Slow Crank
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Slow Crank
I have a 06' F-250 6.0 PSD, whenever I first get to my truck, either in the morning, or whenever it sits around for a while, there is always a very slow crank, reguardless if I allow the glow plugs to warm up fully or not. Iv spoken with some friends of mine after work when they hear how long it to takes for my engine to kick over, and they had said that it shouldnt take as long as it is. Are there any sugestions as to the problem, if there is a problem, or maybe how to fix to slow crank?
Logistics Pro
Joined: Dec 2004
Posts: 3,541
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From: Weatherford Texas.
saw this on another site, check tightness of battery connections, should'nt be able to move them, also check the tightness of the ground strap the bolts to the block (not sure where it is). Could be a bad battery maybe some one else will have an idea.
Postmaster
Joined: Sep 2005
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From: Florence,SC
cranking or starting? if its cranking then check your batteries. even if the glow plug light is off the glow plugs still are on for up to 120 seconds given oil temp. if its starting problem it could be hpop problem, injectors etc.
Cargo Master
Joined: May 2006
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From: Florida
Originally Posted by BowTieHatr
cranking or starting? if its cranking then check your batteries. even if the glow plug light is off the glow plugs still are on for up to 120 seconds given oil temp. if its starting problem it could be hpop problem, injectors etc.
Cargo Master
Joined: May 2006
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From: Florida
what i am curious about is . what happens besides fuel pump priming and glow plugs heating up when key is placed in on position? is fuel pumped into the cylinders during key on phase? as i was told by someone to cycle the key on and off a couple times to help with this.
More Turbo
Joined: Mar 2003
Posts: 639
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From: Cool Arizona
Originally Posted by usafsf
I have a 06' F-250 6.0 PSD, whenever I first get to my truck, either in the morning, or whenever it sits around for a while, there is always a very slow crank, reguardless if I allow the glow plugs to warm up fully or not. Iv spoken with some friends of mine after work when they hear how long it to takes for my engine to kick over, and they had said that it shouldnt take as long as it is. Are there any sugestions as to the problem, if there is a problem, or maybe how to fix to slow crank?
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Post Fiend
Joined: Apr 2004
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From: Great State of Texas
Welcome to FTE and the 6.0 forum usafsf
When you get a chance you might want to cruise over to our Tech Folder for some great 6.0 info.
https://www.ford-trucks.com/forums/showthread.php?t=303583
Please take a few moments to read our site guidelines as well.
https://www.ford-trucks.com/guidelines.html
When you get a chance you might want to cruise over to our Tech Folder for some great 6.0 info.
https://www.ford-trucks.com/forums/showthread.php?t=303583
Please take a few moments to read our site guidelines as well.
https://www.ford-trucks.com/guidelines.html
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From: Las Vegas
This may be posted somewhere else, I havent looked, but on my old 7.3 (and I'm assuming the 6.0 is the same) if the engine computer doesnt "see" 100+ RPM's when cranking, you will have a hard time getting it to start, if you crank it long enough it will. Believe me it is very hard to tell if your at or just below the magical 100 RPM's. The cause in my case was one of the batteries was almost toast (had 1/2 cranking capacity it should have).
This is what was explained to me, and the new battery (under warranty I might add) cured the problem instantly. You will be surprised to know how much agravation I had to go through to find this peice of information, so I suspect it may not be very widely known) or maybe I'm the only one who didnt know !!
This is what was explained to me, and the new battery (under warranty I might add) cured the problem instantly. You will be surprised to know how much agravation I had to go through to find this peice of information, so I suspect it may not be very widely known) or maybe I'm the only one who didnt know !!
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