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AMEDEE
AMEDEE, FORD TECHNICIAN
Category: Ford
Satisfied Customers: 26081
Experience:  ASE CERTIFIED TECHNICIAN ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector
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I own a 2003 F150 2WD 4.6 LTR V-8 XLT. Every time I start

Customer Question

I own a 2003 F150 2WD 4.6 LTR V-8 XLT. Every time I start the engine, it runs for about 30-45 seconds then shuts itself off with a puff of air from the K&N air filter assy after it shuts down. I've changed out the Air Mass Sensor assy, still the same problem.
Submitted: 1 year ago.
Category: Ford
Expert:  AMEDEE replied 1 year ago.

Hello and welcome! My name isCustomerand I can assist you with your question. Is the check engine light on? Are there any codes in the computer?

Customer: replied 1 year ago.
There's no check engine light or nothing. Have not checked for any codes.
Expert:  AMEDEE replied 1 year ago.

Got it! Does the engine start right back up after stalling or does it just crank over and not start?

Customer: replied 1 year ago.
it starts back up.
Expert:  AMEDEE replied 1 year ago.

Ok, does it have plenty of power under a load?

Customer: replied 1 year ago.
Have not hauled anything.
Customer: replied 1 year ago.
But sometimes it's gradual power on take-off
Expert:  AMEDEE replied 1 year ago.

So does it accelerate ok?

Customer: replied 1 year ago.
Gradual power on acceleration.
Expert:  AMEDEE replied 1 year ago.

Ok, thank you for that information. The most common cause of this stalling condition at idle is an air/vacuum leak, bad TPS or idle air control motor.

Customer: replied 1 year ago.
Please send pictures.
Expert:  AMEDEE replied 1 year ago.

You bet! Here you go!

Expert:  AMEDEE replied 1 year ago.

I am glad I can help!

It has been a pleasure working with you. Please dont forget to honor your good faith deposit by rating my answer as "Excellent Service" for assisting you today.

Please let me know if you have any further questions.

Customer: replied 1 year ago.
Wouldn't these parts give a check engine light?
Expert:  AMEDEE replied 1 year ago.

Not necessarily. It all depends on how they go bad.