulled over,tow orokay to drive home?
Submitted: 5 years ago.
Category: Car
Expert:  PhilJ replied 5 years ago.

PhilJ : How many miles you got? Does this vibration happen at a stop?

It has 81000 miles. The vibration occurs while driving and seems to fill more like a miss when stopped. i

PhilJ : Have you changed spark plugs? Any check engine lights?

We have not done a tune up on the Hummer, and that did cross my mind. There is not a check engine light on.

PhilJ : No check engine light means coils are good so put some plugs in there and recheck it.

Thank you, XXXXX XXXXX try it.

PhilJ : I would get OEM plugs aftermarket plugs don't work so well in hummer.