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Re: 98 sts stalls and then wont crank over
You do know all gm motors are haunted by a problem called fuel lock .it is a pressure lock just behind intake line feeding fuel.gm has claimed to have gotten rid of this problem but i still see it from time to time.try changing fuel pump
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This is most likely your crank position sensor.... it sits behind your harmonic balancer and tells the PCM what position the crank shaft is at at all times. These sensors aare around 30 dollars at a local parts shop but you will need a pulley puller and a good impact wrench to remove the balancer
Is the Service Engine Soon (or Check Engine) light illuminated on the instrument panel? If so, then have someone pull the codes and post them back here. Autozone will do this for you at no cost.Caution: don't purchase any parts after reading the codes on their recommendation! If no codes, then suspect either a bad crankshaft sensor or camshaft sensor. There are other possibilities too, but these are primary. I have seen MANY bad crank sensors do exactly what your describe without setting a code.
there is only two things left. the crank sensor that is located at the top of the transmission bellhousing or the pick up inside of the dist. it is that black plate that sits between the cap and the dist housing. hope that helps.
I know this is going to sound stupid, but I've done it before, did you put he car in park? You might also want to try it in neutral also. If neither of these two tests work, you can try to jump across the solinoid on the fender well. Don't stand in front of the car, and make sure that the parking brake is set, just in case it starts and tries to run you down. If jumping across the two big posts cranks the motor, chances are either the solinoid or the electrical half of the ignition switch is bad.
sounds like coil problem, coils will start cold then get hot and stop. when coil cools will crank up and run till it gets hot, try to replace the ignition coil,dont think it would be a crank sensor, try a coil,thanks robert b.
okay try this....talk to your parts store and get a battery load tester, and find out if the battery is indeed dead. My guess is it sounds like the Altenator is dying. they are around 50-100 and can be install by a pro in minutes.