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Old 08-02-2012, 10:03 AM
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Exclamation I dunno what's wrong!!!

Ok. I have an 03 6.0 with about 238000 miles on it. I just got this truck about a week ago. They guy before me said it had head gaskets around 110,000 miles and 3 injectors replaced. I test drive it with no lights on and motor runs pretty good. Well I got it home parked it and drove it to work the next day. As I was accelerating in 1st 2nd the motor would kinda misfire at lower to mid rpms. After 40 or so it would clear up. When the motor has been driven for about a few miles it clears up. Well the other day it did the misfire thing and cleared up but about a mile from home i kinda got on it alittle and the motor seemed like it lost 4 cyl and the truck would barely pull itself down the road. Well I got home(somehow) and parked it for a few hours. Went back out and cranked it it took about 5-10 seconds but it started and ran like nothing ever happened. Every once in awhile there are puddles of coolant on the ground but not every time I drive it. It's not blowing out the degas bottle and doesn't seem to be coming from egr valve. Oh. I was told to unplug egr valve so I tried it with no change. No programmers have been on this vehicle. Any help would be great. I just don't want to have to pull the cab for head gaskets and studs
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Old 08-02-2012, 10:10 AM
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I would return it and demand my money back
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Old 08-02-2012, 10:33 AM
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Are you monitoring the truck? Any EOT or ECT temps? EGT? Are you seeing any smoke? Where is the puddle of coolant?
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Old 08-02-2012, 10:52 AM
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Ya. The guy isn't answering And no bi don't have anything to monitor with. I have a buddy that has a scanning tool Ima check and see if there are ejector codes or anything. The puddle is under the drivers side under the motor. But I'm not losing that much coolant. That's why I'm confused.
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Old 08-02-2012, 10:54 AM
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Could be puking and the coolant is from the degas bottle. Any white "stains" on the coolant bottle? Smoke at startup?
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Old 08-02-2012, 06:33 PM
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No smoke at startup. Only smokes black when revved up. Nothing around the degas bottle no white. No dried coolant.
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Old 08-02-2012, 06:38 PM
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not sure about your coolant issue but it does sound alot like a FICM issue. Check your FICM voltages.
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Old 08-03-2012, 08:58 AM
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What's the easiest way to check that
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Old 08-03-2012, 09:15 AM
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Got a good question. Will low voltage from my alternator or battery cause my FICM to mess up? My battery light has been coming on. Maybe that's a possibility
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Old 08-03-2012, 10:03 AM
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Yes, low voltage kills FICMs
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coolant, egr, hiccup, miss, stall

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