Long cold starts - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 08-07-2013, 03:25 PM Thread Starter
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Long cold starts

I have an 05 Excursion that takes at least 5 (maybe 6) seconds to start. My 04 takes 2 or 3 seconds. It also seems low on power. I likes to downshift more than my truck. Is this a FICM issue? The Ex is all stock with 125,000 miles. My truck (the only thing I have to compare it to) is stock other than the EGR, Cat and muffler delete.

04 F-350 Single Wheel 4X4
05 Excursion
2000 VW Golf TDI (dead)
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post #2 of 6 Old 08-07-2013, 03:50 PM
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Are you running the same oil in each vehicle? Does it seem to fix itself when its warmed up? If it runs better when its warmed up it could be a bad ficm. Mine was bad and it would give the same symptoms as bad injectors when its really the ficm at fault. As far as the downshifting I am not sure. The only real way to find out is to check your ficm voltage. I didn't have a scanguage so I did mine the old fashioned way with a multimeter. here is a video on how to test and remove your ficm.


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post #3 of 6 Old 08-08-2013, 05:40 AM
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x2. Do you have the latest strategies on both trucks?

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post #4 of 6 Old 08-08-2013, 07:00 PM Thread Starter
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Not sure what strategies you mean, but both are stock. My 04 got the latest program from Ford when I took it in for a new warranted EGR valve in 07 or 08. The Ex is what it is. I've only had it since the beginning of June. We have put 5000 miles on it since (up to 125,000). I have an oil change ready to go for the 04. I might just change the oil in the Ex instead since I wasn't the last one to do it.

Also the Ex has what seems to be a driveline vibration. It needed a U joint at the pinion flange that I changed. The vibration is still there, but only half as bad. I'm going to change the rearend oil and look for metal in case the bad U joint took out the pinion bearing. But, I'm also thinking the vibration might indicate a bad injector. That would explain the loss of power and maybe the hard cold start.

04 F-350 Single Wheel 4X4
05 Excursion
2000 VW Golf TDI (dead)
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post #5 of 6 Old 08-11-2013, 02:42 PM Thread Starter
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I had my cousin plug in to my Excursion last night. The FICM is reading at 42 volts when the key is on and 48.9 volts while its running. The fuel pressure is at 579. I cleaned the battery terminals and cleaned the wire that runs the glow plugs. Still have a long cold start. Maybe that's just the way the truck runs.

04 F-350 Single Wheel 4X4
05 Excursion
2000 VW Golf TDI (dead)
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post #6 of 6 Old 08-11-2013, 04:34 PM
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Well the FICM should never be below 46 volts. Were you able to check FICM volts when cranking also?


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4" lift, 5" MBRP TB back exhaust
EGR MIA
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,ported intake, 05-07 intake horn
CCSB
FX4
Firestone airbag suspension in the rear with on-board compressor
Monitored with Edge Insight CS, tuned by Gearhead
high idle mod, Atlas 40 FICM tune, Cat ELC,
2008 taillights, 08 mirrors, smoked marker lights, harpooned fuel tank, DIY headache rack, Bushwacker fender flares
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