CAR WONT CRANKS BUT WONT START

Did u check the timing belt. Does it crank over faster than normal?

Hi Delberta, The links below are short youtube videos showing how to fix a car that cranks but doesn't start, In the 1st video this guy tests if it's fuel or electrical.......................................................
Fixing Car That Cranks But Doesn Start Up Fixing Car That Cranks But Doesn Start Up
I don't know if you have a cranksharft OR camsharft position sensor so here's both... I hope this helps...CHEERS.........................
Crankshaft Position Sensor car not starting coil spark

Camshaft Position Sensor P0340 Testing and Replacement HD

If you have fire going into coil and not coming out than replace coil pack. They can become weak and will cause firing to be muted. Coil should read about 13ohms with an electrical tester when disengaged from the cars power supply set on 20+ohms. Anything less needs replacement.

If the crank sensor is open, it will not allow signal for coil pack.

Its a 98 and all the sensors should be changed by now.

Check to see if it has a crank angle sensor

Not sure if you have a 1996 Cadillac Seville or a 1998 Olds Aurora but I would check the Ignition Coil Packs. One or more of them may need to be replaced. Also if you were working on the car and got the wires plugged onto the wrong coils then the firing order sequence would not be correct and this can cause a misfire or backfire conditon.

Ignition wires cannot rest near the primary wire harness of the ignition module, which can cause electrical interference and a no start condition or a misfire condition

On my friends 1997 Cadillac Seville it was easy to replace all 4 coil packs took less than 30 minutes and made the car run much better. Just make sure to get the firing order right. If necessary find a diagram of the correct firing order for you vehicle.

A good place for mail order auto parts is rockauto.com

I have pasted a picture below of what an ignition coil pack looks like

check the fire to the coil pack if it's present then check the pulse to the crank sensor

change crank sensor? if so replace control module (ignition module)

I CHANGE CAM AND CRANK SENSOR,FUEL PUMP,COMPUTER BRAIN BOX AND COIL PACK STILL GETTING NO FIRE UNLESS I JUMP A FIRE WIRE FROM BATTERY

There is a host of things that can cause this to happen. A bad ground somewhere for instance. I bad crank sensor too.