Jul 142017
 

2000 Ford F150

Starting problems

I’m having starting problems. It cranks over just fine but will not fire. This has happened 4 times in the last 3 years. After letting it sit over night, it will fire right up as if nothing had been wrong.
I’ve tried doing the following with no positive results;

1. Sprayed starting fluid in the intake while cranking the engine.
2. Tried locking/unlocking the door to see if it was a security/anti-theft issue.
3. Installed a new battery.
4. Installed a new fuel filter.
5. The ignition key is the chip type, so I tried using my spare key.
6. Disconnected the battery then reconnected it after a couple minutes.
Please help me resolve the problem.


Is the check engine light on?

First if there is a check engine light on it would be the best place to start. Pull any codes and post them below in the comments. For now we will assume the check engine light is not illuminated. Next we need to determine what the engine is not getting when it will not start.

Once we know what the engine isn’t getting we can concentrate on the “Why” of your starting problems. Since you tried spraying starting fluid in the engine and got nothing there is a good chance you do not have spark. This would be a common cause for starting problems. We can check for spark and confirm this with a spark tester.

Shop Automotive

Engine Ignition

The ignition system consists of the following:
The ignition system is:
  • an electronic distributorless ignition system (EDIS) controlled by an electronic engine control (EEC) integrated into the powertrain control module (PCM).
  • set at 10 degrees before top dead center (BTDC) for base timing and it is not adjustable.
The ignition coil :
  • changes low voltage pulses from the powertrain control module to high voltage pulses.
  • sends high voltage pulses to the spark plugs through the spark plug wires.
  • has three transformers.
  • has six spark plug wires, one to each end of each transformer.
  • is mounted on top of the intake manifold.

Spark plug wires carry high voltage pulses from the ignition coil to the spark plugs.

The spark plugs:
  • change high voltage pulses to spark at gap which ignites fuel and air mixture.
  • have a platinum-enhanced active electrode for long life. The active electrode is different for LH and RH sides.

Original spark plugs on the RH side (cylinders 1, 2 and 3) spark plugs are AGSF-34EG.

Original spark plugs on the LH side (cylinders 4, 5 and 6) are AGSF-34E.

Replacement spark plugs are AGSF-34EE; the electrodes are platinum-enhanced and can replace either a RH or LH spark plug.

The crankshaft position (CKP) sensor:
  • is a variable-reluctance sensor.
  • senses a missing tooth on crankshaft damper pulse ring.
  • generates a crankshaft position signal which is sent to the powertrain control module. The powertrain control module counts this signal for engine rpm and spark advance.

  3 Responses to “Starting problems 2000 Ford F150”

  1. Thanks for your response. The “check engine” light does not come on. There was no spark using the spark tester. I lightly tapped on the CKP sensor to see if that would do anything but the was no change.
    You mentioned to pull any codes & post them. I don’t have a diagnostic machine to do this & I am not familiar with them. What machine would I need & if I they are expensive, could a person rent one? The problem is that the diagnostic machine must be used while the truck is not starting. I’ve had the truck towed to several repair shops but by the time they got to doing the testing, the truck was starting (problem was gone). The last time my engine quit I called several repair shops to try & get someone to come to the truck & do a diagnostic test but they couldn’t pull anyone off the job they were on.
    Is it possible for a novice like me to buy or rent a machine the next time the truck stalls out & run a diagnostic test myself?

  2. This is Mike Saru, the guy that wrote the response above. I hit the wrong key on my iPad so disregard this reply but please respond to the “response” above.

  3. See #2 above.

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