Mechanics

CAR RUNNING ROUGH AND STALLING WHILE DRIVING, OR TAKING OFF FROM A STOP.

2000 Pontiac Bonneville • 140,000 miles

Engine light came on said camshaft potion sensor replaced camshaft sensor, wireharness and the magnet. Replaced crankshaft sensor and harness. New plugs and wires. Still doing the same thing security light off and on while driving so got a new key ran good for a day then engine and security light back on and car is running rough
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Kathybutlerka
January 27, 2012.



Check battery and charging system. Check for vacuum leaks and compression loss. Make sure injectors are being pulsed properly. Check fuel pressure. You might also try running a can/bottle of fuel system cleaner through the tank.

Rivermikerat
Jan 27, 2012.