Possible hole out?? - Ford Powerstroke Diesel Forum

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post #1 of 11 Old 08-15-2013, 06:38 AM Thread Starter
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Possible hole out??

I'm hoping I'm just paranoid - but recently the truck just feel's a little off to me?
What I've noticed:
1) slight engine (and yes - verified it was engine only) vibration between 1300 to 1700'ish RPM.
2) Fuel economy has plummeted down to 11mpg (from 16mpg normally)
3) Used to cruise the highway at 70mph at about 1700, now - it's closer to 1900/2000rpm
4) I know the diesel cackle of a 7.3 at idle - but I swear it's louder than usual recently, especially on the drivers side. And at idle - I 'think' I hear a tick, that's louder than the injector solenoid.

No Codes or CES/CEL's being thrown and already checked the harness.
EBPS tube cleaning is on my to do list, (although I think irrelevant at this point)
But I'm wondering if based on those symptoms if it sounds like I may have a hole out (injector failing?)

Thanks for any input.



2003 EX, 7.3L 4inch Lift, Nitto Trail Grappler's, KMC XD Spy's
216k Miles, Currently 605tq, 312hp

Last edited by AzPatMan; 08-15-2013 at 06:44 AM.
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post #2 of 11 Old 08-15-2013, 06:41 AM
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sounds like my truck, for the past 2yrs...

99.5 x-cab 7.3l, 6spd, 161k miles.....
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post #3 of 11 Old 08-15-2013, 09:19 AM
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Patrick, I have a buddy that has a injector tester that we could hook up to your truck... I could see if I could borrow it.?.?

Jeff
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post #4 of 11 Old 08-15-2013, 09:57 AM Thread Starter
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Quote:
Originally Posted by coassist73 View Post
Patrick, I have a buddy that has a injector tester that we could hook up to your truck... I could see if I could borrow it.?.?

Definitely dude! I know I'm also about due for an oil change - so I want to get some new oil in before doing tests.
Was going to see about gett'n Jeff (Rattlesnake18) to bring the AE Laptop with him to pull data as well at the next G2G next week.

But if you can get your friends before then - that'd be great.



2003 EX, 7.3L 4inch Lift, Nitto Trail Grappler's, KMC XD Spy's
216k Miles, Currently 605tq, 312hp

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post #5 of 11 Old 08-15-2013, 03:14 PM
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Could be something as seemingly small as the fuel filter. I know mine starts cackling louder and putting out more smoke when my filter is dirty. Dirty fuel filters also cause the engine and transmission to have to work harder, which drops mileage. I'm not sure how the OD works on the transmission, so I'm not sure whether that is causing your higher RPMs at the same speed.

I know you just put those gauges in, where did you tap the power from? Did it start before or after?

Gene

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PHP Hydra, 4 inch MBRP Exhaust, GTP38R, FRx, DIY Exhaust Brake, T500 HPOP, Hutch/Harpoon,
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post #6 of 11 Old 08-15-2013, 05:16 PM
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Patrick, If you can drive to Aurora this weekend I can work something out more then likely for the scanner. SMS me tomorrow before 2pm.

Jeff
Centennial State Powerstrokes Chapter Historian
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1996 BMW 750IL V12 Monster
2015 Ram 3500 Crew Cab Long Box Cummins
2012 F650 Reg Cab V10 Tow Truck (work truck) (33,300 miles) 21ft Flatbed.

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post #7 of 11 Old 08-15-2013, 05:23 PM
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With your RPM running higher than before, your transmission has to be slipping or the TC not locking. That would cause the MPG drop and could be related to the vibration. What's your trans temp? Also if you have a scanner, check the transmission for codes or slippage. Finally, there is a slight chance that it's the flexplate that's broken and spinning around causing some slip, noise and vibration. Pull the inspection cover and take a look at it.

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post #8 of 11 Old 08-15-2013, 07:29 PM Thread Starter
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well, while I have the truck/trans in Park - I give it a little on the throttle to 1500 for about 10 seconds - and there's a little bit of a shimmy (more than I've seen it do before) to the engine... :/
But - I am due for a fuel filter change now that you mention it Gene - been about 2 years since the last one. I want to do the hutch/harpoon and get a pre-filter kit put on, but that's gonna have to wait a bit.

Jeff, how's Sunday looking for you?

As for the gauges - I don't have the EGT tapped into the manifold yet - that was something I was going to try and do this weekend.
But the trans gauge is hooked up - and I haven't seen it get above 160* yet. So, I'm not sure if I have the sensor all the way in getting splashed by the fluid enough to get a proper reading (unless that's where it should be for normal cruise temp?)



2003 EX, 7.3L 4inch Lift, Nitto Trail Grappler's, KMC XD Spy's
216k Miles, Currently 605tq, 312hp
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post #9 of 11 Old 08-15-2013, 07:39 PM
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Sunday is a no go. I will be out scouting camping spots. txt me tomorrow and maybe we can figure something out. If you can do casa bontia I will more then likley have access to the scanner then.

Jeff
Centennial State Powerstrokes Chapter Historian
2006 Ford F350 6.0 CC Dually Lariat
1996 BMW 750IL V12 Monster
2015 Ram 3500 Crew Cab Long Box Cummins
2012 F650 Reg Cab V10 Tow Truck (work truck) (33,300 miles) 21ft Flatbed.

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post #10 of 11 Old 08-16-2013, 06:37 AM Thread Starter
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Give me a time for C.B that you'll be up there - or shoot me a text when you're on the way up there. I'll be in the area actually helping some friends move.



2003 EX, 7.3L 4inch Lift, Nitto Trail Grappler's, KMC XD Spy's
216k Miles, Currently 605tq, 312hp
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