97 engine missing - Ford Powerstroke Diesel Forum
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Old 09-13-2013, 05:01 PM
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Unhappy 97 engine missing

I have a 97 powerstroke with 268000 miles on it it recently started randomly missing now it has gotten so bad I cant drive it I have checked fuel pressure it stays between 50-55, map signal is in specs, no codes either, icp at idle is 578 and reading 13% on scanner I ran a cylinder contribution test when it first started and number 7 failed I replaced that injector. last week I ran a cylinder contribution test 3 time the first time number 1,2,3 cyl failed, the second time 1,2,7 cyl failed, the the third time just 1 and 2 cyl failed the truck is a automatic so it is not the flywheel cuasing false reading what else do I need to check before condemning these other injectors.neeed help Matt
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Old 09-13-2013, 08:45 PM
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so my 6.0 has whats called a ficm (fuel injection control module) and when the volts get low it can throw contribution codes etc... does the 7.3 have a similar component you can check?
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Old 09-14-2013, 04:43 AM
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I believe it has what is called a IDM (injector driver module) basically similier but I don't know how to diagnos that thing and not setting any codes except when u run a cyl. contribution test with scanner.
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Old 09-18-2013, 05:21 PM
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ok I ran a compression test on all 8 cyl engine cold all cylinders were within 10 psi of eack other from 350 to 340, whats is everyone input on this, the truck has 268000 miles on it should I buy a set of injectors or pull the motor and build it.
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