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Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1690
Experience:  GM Grand Master Technician 2007. 14 year experience.
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My 2011 GMC Terrain has frequent problems with loss of power

Customer Question

My 2011 GMC Terrain has frequent problems with loss of power while driving or power surges at stop lights. The dealership cannot find the problem but recommends 'advanced diagnostics' for $200.00.
Please help!
Submitted: 1 year ago.
Category: GMC
Expert:  Jon Scott replied 1 year ago.

Welcome to our site my name is***** will need a fuel pressure tester and a good scan tool o trouble shoot this problem. The most common things that will cause this is High Pressure Fuel Pump, Timing Chain and Camshaft Phaser. Sounds like the phaser or other timing components. But it will need diagnostic testing. I can help but an advanced scan tool will be necessary. I may be able to help you to find someone in your area that won't be so expensive.