Has to be fuel related
Are you sure the fuel pump is working properly? Do you have a pinched or plugged fuel line>
Disconnect the fuel line off the carburetor and have some one hit the starter. If gas comes out you know it has to do with the carb. itself.
it can be anything, is your check engine light on?
try to get the trouble codes on an obd 1 system by following one of many links for GM trouble codes
if you're overzealous about cleaning that mafs, you might break that fine wire inside & will set a trouble code / go to failsafe mode when you break that part
it can be anything like your ignition coils to various sensors when your vehicle goes into "closed loop" mode
when it's cold, your car goes into "open loop" mode, running from pre-programmed paramaters from the car's brain ecu/ ecm & a bit rich until engine operating temps are reached... then the s### hits the fan when you go into close loop mode
FAQ How to read older GM codes for freeGM OBD Trouble Codes
Two places it can be. Either on the back side of the fuse panel or it is hanging up by the steering column, close to the firewall. It's been a while since I replaced on. But these are the locations. It is the same as the turn signal flasher.
I replaced the ignition on my truck. There should be a plastic shroud on the bottom of the steering column. Locate the screws and remove it. Then see if there is a small hole that a small diameter screwdriver can fit into. This should allow the ignition switch to be removed.
Check the wiring. It could be cause by faulty electrical connections or maybe the electromagnet inside the horn needs rewiring. Check also the diaphragm inside of the horn.
i would get some engine brite its made by Gunk its got an orange cap it usually does a really good job of cleaning up the engine compartment u can probably find it at walmart but u can definitely get it at your local parts store.
i would expect it mean's the wiring harness to the ECU , most likely has a break somewhere and is earthing out , you will need a auto electrician to trace the fault , electrical problems are a nightmare , look on a Oldsmobile internet forum some one may know where to start, or recommend a repairer
may have pinched the thermostat gasket...or thermostat is stuck...remove look for gasket problem or if the thermostat is not in position .. check to see if thermostat opens and closes...may be a bad one!
Check out your local parts house or go online to a parts warehouse and plug in your vehicle details.
First question is, why do you suspect the fuel pump? What have you done to come to this conclusion? Its an old car, does it need a full service? What miles has it done? Have you changed fuel filters if its running poorly.
If you ran a pressure check and it held pressure for 5-15 minutes then that should be good. If the pressure test failed then look around the engine water pump, the coolant hoses, by the freeze plugs on the side of the engine block, around the intake manifold where it bolts to the head(s), and where the head gasket is between the head and engine block just to name a few. Start the engine up from cold and check the radiator cap to see if it has pressure in the coolant system before it warms up (approx. 5-15 minutes). If it hisses when you open up the radiator cap and/or is bubbling thru the radiator/reservoir(may need to raise the engine speed to see the bubbles) it probably has an internal leak like a bad head gasket and that is why you do not see the coolant leaking (it is being burned up inside of the engine). On the other hand if it smells hot then it most likely has a leak on the engine and that is what you are smelling.
