ficm
#1
ficm
A little background on the truck.
I just got done doing a headgasket job on a 2003 6.0. The truck had a known Hg problem for at least a year with excessive pressure in the coolant bottle. It all of a sudden started running very poor and wouldn't accelerate. After the headgasket replace with headstuds it started very nice but you could tell had a miss. It ends up being cylinder four isn't firing. It will start right up when cold and run for maybe 1 minute until it completly shut down the left side running on only four cylinders. I was instructed to check the ficm so I try the test for the seven pin and I get under a volt. I've read a lot about the same situation on the ficm but those truck did not start at all. All fuses and relays check good
I just got done doing a headgasket job on a 2003 6.0. The truck had a known Hg problem for at least a year with excessive pressure in the coolant bottle. It all of a sudden started running very poor and wouldn't accelerate. After the headgasket replace with headstuds it started very nice but you could tell had a miss. It ends up being cylinder four isn't firing. It will start right up when cold and run for maybe 1 minute until it completly shut down the left side running on only four cylinders. I was instructed to check the ficm so I try the test for the seven pin and I get under a volt. I've read a lot about the same situation on the ficm but those truck did not start at all. All fuses and relays check good
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She still has a problem.....
It runs decent but now is lacking power. It feels like its towing a massive load. The granny isn't in good shape but it wasn't before and never acted like this so im ruling that out. The turbo was cleaned less than a week ago as was the exhaust pressure sensor and tube. Egr is deleted with a sinister kit, head gasket was just replaced with arp studs and new stand pipes. Intake is a cold air k&n kit. Has a 4 inch DP.I checked the ic boots and they all are in good shape. When the owner gets home from work I am going to check voltage on the ficm I did a vgt relearn and drove mixed driver for probably 30 miles and ran the **** out of it and still it has no power like it used to. The owner installed a tune from a sct livewire and you couldn't tell
It runs decent but now is lacking power. It feels like its towing a massive load. The granny isn't in good shape but it wasn't before and never acted like this so im ruling that out. The turbo was cleaned less than a week ago as was the exhaust pressure sensor and tube. Egr is deleted with a sinister kit, head gasket was just replaced with arp studs and new stand pipes. Intake is a cold air k&n kit. Has a 4 inch DP.I checked the ic boots and they all are in good shape. When the owner gets home from work I am going to check voltage on the ficm I did a vgt relearn and drove mixed driver for probably 30 miles and ran the **** out of it and still it has no power like it used to. The owner installed a tune from a sct livewire and you couldn't tell
Last edited by billiard; 09-29-2011 at 04:00 PM.
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