Idle problem

Asked by Jan 10, 2017 at 02:38 AM

Question type: Maintenance & Repair

I have a 02 chevy suburban Z71 4x4 idle problem it
will idle crazy it drops doesnt go up (down up down
up that's how it idles)but only does it when in
sitting and fills like it's ganna turn off but never
dose I need help to fix it so I need some tips  

1 Answer

74,645

I would scan the vehicles to see if there are any codes, if there are any they would point you in the right direction to fix the problem. Just off the top of my head it may need a Mass Air Flow Sensor, and or you may have some vacuum leaks. Check the intake manifold bolts, just make sure they are just snug for tightness.

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