Question about 1999 Buick LeSabre
Well here is the real solution. Gas and bypassing a heater core have nothing to do with this. This is not a spark pug issue niether. Your security liggt is on for a reason if you have the older style key where you can see the resistor (black chip with a wire crossed it) then the wire broke in the column.comon problem. Go to radio shack and get the resistance of that chip with a multi meter then buy a resistor of the same resistance for about 99 cents next go under your das at the base of the column and cut the very very thin yellow and orange wires and splice your resistor in. That will take care of the security issue and you will be able to start the car.
Posted on Sep 27, 2013
If you are still having troubles try just replacing ur spark plugs. the may have become fouled. my parents were having the same trouble with their car and that fixed it
Posted on Dec 11, 2008
Okay kThe oil change and octane rating of gas used has nothing to do with your starting problem. I sounds as if you have bypassed the heater coil, and you do have a leaking problem. If so you may have overheated your engine and if so, you need to go to a auto tech, and have a indepth diagnosis done.
Posted on Aug 04, 2008
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Posted on Jan 02, 2017
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I assume you have checked the cooling system to ensure that first, that it is completely full of coolant (not just the overflow tank) with no air locks and second that there are no leaks anywhere and the radiator cap is in good condition. The heater hoses and those pesky little bypass hoses in the cooling system tend to go hard and split after a few years, allowing coolant loss. Those spring type hose clamps tend to be less effective in clamping as the hoses become hard. Worm drive ones are the best to use.
If there are no leaks or air locks, the over heating could also be caused by a clogged radiator (more than 15% restriction in the radiator flow capacity will cause overheating problems), a faulty water pump or a faulty thermostat.
If there are no leaks and water pump and thermostat are working correctly, but undetected loss of coolant once the engine heats up, then it could indicate a problem with the head gasket (Usually caused by allowing engine to become excessively overheated when cooling system has run dry) allowing very hot high pressure combustion gases into the engine water jacket, which super heats the coolant in the engine block, which then boils off, and is released via the cap. If the head gasket is really bad it will leak water into the cylinders and into the oil in the sump. This is indicated by an emulsion of water and oil mix on the dipstick.
If unsure take vehicle to a cooling system specialist and have them do a pressure test and more thorough diagnosis.
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