Problem Reports
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1999 Pontiac Bonneville
Intake Manifold Gaskets Can Develop Engine Oil Leaks
The intake manifold gaskets can develop external engine oil or coolant leaks. The intake manifold will need to be removed and the gaskets replaced to correct this issue. In some cases the plastic intake manifold my be damaged requiring replacement.
Engine Stalling Due to Mass Air Flow/Crankshift Position Sensor Failure
The mass air flow or crankshaft position sensor may fail causing the engine to stall intermittently. Proper diagnoses will be necessary to determine the cause of any stalling condition.
Engine Overheating Due to Water Pump Leak
The water pump may develop a coolant leak resulting in an engine overheating condition.
High Pressure Power Steering Hose Can Leak Fluid
The high pressure power steering hose will commonly leak fluid; it should be replaced.
The Fuel Pump May Fail Causing the Engine to Stall or Crank Over But Not Start
The fuel pump can fail causing the engine to stall and not restart. Our technicians highly recommend to replace your fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.
Transmission Fluid Leak From Cooler Line
The rubber section of an automatic transmission cooler line may develop a fluid leak . In some cases the leaking section of hose can be replaced. In others, the complete cooler line must be replaced to correct this concern.
HVAC Mode/Temperature Door Actuators May Fail
The mode and temperature door actuators may fail causing improper air flow or temperature output from the heating and AC (HVAC) system.
Erratic Shifting of the Automatic Transmission
The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid.
Loss of power steering fluid from steering rack failure
The steering rack may fail causing a loss of power steering fluid as a result the steering may become hard to turn.
Car Won't Start and Security Light is On
Problems with the anti-theft systems using the raised-chip key can prevent the car from starting. The wires in the steering column to the ignition lock cylinder tend to break. The the key and ignition lock cylinder must be replaced to correct this condition.
Check Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
Wear In Outer Tie Rod Ends Can Cause Steering Problems
The outer tie rod ends on the steering linkage may wear causing excessive free play in the steering and uneven tire wear. If the worn tie rod ends are replaced, the wheel alignment should be checked and adjusted as necessary.
Engine Vacuum Leak From EGR Tube
The EGR tube may develop an engine vacuum leak causing the engine to run lean. The Check Engine Light may or may not illuminate.
Poor Ride/Handling Due to Worn Suspension Struts
The front struts may show signs of wear, or be excessively bouncy ride at freeway speeds. This may begin to occur at around 75,000 miles.
ABS light due to brake pressure modulator valve failure
Check Engine Light Due to Ignition Related Failures
Failure of the crankshaft position sensor, ignition control module, or PCM may cause the Check Engine Light to illuminate.