1999 Pontiac Grand Am Repair Question
I OWN A 1999 PONTIAC GRAND AM WITH A 2.4L TWIN CAM. RECENTLY IVE BEEN HAVING ELECTRICAL PROBLEMS, THE TRAC OFF LIGHT AND THE SERCICE ENGINE LIGHT GO ON AND IT STARTS RUNNING ROUGH. IF I PUT IT ON THE SCANNER, IT IT BRINGS UP AN IDLE SENSOR CODE, WHICH I
restate symptoms in reply.
THE SERVICE ENGINE LIGHT AND TRAC OFF LIGHT GO ON, AND IT STARTS RUNNING ROUGH. THE SCANNER CODE SAYS ITS THE IDLE SENSOR , BUT I HAD THE DEALERSHIP REPLACE IT. WHEN I RESET THE SERVICE ENGINE LIGHT TO OFF IT RUNS FINE. THEY TOLD ME I MIGHT NEED TO CLEAN THE THROTTLE BODY INTAKE. WHAT SHOULD I TRY.
is it still giving same code for IAC?
what is the code?
high idle is all that indicates.
common causes besides IAC are
A vacuum leak
Leaking air intake after the throttle body
EGR valve leaking vacuum
A faulty positive crankcase ventilation (PCV) valve
Damaged/failed/dirty throttle body
Failed EVAP system
it sounds like vacuum leak on the drivers side, but the hose runs through a bundle of wires, covered with heat insulated tubing