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Re: Mopar pcm for 6.4
[Re: CRT]
#2605227
01/12/19 12:26 AM
01/12/19 12:26 AM
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Joined: Jan 2011
Posts: 4,785 Utah and Alaska
astjp2
master
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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ModuleGods PCM, jeep guys are using them for the 05/06 PCM's that are failing like crazy and their stuff seems to work better than others. https://modulegods.com/powertrain-control-module-pcm/
Last edited by astjp2; 01/12/19 12:29 AM.
1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: Mopar pcm for 6.4
[Re: CRT]
#2605313
01/12/19 09:35 AM
01/12/19 09:35 AM
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Joined: Jan 2003
Posts: 8,005 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,005
Tulsa OK
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Have you checked fuel pressure, it could be very lean causing your problems?
What code does it have?
68 Barracuda Formula S 340 87 "Chrysler" Conquest
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Re: Mopar pcm for 6.4
[Re: CRT]
#2605320
01/12/19 10:34 AM
01/12/19 10:34 AM
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Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
master
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master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
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Fuel pressure. Lean always pops through the intake.
"use it 'till it breaks, replace as needed"
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Re: Mopar pcm for 6.4
[Re: CRT]
#2605388
01/12/19 02:15 PM
01/12/19 02:15 PM
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Joined: Jan 2005
Posts: 4,243 Charlotte, North Carolina
sgcuda
master
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master
Joined: Jan 2005
Posts: 4,243
Charlotte, North Carolina
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Valve spring is a very good possibility. Haven't seen that issue on the 6.4, but the 5.7's are a regular in our shop. Runs very rough, if it runs at all. It's amazing what a broken valve spring will cause the electronics to default to. Not just a simple fix anymore. You have to think it through. If it's a plastic intake manifold, suspect a vacuum line that fell off, crack, glued in plug that fell out. Is the idle speed higher than normal? If it is, I would suspect an intake issue. If not, I would be looking at valve springs, bent pushrods, etc...
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