06 f350 sound bad starting
12-16-2012, 12:53 PM
#1
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06 f350 sound bad starting
lately ive been noticing my truck starting to get worse when starting after not running. It sounds bad then after a few minutes its ok. Anyone else experiencing same issues.
12-16-2012, 02:10 PM
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If its a 6.0 diesel you need to check your FICM voltage. It needs to be at 48v. If its not you will have hard cold starts, no starts, and you will start eating injectors. If it has less than 48v you can resolder the circuit board, or you can buy a new power side of your FICM from bulletproof diesel for $500. If it has 48v then it could be stiction in the fuel injector spool valves. Most injector stiction can be fixed with a good 5-40 synthetic oil and Rev-X. Here is the link to the repair procedure http://s202.beta.photobucket.com/use...d/library/FICM
Last edited by 79formula; 12-16-2012 at 02:13 PM. Reason: added link
12-16-2012, 02:30 PM
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12-16-2012, 03:16 PM
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Well put. Good motors if you know a little about how they operate. hard warm starts sounds like a hpop leak since the problem is worse with warm(thin) oil.
Last edited by Rbesola; 12-16-2012 at 03:17 PM. Reason: littleğa little
12-16-2012, 04:48 PM
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yes 6.0, cold starts are the problem. All stock 55k mi, towing 45' fifth wheel 15-17k lbs the trucks been great and this is the first time having an issue.
12-16-2012, 05:21 PM
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I would go out to the truck in the AM before you even start it, take the coolant recovery bottle out, then there is a little access cover on the FICM. Remove the 2 torx screws on the access cover. There will be 4 or seven screws there. Take a multi meter and put one lead on the screw closest to the passenger side, (use care not to make contact between the screw and case), put the other lead on the case. Then have someone turn the key on and record the voltage, have crank it and record the voltage, and also get the voltage while running. It should always be 48v, anything less than 45v will cause issues. Mine was at 28 volts and would not start in winter and killed an injector.
