I have a 2004 mustang with a 3.9 it will crank but not start. I have done a scan on it and everything look ok,but the cam sensor reads good and when you unplug the connector it still reads good does t

I have a 2004 Mustang with a 3.9. It will crank but won't start. I have done a scan on it and everything looks OK. The cam sensor reads good but when you unplug the connector it still reads good. Does this mean the PCM is bad?

Cody Mar 05, 2015

Hi Tim cofer, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?
Have you tested your fuel pressure and checked for spark?
Tom Mar 09, 2015

Not necessarily. Does it have fire to the plugs when cranking and does it have fuel pressure to the fuel rail?

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six-of-ten

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Posted on Oct 28, 2008

SOURCE: 2000 ford explorer 4.0 x-engine is stalling, missing and lose power while driving

I personally would check the fuel pressure. Then I would go back to the coil. I have seen brand new bad coils out of the box. The symptoms of a loss of power point to this component, especially if the car idles well, but loses power when accelerating. Please do not rate this reply - we all are left to grasp at straws since you have changed pretty much everything. Good Luck. Please post the final fix of the problem.

Ned C Cook

3433 Answers
Posted on May 05, 2009

SOURCE: no start new crank & cam sensor no power to either sensor

Crank shaft sensor has a clearance specification. It controls the timing. the sensor on the head is an anti knock sensor and won't keep the engine from running. Good luck

Anonymous

76 Answers
Posted on Jun 07, 2009

SOURCE: 2001 jeep grand cherokee 4.0 engine shuts off

it is possable/likely a bad ECTS (engine coolant tep. sensor), this can cause the injectors to allow to much fuel into cylinders and cause a low compression and or flooding situation, good luck, marty

rtpflh

546 Answers
Posted on Oct 13, 2009

SOURCE: 2003 f550 6 litre diesel

check glow plugs.

Anonymous

301 Answers
Posted on Nov 01, 2009

SOURCE: my 2002 mustang GT hasits a misfire on cylinder 3

Clean the mass air flow sensor.

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I have a 2004 mustang with a 3.9 it will crank but not start. I have done a scan on it and everything look ok,but the cam sensor reads good and when you unplug the connector it still reads good does t