05 5.4 3valve cam sensor

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06-08-2010, 08:29 PM

jamesyarbrough

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05 5.4 3valve cam sensor

im working on an 05 250 with a 5.4 the check engine light is on the code is po340 cam sensor. ive replaced both cam sensors and cleared the code. it came back on. any ideas besides wiring?

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06-08-2010, 08:31 PM

jamesyarbrough

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also i need a jack set for my 04. anyone know where to get one besides ford house?

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06-08-2010, 08:31 PM

BigBlockOBS

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Its most likely the alternator.

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06-08-2010, 08:37 PM

jamesyarbrough

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how would that throw a cam sesor code?

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06-08-2010, 10:16 PM

jamesyarbrough

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thanx for all the in depth info. i love this site its full of smart people.

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06-09-2010, 07:17 AM

BigBlockOBS

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Interference. If you have an oscilliscope you can do an alternator ripple test. Its a known problem on the 5.4 3v.

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06-09-2010, 12:20 PM

truck4546969

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i have a vct timing sensor the one that goes inside the head and can be seen from the valve cover

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