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new spark plugs this decade. (a tune up?0
the filter is part of all 60k tuneups. letting it clog wrecks good pumps.
my wild guess, its lack of fuel flow, do to old filter.
or low fuel pressure.
car is identical to a Corolla. so is not unique or rare as some Geo cars are.
the cam belt not changes, invites valve kissing piston tops. BOOM
end of engine. (costs more to fix then worth of car)
the word is bogging, my engine bogs
if if bogs WOT (wide open throttle) and dont catch up < ITS NOT THE TPS. ever.
tps bad causes short bogs, called hesitations.
The map sensor , is what measure air flow and the ECU matches fuel to this air flow.
my guess, is it does that, but fuel pressure is like 15PSI, bad.
Sounds like either your fuel pump and or fuel filter is bad. Change fuel filter first and try the hill. If it still bogs down sounds like fuel pump is almost ready to die. Get a pressure test run on fuel pump.
If above does not work then it maybe maybe your catalytic converter. Have it checked. Good luck
FUEL FILTER,,IF IT IS OLD-REPLACE!
FUEL PUMP NOT REALLY SUSPECT.....BUT POSSIBLE AS IN A THERMAL SHORTING (AFTER A SHORT TIME)
YOU HAVE TO DETERMINE WHETHER THIS DELAYED STALL ISSUE, IS COMING FROM A FUEL OR ELECTRICAL MALFUNCTION. IE: ELECTRIC CUT OUT...SUDDEN LOSS OF POWER...FUEL ISSUES: ROUGH RU..THEN SHUTS DOWNNING, BUCKING & SURGING
IF YOUR NOT FIXED...JEFF AT: JLGPROP@!YAHOO.COM THE WORX GROUP L.L.C.
That sounds like a fuel flow problem. I would start off changing the fuel filter and doing a pressure check on the fuel pump!
I would also suggest you test the fuel. If it has water in it, that could also cause similar symptoms. A poor mans check on fuel is to put some in a styrofoam cup and if it doesn't disolve the bottom of the cup in under 20 seconds, your fuel is contaminated.
Sounds like either you have a clogged fuel line and or clogged fuel filter or the fuel pump is failing. What happens when the vehicle runs the fuel pump heats up, as it heats up it produces less and less fuel for your car. Eventually ti stops working until its cool again on faulty pumps. Given the age of your vehicle I would say you need to replace both pump and filter.
Fuel pump. It may have some pressure but not enough pressure to run the car properly. We just had to replace the pump on my son's 97 s10. It had a little pressure but not enough to run. Would start up and die as soon as you started into the throttle. They can check the pressure at a repair shop - you need a special guage.
You need to take a pressure and volume measurement, most fuel pressures for a carburetor engine are 3 to 7 psi, then you need to make sure the volume is consistent for a period of time, 20 to 30 second of engine cranking while the fuel is transferred to a container of some sort, make sure the ignition system is disabled to prevent you from blowing up the property.
fuel pump sound like a good place to start it may not be getting enough pressure to the fuel thus not sending enough of it at a time to explain why it runs good sometime i think it is primeing and filling the lines once it shuts off and so for a litle while it has enough gas but one you use the gas that was ready in the line it can't get enough to run correctly. have it tested.
Have you checked/tested the fuel pressure? sounds like a bad pump and or plugged fuel filter, check the pressure, if it is low replace the filter, if that still doesn't help you will need a new fuel pump, it is located in the fuel tank.