My 1997 chevy s10 2 wheel drive will crank but won't rev up.

Could be a lot of things ! It could be ignition related or fuel delivery problem . Would have to test to say what is wrong for sure . Pull plug wires off one coil an crank the engine , turn the key to the start position. Do you see an hear a spark ? Buy yourself a fuel pressure gage an hook it up to the fuel rail test port an check fuel pressure . Could have a ignition control module problem , bad crankshaft position sensor , Fuel pump ,plugged fuel filter . Have you ever replaced spark plugs an wires , air filter , fuel filter ?

what you mean is the car turns over won`t fire/start. you need to find out if you are missing fuel or spark. check for codes. if you have no fuel it maybe a pump or plugged fuel filter. if you have no spark then it could be many things. like crank/cam sensor, poor wiring or connections, poor plugs, wires, ignition coil, even possibly a computer. check the first 3 things and go from there.

you'll have to see if its missing fuel,air,or spark.Fuel could be bad fuel pump,air something clogging air filter duct,spark bad coil,or coils,crank sensor.

vacuum lines, to map sensor/ cracked air intake tube check all electrical connections/loose air intake clamps

camshaft sensor,crankshaft sensor.

You need 3 things for your vehicle to start and run.. Fuel, spark and air. If you've recently replaced the fuel filter I'd have the fuel pumps electrical connections checked out. It could possibly be on its way out. Also check all spark plugs, wires and coil pack to make sure nothing is damaged on the "spark system". Then of course make sure the filter is clean and that all of your sensors monitoring the air flow into the throttle body are connected. From personal experience though, I'd say it sound like the fuel pump isn't always doing what it should upon initial start up and that's where I'd direct my attention.

does it produce fire does the gas pressure rise does the crank sensor and cam sensor work

Have you changed your spark plugs and wires?

When the car stops driving, at that time check the starter, if its got very hot, then this can be starter over heating issue. There are many other things to be checked.

Try this troubleshooting: ----If your engine cranks normally but will not start because it has no spark, or it stalls and won't restart because it has no spark, the problem may be due to any of the following:

1) A bad pickup inside the distributor, a stripped distributor drive gear (common problem with plastic distributor drive gears), broken, loose or corroded wires from the pickup to the ignition module or PCM. 2) A bad crankshaft position (CKP) sensor or broken, loose or corroded wires from the sensor to the PCM. 3) A bad ignition module or A bad ignition coil .

4) A bad rotor or distributor cap (cracks or carbon tracks that are allowing the spark to short to ground). 5) Faulty ignition switch.

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You can also do a test to confirm the problem .The procedure to do the test is as follows: --

If your engine has spark plug wires, disconnect one of the plug wires from a spark plug and place the end of the wire near a metal surface on the engine. Then insert a small Phillips screwdriver into the end of the wire (the plug boot), or a small bolt or nail to provide a conductive path. Then crank the engine and look for a spark to jump from the screwdriver, bolt or nail in the end of the plug wire to the engine. If you do not see a spark, there is an ignition problem.

OR---If your engine has a coil-on-plug ignition system with no plug wires, In that case remove one of the coils from the spark plug and insert an old spark plug, a spark plug tester or a screwdriver into the end of the coil. Ground the spark plug or plug tester to the engine, then crank the engine and look for a spark. No spark indicates an ignition problem. Possibilities to be checked in this problem are as follows:-- If the engine has no spark, check for voltage at the coil positive terminal when the ignition key is on. If NO voltage, then problem is on the trigger side of the coil (pickup, crank sensor, ignition module or primary wiring circuit).But If there is NO voltage at the coil itself, then in that case the problem is on the supply side (the ignition switch or ignition wiring circuit). But if the coil has voltage, then problem may be a bad high voltage output wire from the coil to the distributor, hairline cracks in the coil output tower, or cracks or carbon tracks inside the distributor cap or on the rotor. ------A car that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also these problems are related to faulty spark plug. Check the spark at spark plugs when you start the car. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt. If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced. If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the car. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the car. If its very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the car. If the car starts momentarily, then there's a good chance the fuel pump is not working or the car is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gauge and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start.---------- This troubleshooting tips will help you to solve the problem. Thanks. Helpmech.

Are you getting spark to the plugs?? Take off a plug wire and put close to block 1/2" or so)and have someone crank engine-- is there spark?? if yes check ur fuel system--Fuel system could be plugged( filters) or worst fuel pump .