Crank no start
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Junior User
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Crank no start
Shut the truck off, went into the store came back out it wouldn’t start.
2003 F350 175,000 miles
6.0 motor
Had the oil and filter changed yesterday drove six or eight hours before this happened.
Engine seems like it’s turning over hard tried jumpstarting it with a tow truck and jumper box on at the same time.
Have a scanner no codes on it at all since I bought the truck.
2003 F350 175,000 miles
6.0 motor
Had the oil and filter changed yesterday drove six or eight hours before this happened.
Engine seems like it’s turning over hard tried jumpstarting it with a tow truck and jumper box on at the same time.
Have a scanner no codes on it at all since I bought the truck.
Fleet Owner
Joined: Nov 2003
Posts: 27,885
Likes: 3,599
Check out the Tech Folder no-start thread:
https://www.ford-trucks.com/forums/8...condition.html
Also, what oil filter did you use and is your oil filter cap a tall one or an OEM one?
Many scanners aren't the best code readers. What are you using?
https://www.ford-trucks.com/forums/8...condition.html
Also, what oil filter did you use and is your oil filter cap a tall one or an OEM one?
Many scanners aren't the best code readers. What are you using?
Fleet Mechanic
Joined: Jul 2018
Posts: 1,629
Likes: 103
From: Jacksonville Florida
The basics.
Usually, in order for the engine to start, with your scan tool, you look for:
cam/crank sync
FICM sync (the FICM is the Fuel Injection Control Module)
Commanded fuel pulse width (FPW) to ensure that the fueling command is given
ICP pressure of 500 psig
Cranking speed of 150 rpm minimum
Acceptable system voltage (typically over 11 volts)
FICM Main power (MPower) of 46-48 volts, and
FICM logic power (LPower) voltage of over 11 volts
and look at Rpm while cranking. Should be above 150.
Usually, in order for the engine to start, with your scan tool, you look for:
cam/crank sync
FICM sync (the FICM is the Fuel Injection Control Module)
Commanded fuel pulse width (FPW) to ensure that the fueling command is given
ICP pressure of 500 psig
Cranking speed of 150 rpm minimum
Acceptable system voltage (typically over 11 volts)
FICM Main power (MPower) of 46-48 volts, and
FICM logic power (LPower) voltage of over 11 volts
and look at Rpm while cranking. Should be above 150.
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Junior User
Joined: Sep 2019
Posts: 52
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Check out the Tech Folder no-start thread:
https://www.ford-trucks.com/forums/8...condition.html
Also, what oil filter did you use and is your oil filter cap a tall one or an OEM one?
https://www.ford-trucks.com/forums/8...condition.html
Also, what oil filter did you use and is your oil filter cap a tall one or an OEM one?
Hotshot
Joined: Dec 2014
Posts: 17,824
Likes: 3,104
From: Jersey Shore
With all that electrical power behind it, you might have a situation of the A/C compressor being jammed. With equipment, you can check the RPM while starting, or remove the drive belt and see if the cranking of the motor is back to normal speed.
Or you could have a fried starter..... been there.
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Fleet Owner
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Junior User
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The clutch on the AC compressor went out before this happened. So it sounds like that might be the problem. The AC worked good before the clutch went out. Just wondering if I can replace the clutch on it and if that would be why it would be restricting engine from turning over ? or do I need a whole new compressor. Like I said it was working
just the clutch went out that I know of not the compressor ?
just the clutch went out that I know of not the compressor ?
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Junior User
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Thank you, I just have a difficult time searching on this little phone. Most of the time I end up getting a headache and wanting to slam it on the ground Before I can search and find out what I need to know. LOL trying to take the belt off now I’m trying to figure out which probably is the tensioner pulley very hard to see in there
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Junior User
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It was the air conditioner compressor. I took the serpentine belt off and it fired right up.
Now I just need to know if I can bypass the air conditioner compressor or do I have to go install a kit or whatever?
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Junior User
Joined: Sep 2019
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With all that electrical power behind it, you might have a situation of the A/C compressor being jammed. With equipment, you can check the RPM while starting, or remove the drive belt and see if the cranking of the motor is back to normal speed.
Or you could have a fried starter..... been there.
Or you could have a fried starter..... been there.
Do you know if I can skip around the air compressor with a new shorter belt? Or does it require some sort of kit after taking the air compressor off?
Hotshot
Joined: Dec 2014
Posts: 17,824
Likes: 3,104
From: Jersey Shore
I don't know of anyone who has done that. Most of the time the solution has just been to replace the pump. People have asked about just replacing the clutch, but it appears not to be an economical solution with higher mileage vehicles.
