Question about 1991 Oldsmobile Cutlass Supreme

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My 1991 cutlass cierra oldsmobile is not firing. i replaced the fuel filter fuel pump and the crank shaft sensor. After that it did start up now it is doing the same thing as before just turning over but not starting. There is gas flow and battery spark plugs wires and starter r working fine. But no fire what could it be?

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Hello,

Pull a spark plug wire and put a screw driver in the boot and lay it next to something steel on the engine, do you have a spark?

If so pull a spark plug and see if it is wet, like water wet. Are you low on coolant or loosing it?

These engines have a intake fail issue, the upper intake will not can, but will leak, when it dose it sends coolant down the intake and wets the spark plugs. Crank the engine over a few times before doing this.


The best way to know for sure is to remove the Throttle Body and look inside the intake with a flashlight.

You may be able to get away with removing the screen from the Throttle body with snap ring pliers and opening the butterfly and looking in, but that mesh is very hard to remove and install.

Good luck

Posted on Dec 29, 2010

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