1993 Ford Tempo Car cranks but does not start

Tiny
WSCHOENKE
  • MEMBER
  • 1993 FORD TEMPO
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 76,000 MILES
I know that the fuel pump is running and charging the engine before start. I have replaced the plugs, wires, coil, distributor cap, rotor, and distributor pickup. Before the car would start 90% of the time, and at othe times you could turn the key and the car would not even crank. Now it cranks but does not start. I also tried a new ignition switch and that did not make any difference. Does this sound like the PCM is bad? This has been a frustrating problem. The car is like new, so it is worth repairing.
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Saturday, September 11th, 2010 AT 4:39 AM

2 Replies

Tiny
RASMATAZ
  • MEMBER
Do below to determine if its fuel or spark related

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, If you can hear the fuel pump come On- check the fuel pressure with a fuel pressure tester designed for your fuel system to rule out the fuel filter/fuel pick-up strainer/fuel pump/pressure regulator and also listen to the injector/s are they pulsing or hook up a noid light and see if it flashing, If you don't hear the fuel pump, check the fuel pump fuse and fuel pump relay-Depends on what type ignition system is yours, No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, camshaft and crankshaft position sensors and computer Note: If it doesn't apply to your vehicle disregard it meaning if it doesn't come with one ignore it and continue testing
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Saturday, September 11th, 2010 AT 8:43 AM
Tiny
FIXITMR
  • MEMBER
Squirt/get some gas into the intake by hand and crank. If it starts/fires/runs then you got a fuel problem. If it dont then you got a spark problem.
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Saturday, September 11th, 2010 AT 7:24 PM

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