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AMEDEE
AMEDEE, FORD TECHNICIAN
Category: Ford
Satisfied Customers: 24427
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: 5 months ago.
Category: Ford
Expert:  AMEDEE replied 5 months 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 5 months ago.
There's no check engine light or nothing. Have not checked for any codes.
Expert:  AMEDEE replied 5 months ago.

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

Customer: replied 5 months ago.
it starts back up.
Expert:  AMEDEE replied 5 months ago.

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

Customer: replied 5 months ago.
Have not hauled anything.
Customer: replied 5 months ago.
But sometimes it's gradual power on take-off
Expert:  AMEDEE replied 5 months ago.

So does it accelerate ok?

Customer: replied 5 months ago.
Gradual power on acceleration.
Expert:  AMEDEE replied 5 months 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 5 months ago.
Please send pictures.
Expert:  AMEDEE replied 5 months ago.

You bet! Here you go!

Expert:  AMEDEE replied 5 months 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 5 months ago.
Wouldn't these parts give a check engine light?
Expert:  AMEDEE replied 5 months ago.

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