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#4744712 - 05/01/18 05:11 PM 2009 F150 5.4 3 Valve Engine Seized
PReal Offline


Registered: 02/09/14
Posts: 188
Loc: Houston
164k religious 5k oil changes with full synthetic.

Was driving today and suddenly engine locked up. No drop in oil pressure, plenty of oil on the dipstick,no overheating. No check engine lights no nothing until it locked up while diving then the low oil pressure light flickered. No crazy ticking, no loss in power. Just sudden engine seizure. Took the belt off, didn’t help, pulled 3 plugs, no change.

Starter tries to kick over the engine and it rocks in the engine bay. Got it towed to a local rebuilder that has done 5.4 3v’s in the last week. This truck has literally never had a problem outside of a wheel bearing!

What gives?



Edited by PReal (05/01/18 05:11 PM)
Edit Reason: Spelling
_________________________
2009 F150 5.4
2008 Yukon 5.3
1996 F150 4.9 M5OD
1966 Ranchero 289 T5
1965 Mustang 306 T5

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#4744716 - 05/01/18 05:14 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
thastinger Offline


Registered: 10/23/17
Posts: 68
Loc: VA
broken timing chain prolly that is now bound up somewhere, was it ticking before?

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#4744718 - 05/01/18 05:19 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
Trav Offline


Registered: 11/20/06
Posts: 19612
Loc: MA, Mittelfranken.de
Long shot guess would be timing chain also.
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#4744740 - 05/01/18 05:45 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
zorobabel Offline


Registered: 01/27/11
Posts: 523
Loc: Anaheim, CA
It would be nice if you shared more info about the oil, like weights and brands.
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1997 Maxima 181k, Edge 10w30, K&N HP-1003
2004 Corolla 191k, VWB 5w20 + SSS 10w40, MGL4967

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#4744746 - 05/01/18 05:52 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
FermeLaPorte Offline


Registered: 07/25/17
Posts: 534
Loc: Texas (south)
Don't worry, just use PYB
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Always Mobil 1
2014 1.6L Nissan Versa Sedan, 5 spd, 5k OCI.
2011 3.5L Chevrolet Impala, Automatic, 5k OCI.

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#4744754 - 05/01/18 06:01 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
clinebarger Offline


Registered: 12/19/13
Posts: 2072
Loc: Fort Worth, Texas
Pull all 8 spark plugs! Pulling 3 random ones doesn't mean much.
_________________________
2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/Auto

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#4744776 - 05/01/18 06:28 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
PReal Offline


Registered: 02/09/14
Posts: 188
Loc: Houston
Already at the shop. It’s had a steady dose of castrol, pennzoil, or mobil 1.

Typically 0w20, 5w20 or 0w30.
_________________________
2009 F150 5.4
2008 Yukon 5.3
1996 F150 4.9 M5OD
1966 Ranchero 289 T5
1965 Mustang 306 T5

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#4744777 - 05/01/18 06:28 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
PReal Offline


Registered: 02/09/14
Posts: 188
Loc: Houston
Originally Posted By: PReal
Already at the shop. It’s had a steady dose of castrol, pennzoil, or mobil 1.

Typically 0w20, 5w20 or 0w30.
_________________________
2009 F150 5.4
2008 Yukon 5.3
1996 F150 4.9 M5OD
1966 Ranchero 289 T5
1965 Mustang 306 T5

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#4744793 - 05/01/18 06:44 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
bullwinkle Offline


Registered: 10/09/04
Posts: 7825
Loc: Cincinnati, OH, USA
popcorn
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06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)

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#4744814 - 05/01/18 07:05 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
ctechbob Offline


Registered: 06/12/04
Posts: 187
Loc: Athens, GA
If the engine rocks in the engine bay it wouldn't be the engine that's seized you wouldn't think. In order to rock the starter would have to be torquing against something in the driveline, if the engine is completely seized there should be no rocking.

Just a theory.
_________________________
2008 Acura TL Type S - 140k
2003 Honda Accord V6 - 220k
2000 Honda Accord I4 - 300k
Current Oil - Milesyn SXR5W20/5W30
Current Filter - Partsmaster 61334

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#4744842 - 05/01/18 07:26 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
dan_erickson Offline


Registered: 08/05/10
Posts: 588
Loc: Crown Point, IN
Pretty normal for those 3v junks. Same thing happened to my old managers F-150
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15 Accord Coupe EX-L V6 Navi
Castrol Magnatec 0w20


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#4744843 - 05/01/18 07:26 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
Jooksing Offline


Registered: 03/05/18
Posts: 216
Loc: Chicago
Check the status of that oil. mine had no issues for a month and a half. turn out the "oil" was no good.

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#4744870 - 05/01/18 07:43 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
JLTD Offline


Registered: 12/15/17
Posts: 929
Loc: US
Sorry to hear...it will be interesting to hear what the mechanic finds.

Speculate the main bearings. Or timing chain. Or both.
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Hers: 2008 Jeep Liberty 138k, AMSOIL® SS 5w30/Amsoil

His: 2015 4Runner 41k, AMSOIL® OE 5w20/Wix

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#4744896 - 05/01/18 07:54 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: ctechbob]
mattd Offline


Registered: 10/03/10
Posts: 667
Loc: RI
Originally Posted By: ctechbob
If the engine rocks in the engine bay it wouldn't be the engine that's seized you wouldn't think. In order to rock the starter would have to be torquing against something in the driveline, if the engine is completely seized there should be no rocking.

Just a theory.


This. I would look at the transmission before the engine. A seized engine will only make a “click” sound and no engine movement. With no warning or noise I find it hard to believe the engine is the issue.
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2007 Ford F-350 4x4 6.0 PSD

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#4744936 - 05/01/18 08:24 PM Re: 2009 F150 5.4 3 Valve Engine Seized [Re: PReal]
copcarguy Offline


Registered: 12/06/12
Posts: 356
Loc: PA
I'm guessing driveline not engine also.

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