GMC Troubleshooting Questions? Ask a Mechanic for Answers
Is THIS a Auto or Standard Shift ?
Ok , So have you tried to hold the brake & slowly give it the gas ?
does it stall then ?
Ok , this could be the Torque convertor Clutch, mostly if it has the 4L80-E Transmission
ell if it Kills the engine quick with a strong thump its the clutch, however if its just light it sounds like the throttle body should be cleaned.....look under the flaps or as we say butterflies on the throttle body.....has to be very clean to make gas a vapor
just spray with carb cleaner & use like a old tie shirt to clean
Also you should put 2 bottle of throttle body & injector clearer ,with High Grade gas like Sunoco High Test
got it ?
exactly check & clean