Low boost and rougher idle after engine pull - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 07-03-2013, 07:45 PM Thread Starter
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Low boost and rougher idle after engine pull

I pulled my motor this past weekend and did a lot of work to it but of the things I did I think my problem may be in the manifolds I replaced or up-pipes, and I also did the wicked wheel and non ebv outlet and pedestal. When I accelerate it takes until 1850-2000 rpm to build any boost at all. The little rougher idle may be due to the cam sensor but I'm looking for any input on the low boost numbers and unresponsiveness and the rougher idle. Thank you and looking for any input!!!

2002 Ford F-350 7.3L
Regular cab
8 ft. bed 4x4
Isspro EV gauges (pyro, trans temp, boost)
6637 Intake with Donaldson B085011
Ts 6 position performance chip
4" downpipe to a side pipe with 5" tip
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post #2 of 6 Old 07-05-2013, 07:27 AM
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why did you remove it in the first place. ALso, i'm subscribing as well. Mines' doing same thing.

99.5 x-cab 7.3l, 6spd, 161k miles.....
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post #3 of 6 Old 07-05-2013, 08:21 AM Thread Starter
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I had to do oil pan and rear main seal. Manifolds were also getting rusty

2002 Ford F-350 7.3L
Regular cab
8 ft. bed 4x4
Isspro EV gauges (pyro, trans temp, boost)
6637 Intake with Donaldson B085011
Ts 6 position performance chip
4" downpipe to a side pipe with 5" tip
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post #4 of 6 Old 07-05-2013, 08:24 AM
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auto or manual? What type of W.W. you installed? How many miles on motor since re-install. Theres air that needs to be purged out..100miles or so, to get back into its normal condition.

99.5 x-cab 7.3l, 6spd, 161k miles.....
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post #5 of 6 Old 07-05-2013, 08:36 AM Thread Starter
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Auto, 138,000 miles and I've put 150 on since the job. I had trouble with the manifold to up-pipe connection there was a small gap but I got it to seat properly. Could be me just imagining it

2002 Ford F-350 7.3L
Regular cab
8 ft. bed 4x4
Isspro EV gauges (pyro, trans temp, boost)
6637 Intake with Donaldson B085011
Ts 6 position performance chip
4" downpipe to a side pipe with 5" tip
rmb1393 is offline  
post #6 of 6 Old 07-05-2013, 10:07 AM
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i'd put a few more miles on her then check for soot. You could build a boost leak detector and have at it.

99.5 x-cab 7.3l, 6spd, 161k miles.....
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