Won't start after egr cooler - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 07-30-2011, 04:41 PM Thread Starter
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Won't start after egr cooler

Hi I'm new here. I am a ford tech but don't work on diesels exept at home. A friends truck blew the egr cooler the other day. As he was on his way here it lost power and shut down. It's an 07 btw. I got it here. It was hydrolocked so I pulled the glow plugs and got the coolant out. I did the egr cooler delete and now it won't start. It spins and tries to hit but won't fire on up. I have the ford ids from the shop and icp shows 1000-1200 psi. Ficm shows 48.5v koeo and cranking. I'm getting good fuel to the secondary filter and have good oil pressure on the gauge and it fills the housing quickly. I don't know how the truck was doing before the cooler went. This truck is a wrecker and I haven't talked to the driver. I pulled the intake completely when doing the cooler delete just because I like to clean everything and put new gaskets. I've rechecked everything I touched and can't find anything. And have never had any trouble doing a cooler. Any ideas?
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post #2 of 4 Old 07-31-2011, 10:39 AM
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Just a side note if he lost the egr cooler the main reason is he has a bad oil cooler plugged high deltas causing the egr cooler to go. Need to get some gauge on it after you get it going to see the difference in EOT-ECT max 15* flat ground running 60mphafter 5 min.
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post #3 of 4 Old 07-31-2011, 10:59 AM
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Check the FICM plugs sometimes you think there in but not quite in and also if you didn't do oil cooler while you were there you will be back.

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post #4 of 4 Old 07-31-2011, 11:16 AM
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Yep. If the truck had a failed EGR cooler, that was caused by the oil cooler being plugged and slowing the coolant flow to the egr cooler. The egr cooler overheated and failed. You just treated a symptom and not the cause. Either stop where you are now and tear back into it and replace the oil cooler or the truck will be back to you shortly with another failed EGR cooler and possibly an exploded oil cooler.
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