I am having a problem with popping sound when I shift from 1st to 2nd. I hear a popping sound dont know what it is. Do any of you guys know what is causing this problem. Or better yet what should I be checking??
is it only the 1-2 shift? at idle or only under a load? where is the noise heard? is it possible that it is a back fire or just the sound of your paticular exhaust combo?
It's actually an after fire.
From Wikipedia: Afterfire occurs in engines that have an emission system malfunction (air injection system diverter valve), exhaust leak or unburnt fuel in an exhaust system in which the catalytic converter has been removed. When a driver shifts up and lets off the accelerator, the engine has a moment of running rich or with insufficient oxygen. This causes an incomplete burn which causes the fumes to explode in the exhaust system