No RPM or fuel to the cylinders could be crank position sensor not giving a pulse.
The injectors won't pulse without a signal and I believe the RPM counter comes from the same point.
SOURCE: 95 Explorer 4.0 turns over but fails to start
the fuel pump relay may be stuck on.it should only send fuel when key is first turned on and when the engine is running.
SOURCE: I have a 1992 ford explorer. It stoped and i can't get it to run
The inertia switch that you are looking for is underneath the passenger floorboard carpeting, on the firewall.
SOURCE: 3.0 6cyl 01 ranger - cranks but will not start.
check the fuel filter to see it that is plugged up. When turning the ignition key to on only without trying to start the engine you can hear the fuel pump running for a few seconds if working. If not the pump is bad
SOURCE: 2001 ford taurus will not start. When cranking or
OK, let me help you with the diagnosis without having to do the "Fred Flintstone beat on the fuel tank" thing.
All you really need is a 12 volt test light and a LONG jumper wire.
Since you already know where the inertia switch is (red button in the trunk), this should be very simple for you.Connect one end of the jumper wire SECURELY to the NEGATIVE battery post. Then string the wire back to the trunk (we want to make absolutely certain that we have a known-good ground for our test lamp).
Then connect the cable end of the test lamp to the wire.
Disconnect the connector at the inertia switch. Using the probe end of the test lamp, probe Pin #1 PINK/BLACK (unfortunately, on your vehicle, BOTH wires are PINK/BLACK, so you know which pin to probe, pin #3 is the one that is not used - pin 31 is the one on the other end of the connector.)
Turn the ignition switch to the ON position. Your test lamp should light up for approximately 2 - 3 seconds then go back out. If it does, then you powertrain control relay, your fuel pump relay, the fuses for each of them and the PCM are functioning properly. If it does not light, let me know and we will go on to find out WHY.
If all of this is working, you most likely need a fuel pump. It IS possible that you could have a bad connection between the inertia switch and the fuel pump unit, but it is not very likely and you will have to pull the fuel tank to find out ....So, you may as well put a new fuel pump in if you are going to have to go through all of this anyway.
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SOURCE: 1996 2.2 s10 wont start. has spark and I hear fuel pump when I turn key to start
check the relays
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fuel comes out of schrader valve ? How much fuel ? Need to hook up a fuel pressure gauge and test .Are any DTC'S - diagnostic trouble codes stored in the PCM - engine computer ? Would not have spark if the crankshaft position sensor were bad .
Try spraying carb. clearner into the engine through the throttle plate , if it trys to start you have a fuel problem .
Tachometer
The tachometer is electrically operated and indicates engine speed in revolutions per minute (rpm). The tachometer range is 0 to 7,000 rpm. The tachometer receives the signal through the SCP network from the PCM. If the rpm information sent to the instrument cluster is invalid or missing, the instrument cluster will default the tachometer to 0 rpm.
Also , which engine does it have ? 4.0l SOHC or the 4.6l ?
Camshaft Position Sensor
The camshaft position (CMP) sensor detects the position of the camshaft. The CMP sensor identifies when piston No. 1 is on its compression stroke. A signal is then sent to the powertrain control module (PCM) and used for synchronizing the firing of sequential fuel injectors. The Coil On Plug (COP) Ignition applications also use the CMP signal to select the proper ignition coil to fire. The input circuit to the PCM is referred to as the CMP input or circuit.
There are two types of CMP sensors: the three pin connector Hall-effect type sensor (Figure 25) and the two pin connector variable reluctance sensor (Figure 26).
Crankshaft Position Sensor (Integrated Ignition Systems)
The crankshaft position (CKP) sensor is a magnetic transducer mounted on the engine block adjacent to a pulse wheel located on the crankshaft. By monitoring the crankshaft mounted pulse wheel, the CKP is the primary sensor for ignition information to the powertrain control module (PCM).
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