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.
Resources for the Repair and Maintenance of your 1993 Pontiac Bonneville
1993 Pontiac Bonneville
1993 Pontiac Bonneville Problems
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.
The water pump may develop a coolant leak resulting in an engine overheating condition.
The high pressure power steering hose will commonly leak fluid; it should be replaced.
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.
1993 Pontiac Bonneville Recalls (Recent)
Summary: VEHICLE DESCRIPTION: PASSENGER VEHICLES MANUFACTURED FROM AUGUST 1991 THROUGH JULY 1995. THE TRANSMISSION OIL COOLER LINE CAN SEPARATE WHEN THE VEHICLE IS OPERATED IN LOW TEMPERATURES IN COMBINATION WITH HIGH TRANSMISSION LOADS.Learn more »
1993 Pontiac Bonneville Questions and Answers
the car works fine when it finally warms up.until then it idles high and wont shift into o.d. and the check engine light is on until the motor is at running temp.can you help me with this thanks
Have a pontiac Bonneville every so often it will not start battery is dead battery checks out good alternator checks good starter cables tight dash gauges goes in and out bit still seems to show ch...
My 1993 Bonneville has a vibration in the steering when I reach highway speeds. The tires are new and the steering is tight. The car has 104,00 miles on it.
I have put new tires on the front of my pontiac but still have a vibration in the steering wheel between 30 and 55 mph.
1993 Pontiac Bonneville Reviews
How does cost to replace a water pump in 1993
I bought this car last october with 170 on it havent had but minor issues mainly with wheel hub and bearings. Brakes are a bit weird. But in all its a beautiful car. Reliable and roomy. I believe that it was maintained well by previouse owner. no real signs of excissive wear on interior or exterior. No one believes its a 93. Alot of the issues I am facing come with high milage. Some say I shouldnt have bought and others say for the 1500 I paid they dont see where I have room to complain. with the price comes issues any how right. By the way I am an olds person my self but The bonnie would have been my 2nd. Olds are the best hands down. to bad they arent making them anymore.