Buick LeSabre Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Buick LeSabre
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Buick LeSabre ProblemsErratic Fuel Gauge Operation
It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.
The upper intake manifold may develop an internal coolant leak causing one or more cylinders to fill with coolant. This can cause the engine to "hydro-lock" and not turn over. Removing the spark plugs will allow the engine to turn over pushing the coolant out of the spark plug holes. Replacing the upper intake plenum and gasket is commonly required to correct this condition.
The engine can be very difficult to start after this problem has been repaired, it can be helpful to clear as much of the coolant from the intake manifold and cylinders as possible before reassembling the intake manifold.
Buick LeSabre Questionsit starts when it wants (1 answer)
It starts wen it feels like iy and other times it wont syart at all
Key ingition under driver side dash near fuse bpx what is it for
They won't turn off even when it's on off.