Ford Edge 2014 AWD 3.5L v6 intermittently hard start even engine cranks (No check light)

[nomi]

It starts perfectly fine in the morning but later in the day engine cranks but it takes time to start intermittently (No check light).

Worked on followings but no luck

• New Battery Replaced
• MAF sensor Cleaned
• New Air Filter Repalced
• New Cabin Filter Replaced
• New Purge Valve Replaced
• New Spark Plugs Replaced
• New PCV Valve Replaced
• No corelation with Refueling

 

Please check the attached video recording.

Edited March 3 by nomi
Added more details

[nomi]

Please check the attached video recording for Morning Perfect Start.

[enigma-2]

My 2009 MKX has done this three times to me. Year or two between events. Always started on second try so I ignored it.

 

My guess at the time was it was related to the immobilizer circuit had gotten the wrong signal or a spike had occurred during the start sequence. 

 

If it happens again and doesn't start on the second try, try disabling (or resetting) the immobilizer by putting the key in, turn to on, then off and wait a few seconds. (With keyless not certain, perhaps push "srmtart" button (goes to accrssory), then off and wait a few seconds for the immobilizer to reset.)

 

I tend to believe that the immobilizer is what's  involved,  inasmuch as the car reacts exactly like the wrong key (or fob) is in the car. 

[nomi]

Thank you very much @enigma-2 for the reply, will find out how can I try this with push start button but I know what you mean.

 

just a wild guess, do you think any corelation with Engine coolant temperature sensor OR O2 sensor?

[enigma-2]

Honestly I would doubt it. You getting any codes when this happens?

[nomi]

I visited ford dealer few days ago for diagnonsis and this is the response I got. (But No Check Light)

IDS TEST. CODE P-0316. EVAP TEST. PURGE VAVLE STUCK OPEN.

VAPOUR CANISTER FUEL CONTAMINATED.

 

PURGE VAVLE is replaced now but the issue is persistent. VAPOUR CANISTER FUEL CONTAMINATED is expensive so I am not doing it at this stage because I doubt it is the reason. (It has no corelation with Refueling)

 

Why I said Engine coolant temperature sensor because it always start perfectly fine in the morning and also when I start immediately ( or ~5 min) after parking.

 

When it is parked for around ~45 min and more then it takes time to start. 

Edited Tuesday at 11:03 AM by nomi

[1004ron]

None of those codes or the engine temperature sensor would prevent the engine start.

 

Puzzled why the Ford Dealership couldn't diagnose the issue.

What did they report following their diagnosis? - did they confirm that the codes were unrelated to the no-start issue?

If the no-start is repeatable with regards the 45 minute wait then you need to make them aware of that and they can diagnose accordingly - could be fuel rail pressure bleeding off.

 

Another thing, is there any other info you haven't disclosed, such as the Ford Dealership doing diagnostics?

[nomi]

Thank you very much @1004ron for your reply.

This is the screenshot of the Ford Dealership diagnostics. please review

 

 

Edited Tuesday at 07:42 PM by nomi

[nomi]

@enigma-2 I tried disabling (or resetting) the immobilizer by putting the fob inside the given slot but it doesn't fix the problem.