20 Most Recent 1991 Buick LeSabre Questions & Answers

The camshaft sensor on this engine was located on the passenger side of the engine. You will need to remove the serpentine belt, and you can get to it by removing the inner fender or splash guard and get to it that way. I went down from the top. There are two sensors, one is a CRANKSHAFT sensor and other is a cam sensor. Make sure you know which is which. The crankshaft sensor is at the bottom of the engine, the camshaft is right by the water inlet. It is held in by 1 or 2 bolts. If your car is throwing the code for the camshaft sensor, just a heads up. I replaced the sensor and the sensor detects magnets installed on the camshaft. The engine kept throwing the code and came to find out one of the magnets had come off the end of the cam. I am telling you this just in case you go through the replacement and still end up with the code. the camshaft sensor is not too hard to replace, it's tight but it can be done. unbolt the old and bolt in the new. Make sure you disconnect battery before tackling this project. Hope that help some..

Sounds like the timing is too low - if it is electronic timing id check the computer with a code scanner - something not quite right tho... but you dont want to spend good money after bad but.... that can be a bottomless pit!

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ck if you have adequate fuel pressure 30-40 psi. if not it may need a fuel pump and filter replaced.

Got fuel pressure at the motor,spark when cranking ?

check for leaking vacuum line. check the timing setting also check idle control senor

probably in the EVAC system not allowing the system to vent properly get a fault code reading first or you will just be wasting money chasing ideas

Sounds like you have a bad heater core or you have antifreeze leaking in the into the heater box. Maybe a loose clamp on the bypass hose or maybe you damaged the heater core tube when you installed or removed the bypass hose and now it is not sealing properly.

How To Install Remove Rear Door Panel 1st Design Buick LeSabre 00 05...

Make sure fuel filter is clean.

I believe they are 8 X 1.0 MM. They have to be long 3 or 4 inches. Parts stores do rent this tool. Free. You have to put down a deposit. You get it back when you return it.

No...one is your engine radiator ( the big one) which cools engine. The other is not a radiator..it is the air conditioner condenser that releases the heat generated from the air conditioning system cooling the interior of the car.

On the Accumulator close to firewall on pass side

probably unless something is in the track, does it continue down if you push down on it as it goes?

shoul be above the brake pedal...: FAQ How to read older GM codes for free

flasher fuse in fuse panel?

square box fuse in fuse panel replace it

could be bad wires or coil packs. Fuel injectors are notorious for going bad.