Hot answers tagged bonneville
Just need to replace the master cylinder, the booster should be fine. The piston in the master cylinder is bad and is leaking against the booster. That's the only place for the fluid to come out.
I had a similar problem with a Ford Taurus the problem finally was traced to the vehicle speed sensor after it failed completely.
You should be able to pull them out with your hands, if it's the kind I am thinking of (in the fuse box under the hood) there is no latch or anything else holding them in.
As @jzd commented, oil pressure should change with engine load. At idle, your oil pressure is at its lowest, when accelerating it will be at its highest and cruising it should steady out. Also ambient temperatures effect oil pressure depending on the weight of oil you are using. Here is an explanation I gave a club member on our forum of a similar ...
I had a similar problem on 2 vehicles, a 03 mustang and a 99 bonneville. When the car would come to a stop light the engine would idle too low and stall out. The problem (in both cases) was the mass air flow sensor. Its a piece of electronics that determines the amount of air to let in to the engine from the throttle based on inputs. You could test it by ...
You could try changing your fuel filter(s) and PCV valve if your car has one.
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