ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
IDLE AIR BYPASS VALVE AND TUBE ASSEMBLY FAILED CAUSING SUDDEN ACCELERATION AND HIGH IDLE.
2003
SUSPENSION
2003 GRAND MARQUIS DEVELOPED PROBLEMS WITH THE ALTERNATOR, THE THROTTLE STICKING OPEN AND ALIGNMENT PROBLEMS.*MR THERE WAS ALSO A RATTLE NOISE COMING FROM THE ENGINE AND THE DIGITAL READOUT ON THE DASH WAS NOT READING PROPERLY. *TT