Is the check engine light on when the engine is running ?
Someone will need to check for spark on all cylinders and fuel pressure.
You might try spraying carb cleaner or starting fluid into the throttle body to boost fuel supply and see if it helps. If it does that would tell you its a fuel problem.
SOURCE: 97 buick skylark wont start
if starter fluid made it chug, I would suspect fuel pump fuse, relay or pump, also fuel filter.
SOURCE: 91 buick wont start
Have you tried replaceing the ECM module?
This is located under the distributor cap.
It will be screwed down possibly.
Usually with PHILLUPS SCREWS (2).
This is an electronic part so it is crucial you are careful with it and keep area around and near as clean and dry as possible.
NOT an extremely hard job but can become hard if screws or parts get damaged or wires get crossed trying to remove them.
Also you can damage other things during process of removal and installation if not careful.
TO REPLACE ECM (if equipped) (To find out if your car has one you can call parts house such as O'Riellys and ask them.): Remove distributor cap being careful not to remove more than one sparkplug wire (Fireing order will be required to put them back if you dont know which came from where.)
After removing cap remove rotary button.
ECM should be lying flat in bottom of distributor.
Wires will be running to it. Again BE CAREFUL. Dont distroy connectors or wires.
Replacement of ECM module is as simple as removing and replaceing with identical replacement part.
If new doesn't look like old part INVESTIGATE to be sure replacement part will suffice.
Replace all parts and connections. (Then I recommend you stop and gather yourself and go over reinstallation just to be sure you didn't forget or miss anything.)
Remove all tools from work area under hood.
If this was your problem your engine should easily START.
SOURCE: My 91 buick skylark won't start. The battery is
More Information pleas, but I think it might be the neutral safety switch. Try starting the car in Neutral and see if it starts, if it does you need to have the NSS, replaced.
SOURCE: 96 tacoma, ran fine, parked it and now it won,t
are you sure you getting fuel even though you have new fuel filter, check all fuses under the dash to fuel pump and relay under the hood, are you getting sparks? check rotor, cap, coil...make sure you getting 2 important items, gas and fuel to the engine. hope that help some
SOURCE: i need the firing order for a 1971 buick skylark
Here is the firing order for that vehicle and engine, that is if it does have a Buick engine with the distributor mounted on the front of the engine, but if the distributor is mounted on the back of the engine then it is an Oldsmobile engine and I have that firing order diagram also if you require it.
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