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Old 02-14-2012, 12:13   #1 (permalink)
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05 taurus, Vulcan, starting problem with warm engine

It happened three times: when engine is warm, it needs like ten times turning the key to start, nothing happens in the first nine times. All lights in cluster are normal plus fuel pump sounds initially, battery is good (has been checked). Car runs well after start. What's the prolem? thanks.
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Old 02-14-2012, 12:40   #2 (permalink)
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Re: 05 taurus, Vulcan, starting problem with warm engine

Take it you have checked the obvious first , i.e the spark plugs ?
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Old 02-14-2012, 16:33   #3 (permalink)
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Re: 05 taurus, Vulcan, starting problem with warm engine

Went to Auzone this afternoon. No code, battery and alternator are good. thanks.

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Take it you have checked the obvious first , i.e the spark plugs ?
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Old 02-16-2012, 19:40   #4 (permalink)
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Re: 05 taurus, Vulcan, starting problem with warm engine

If tune up is up to date (ie spark plugs, air filter, even an oil change etc) then I'd get a fuel pressure test done. Ford dealers (good ones at least) are good at diagnosing problems like this, as they see it often enough on their older vehicles.

It could be anything from a fouled plug or two, bad starter, crank sensor gone bad, to low fuel pressure.

It doesn't always work, but to try the fuel pressure test for yourself, before starting it after you turn the key, leave it in "run" for 15 seconds and then start it. This will allow the fuel pump to build pressure and if it starts without issue you've narrowed it down. A clogged fuel filter can also hamper flow enough to cause engine hesitation.
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Old 02-17-2012, 19:31   #5 (permalink)
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Re: 05 taurus, Vulcan, starting problem with warm engine

thanks, but no crank at all. I assume the fuel line is good because the engine start every time if it gets crank. Will check the ignition coil back tommorrow. Any suggestion is appreciated.

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If tune up is up to date (ie spark plugs, air filter, even an oil change etc) then I'd get a fuel pressure test done. Ford dealers (good ones at least) are good at diagnosing problems like this, as they see it often enough on their older vehicles.

It could be anything from a fouled plug or two, bad starter, crank sensor gone bad, to low fuel pressure.

It doesn't always work, but to try the fuel pressure test for yourself, before starting it after you turn the key, leave it in "run" for 15 seconds and then start it. This will allow the fuel pump to build pressure and if it starts without issue you've narrowed it down. A clogged fuel filter can also hamper flow enough to cause engine hesitation.
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Old 02-17-2012, 19:35   #6 (permalink)
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Re: 05 taurus, Vulcan, starting problem with warm engine

Was the starter tested? If the engine doesn't crank but ticks consistently, then the battery is dead, or toast.

While you're under the hood, make sure everything is tight, even if you don't remember working on it.
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Old 02-26-2012, 14:51   #7 (permalink)
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cool Re: 05 taurus, Vulcan, starting problem with warm engine

Where you say the warning lights and everything else stays on when turning the key on, we can rule out the battery. No crank with no click wiggle the small solenoid trigger wire while someone holds the key in start. If it then cranks the issue is the trigger wire connector terminal. Change it out, replacement is available at the Ford dealer. If it doesn't crank disconnect the trigger wire. With a test light clipped to the negative cable clamp probe the trigger wire connector terminal. Have someone turn the key to start. The test light should turn on. Next, with the key off probe the heavy red battery cable connection at the starter. Test light should light up. If the test light turns on as described, you have a bad starter motor.
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Old 05-06-2012, 11:50   #8 (permalink)
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Re: 05 taurus, Vulcan, starting problem with warm engine

Starter problem. Got a new one. The car works well now. Thank you all.

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Where you say the warning lights and everything else stays on when turning the key on, we can rule out the battery. No crank with no click wiggle the small solenoid trigger wire while someone holds the key in start. If it then cranks the issue is the trigger wire connector terminal. Change it out, replacement is available at the Ford dealer. If it doesn't crank disconnect the trigger wire. With a test light clipped to the negative cable clamp probe the trigger wire connector terminal. Have someone turn the key to start. The test light should turn on. Next, with the key off probe the heavy red battery cable connection at the starter. Test light should light up. If the test light turns on as described, you have a bad starter motor.
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