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 2000 Pontiac Bonneville
2000 Pontiac Bonneville
2000 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 mode and temperature door actuators may fail causing improper air flow or temperature output from the heating and AC (HVAC) system.
The water pump may develop a coolant leak resulting in an engine overheating condition.
The steering may develop a clunk type noise from the upper intermediate steering shaft. Our technicians tell us that you should check with you local GM dealer to find out what the latest repair is for this condition.
2000 Pontiac Bonneville Recalls (Recent)
RepairPal Expert Overview:
The anti-lock brake system hydraulic control unit (HCU) may leak brake fluid. A brake fluid leak may compromise braking ability, which could result in an accident. Dealers will inspect and replace the HCU if necessary.
Summary: ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 3800 V6 (L36) ENGINES AND CERTAIN DELPHI FUEL PRESSURE REGULATORS, THE REGULATORS HAVE A MUCH HIGHER THAN USUAL RATE OF FUEL LEAKS. A LEAK CAN ALLOW FUEL TO ENTER THE INTAKE MANIFOLD THROUGH A VACUUM LINE. IF THE ENGINE DOES NOT START WHEN CRANKED, THE FUEL FROM THE LEAKING REGULATOR AND A MISTIMED SPARK CAN CAUSE A BACKFIRE.Learn more »
2000 Pontiac Bonneville Questions and Answers
System Monitor keeps stating rear doors are open, when their not, turns on dome lights, and lets down rear right window all without being activated, very unpredictable. Problem just strated this w...
How do you replace the spark plugs on the right bank (rear) of the 3.8 engine in the 2000 Bonneville? The isn't the same clearance as was in the 1994?
how do i replace the camshaft positioning sensor...i cannot find where it goes
Every time I turn the steering wheel it makes a grinding noise but still turn what can it possibly be wrong?
2000 Pontiac Bonneville Reviews
Owned my Bonneville from 2005 to 2011. My favorite car ever. No major issues with it in all the time I owned it. Got it serviced regularly, replaced brakes, tires, serpentine belt, and had tune up at 100,000 miles. Replaced battery (after I found it - under back seat - my least favorite thing about the car). I put over 70,000 miles on it while I owned it and it has over 135,000 on it total and still running fine. For me, it was an excellent car.
I have a 2000 Bonneville, and it is my favorite car. but it as its problems as well. i have put a transmission in it, brakes(more than once), intake, it caught on fire!!!!. my control arm is bad, roters, axle,window motor. i've put alot of money into it, but im willing because its my dream car.