1996 Pontiac Bonneville Repair Question
Topics covered: Sensor, Fuel pressure, Abs.
Mileage: No information provided.
Mileage: No information provided.
Asked on October 30, 2009
1996 Pontiac Bonneville hesitating to pick speed
1996 Pontiac Bonneville 6 cyl Two Wheel Drive Automatic 190000 miles
when I start my car it cuts back off then I start and it hesitates for about 3 minutes t pick up speed when I'm driving. also when I'm driving on expressway it shakes before picking up speed
when I start my car it cuts back off then I start and it hesitates for about 3 minutes t pick up speed when I'm driving. also when I'm driving on expressway it shakes before picking up speed
Asked by ronniecroomAnswer
Replied on October 30, 2009
Oxygen sensor
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)
Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:
Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
