I have now seen a few people mention that their engines failed. It is good to centralize this information so that we can see failure modes emerge as patterns. This will help inform the community of the common issues so that we can address or be aware of them. So if you blew your motor, fill in the information below with as much detail as possible. The more details the better but keep your personal information and details off. I will try and keep the OP updated with the information listed.
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Username:
Car and Year:
Mileage:
What failed - piston, rod, injector etc?:
Modifications and tune:
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?):
Any signs prior to failure?:
Warranty?:
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Username: R3d F0x88
Car and Year: 2013 ST
Mileage: 20k miles
What failed - piston, rod, injector etc?: Ford had no idea. They thought it might be a failed injector which leaned the cylinder out. Piston damage possible
Modifications and tune:
COBB CAI
Torries Unleashed 93 Octane Tune
Boomba BOV
Custom 3" Exhaust
Buschur Racing DP
Forge FMIC
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): Cruising then engine started misfiring
Any signs prior to failure?:
Warranty?: Covered
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Username: NicklePlatedCandyMan
Car and Year: 2013 FST
Mileage: 8300 miles
What failed - piston, rod, injector etc?: Cylinder 3 piston has hole
Modifications and tune: Super chips SCR tuner (otherwise stock) ohhhh and yes i did reset to factory tune before returning
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): Took my car out for a night time drive.. drove fine till i hit some traffic.... (BAM) check engine light came on car started shaking badly at idle yet drove fine at speed. Anyway got the car back home and checked engine codes hoping it was some stupid sensor. Codes listed were P0303 (misfire cylinder 3) P0316 (misfire detected at start up) and finally P26DE (which i believe to be a malfunction of the resonator device). The dealer called the following day and informed me that there was a golfball sized hole in cylinder #3
Any signs prior to failure?: See story
Warranty?: Covered
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Username:ScarletBrohanson
Car and Year:2013 silver st
Mileage: 10k miles
What failed - piston, rod, injector etc?:
Modifications and tune: stage 3 93 oct tune from cobb. cobb FMIC, cobb intake, cobb 3" downpipe, 3" agency power exhaust
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): After fixing suspension noise and took for a test ride. car was driving fine and all of the sudden misfire on cylinder 4.
Any signs prior to failure?: None
Warranty?: Not covered
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Username:(WITHHELD)
Car and Year: '13 Focus ST
Mileage: 18,000
What failed - piston, rod, injector etc?:Unetermined - Coolant in number 4.
Modifications and tune:Stage 3 91 OCT Cobb
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?):Driving down road, suddenly no power and limps. Misfiring HARD.
Any signs prior to failure?:Check engines for a few cold days.
Warranty?:TO be determined. He was denied warranty coverage at his dealer, so I made sure there was no record of his visit and Took him to My dealer.
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Username:ST Kevin
Car and Year: '13 Focus ST
Mileage: 13,700
What failed - piston, rod, injector etc?:ford couldn't give me a direct answer all they could tell me was that oil is causing the 1st cylinder to misfire and that its for sure blown and that there "shipping the engine to ford HQ to have the engineers take it apart and find out what went wrong" they told me that a few days ago.
Modifications and tune:93 octane tune from unleashed tuning
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?):it first failed at WOT and got sent into limp mode, i then de-tuned it and then it happened again while cursing then it progressively got worse the next day as i went to take it in to ford
Any signs prior to failure?:went into limp mode a few times before i got the misfire code P0301
Warranty?:so far they said its covered under the warranty, but i think there gonna try and screw me over when they take the engine apart.
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Username:ivehadbetter
Car and Year: 2014 Focus St
Mileage: 11076 When it let go
What failed - piston, rod, injector etc?:Blew a compression ring on cylinder number 1, cycled metal thru the oiling system thru out the motor.
Modifications and tune: Everything is in my signature not gonna list it here.
Modifications and tune:
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): Took it to a dyno day, did 4 fantastic pulls. Made 240/302 on a mustang awd dyno. Drove it home normally in traffic and on the highway. Pulled into my driveway and it lost the cylinder. Deduced that it damaged the ring on the dyno (no clue why) and proceeded to eat itself alive on the way home. It literally gave no warning at all. Sent the data logs out to cobb and they confirmed that everything seemed normal while it was on the dyno.
Any signs prior to failure?: No signs at all. Pulled into my drive way up to my garage put the car in neutral, pulled the e brake and it started idling funny. Opened the door and heard the exhaust note sounded more like a boxer engine than a normal st engine. Gave it a couple revs and CEL came on. Immediately cut it off and pulled plugs. Cyl 1 was so fouled it looked like it had been bathed in oil. Scoped the cylinder the piston looked normal couldn't get a wide enough pan to see the walls. Towed it to the dealership they pulled the head, oil pan, oil filter. Saw metal in the oil pan, cut the filter in half and saw nice size chunks in the filter. Did a dry compression test only produced 35psi on cyl 1. Then performed a wet compression test, only produced 42psi on cyl 1. All other cylinders produced normal operating compression both dry and wet. Deduced it had done it's damage need a new motor.
Warranty?:Long story short I caught an ass hat oil tech being an ass hat oil tech in my car. Took it in a different day for motor mount tsb. I put the car in valet mode using the cobb tuner. I notified the service writer he acknowledged it. The tech doing the tsb work was notified of the tuner he documented it in the system. Ford saw that and washed there hands with it. They offered me a new crate motor installed for 5800. I found a brand new crate motor and am having it installed for much much less. Thru a family friend of a higher up.
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Username: jakebrewer
Car and Year: 2013 focus st
Mileage: ~29k
What failed - piston, rod, injector etc?: chipped piston #1
Modifications and tune: atp gtx28 kit, tbe, intercooler, intake, randy tune, 342whp/326wtq
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): partial throttle, partial boost, tuned for 23.5psi and 11.6afr wot, unsure exact afr during partial throttle pull
Any signs prior to failure?: no pre existing signs
Warranty?: didn't try, building
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Username: Steveb333
Car and Year: 14 Focus ST
Mileage: 4750
What failed - piston, rod, injector etc?: Cylinder 1 Ringlands
Modifications and tune: Cobb intake, roush catback, and Stage 1 Freektune at the time
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): I was cruising when the Ringlands blew off the piston, But was running hot CAI a few days prior.
Any signs prior to failure?: Noticed Cyl 1 ignition correction peeking -5 to -6 degrees. After new short block was still getting the same readings AFTER my tune revision.
Warranty?: New vehicle warranty, put car back to stock before bringing to dealer.
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Username: tude90
'14 14k
Cylinder 4 cracked Ringland
Intake, muffler delete, sctx4 ots
Under warranty new short block, turbo, piping ect.
Started out with bad fuel mileage for a couple months. Then a slight miss at idle for a couple weeks(no codes). Assumed it could of been the recalled harness so when they replaced it I asked them to look into the miss and they turned me away because of my intake. 1 week later it blew. Put intake on and she's been in the shop since yesterday.
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Username: Mikeg1028
Car and Year: 2013 Focus ST
Mileage: 25k
What failed piston, rod, injector etc?:
Not sure yet, compression on cyl 4 is down to 5
Modifications and tune:
Downpipe, FMIC, e30, Catback, intake, Freektune
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?):
The car started with a rough idle after installing the downpipe which i thought was strange but was told it was probably nothing, during a spirited drive the car started to idle VERY rough and let out white smoke from the exhaust.
Any signs prior to failure?: just a little odd idle but that may have been the downpipe
Warranty?: don't know yet.
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Username: fanatic
Car and Year: Focus ST - 2012
Mileage: 42000km / 26000 miles
What failed - piston, rod, injector etc?:
cylinder 4 ringland (i think so...)
Modifications and tune:
gtx2867r, inlet, charge pipes, oil cooler, 200cell downpipe, cold plugs, fmic and many more
Last tune revision was about 380whp and GOOD afr with about 11.4-11.6
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?):
Always drive with cobb ap on, saw then some negative corrections on cyl 4 while driving normally trough town, made then over the day some logs and always when stand some time and then accelerating (partial throttle), cyl 4 starts short time knocking and ign. corr. comes in... When acceleration with wot or mostly wot, all corrections are fine, but when down from throttle the exhaust blew out smoke
Made then compression test:
Cyl 1-3 = 155psi
Cyl 4 = 135psi
Any signs prior to failure?:
Nope...
Warranty?:
No chance
--------------------------------------------------------------
Username:
Car and Year:
Mileage:
What failed - piston, rod, injector etc?:
Modifications and tune:
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?):
Any signs prior to failure?:
Warranty?:
--------------------------------------------------------------
Username: R3d F0x88
Car and Year: 2013 ST
Mileage: 20k miles
What failed - piston, rod, injector etc?: Ford had no idea. They thought it might be a failed injector which leaned the cylinder out. Piston damage possible
Modifications and tune:
COBB CAI
Torries Unleashed 93 Octane Tune
Boomba BOV
Custom 3" Exhaust
Buschur Racing DP
Forge FMIC
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): Cruising then engine started misfiring
Any signs prior to failure?:
Warranty?: Covered
--------------------------------------------------------------
Username: NicklePlatedCandyMan
Car and Year: 2013 FST
Mileage: 8300 miles
What failed - piston, rod, injector etc?: Cylinder 3 piston has hole
Modifications and tune: Super chips SCR tuner (otherwise stock) ohhhh and yes i did reset to factory tune before returning
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): Took my car out for a night time drive.. drove fine till i hit some traffic.... (BAM) check engine light came on car started shaking badly at idle yet drove fine at speed. Anyway got the car back home and checked engine codes hoping it was some stupid sensor. Codes listed were P0303 (misfire cylinder 3) P0316 (misfire detected at start up) and finally P26DE (which i believe to be a malfunction of the resonator device). The dealer called the following day and informed me that there was a golfball sized hole in cylinder #3
Any signs prior to failure?: See story
Warranty?: Covered
--------------------------------------------------------------
Username:ScarletBrohanson
Car and Year:2013 silver st
Mileage: 10k miles
What failed - piston, rod, injector etc?:
Modifications and tune: stage 3 93 oct tune from cobb. cobb FMIC, cobb intake, cobb 3" downpipe, 3" agency power exhaust
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): After fixing suspension noise and took for a test ride. car was driving fine and all of the sudden misfire on cylinder 4.
Any signs prior to failure?: None
Warranty?: Not covered
--------------------------------------------------------------
Username:(WITHHELD)
Car and Year: '13 Focus ST
Mileage: 18,000
What failed - piston, rod, injector etc?:Unetermined - Coolant in number 4.
Modifications and tune:Stage 3 91 OCT Cobb
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?):Driving down road, suddenly no power and limps. Misfiring HARD.
Any signs prior to failure?:Check engines for a few cold days.
Warranty?:TO be determined. He was denied warranty coverage at his dealer, so I made sure there was no record of his visit and Took him to My dealer.
--------------------------------------------------------------
Username:ST Kevin
Car and Year: '13 Focus ST
Mileage: 13,700
What failed - piston, rod, injector etc?:ford couldn't give me a direct answer all they could tell me was that oil is causing the 1st cylinder to misfire and that its for sure blown and that there "shipping the engine to ford HQ to have the engineers take it apart and find out what went wrong" they told me that a few days ago.
Modifications and tune:93 octane tune from unleashed tuning
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?):it first failed at WOT and got sent into limp mode, i then de-tuned it and then it happened again while cursing then it progressively got worse the next day as i went to take it in to ford
Any signs prior to failure?:went into limp mode a few times before i got the misfire code P0301
Warranty?:so far they said its covered under the warranty, but i think there gonna try and screw me over when they take the engine apart.
--------------------------------------------------------------
Username:ivehadbetter
Car and Year: 2014 Focus St
Mileage: 11076 When it let go
What failed - piston, rod, injector etc?:Blew a compression ring on cylinder number 1, cycled metal thru the oiling system thru out the motor.
Modifications and tune: Everything is in my signature not gonna list it here.
Modifications and tune:
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): Took it to a dyno day, did 4 fantastic pulls. Made 240/302 on a mustang awd dyno. Drove it home normally in traffic and on the highway. Pulled into my driveway and it lost the cylinder. Deduced that it damaged the ring on the dyno (no clue why) and proceeded to eat itself alive on the way home. It literally gave no warning at all. Sent the data logs out to cobb and they confirmed that everything seemed normal while it was on the dyno.
Any signs prior to failure?: No signs at all. Pulled into my drive way up to my garage put the car in neutral, pulled the e brake and it started idling funny. Opened the door and heard the exhaust note sounded more like a boxer engine than a normal st engine. Gave it a couple revs and CEL came on. Immediately cut it off and pulled plugs. Cyl 1 was so fouled it looked like it had been bathed in oil. Scoped the cylinder the piston looked normal couldn't get a wide enough pan to see the walls. Towed it to the dealership they pulled the head, oil pan, oil filter. Saw metal in the oil pan, cut the filter in half and saw nice size chunks in the filter. Did a dry compression test only produced 35psi on cyl 1. Then performed a wet compression test, only produced 42psi on cyl 1. All other cylinders produced normal operating compression both dry and wet. Deduced it had done it's damage need a new motor.
Warranty?:Long story short I caught an ass hat oil tech being an ass hat oil tech in my car. Took it in a different day for motor mount tsb. I put the car in valet mode using the cobb tuner. I notified the service writer he acknowledged it. The tech doing the tsb work was notified of the tuner he documented it in the system. Ford saw that and washed there hands with it. They offered me a new crate motor installed for 5800. I found a brand new crate motor and am having it installed for much much less. Thru a family friend of a higher up.
--------------------------------------------------------------
Username: jakebrewer
Car and Year: 2013 focus st
Mileage: ~29k
What failed - piston, rod, injector etc?: chipped piston #1
Modifications and tune: atp gtx28 kit, tbe, intercooler, intake, randy tune, 342whp/326wtq
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): partial throttle, partial boost, tuned for 23.5psi and 11.6afr wot, unsure exact afr during partial throttle pull
Any signs prior to failure?: no pre existing signs
Warranty?: didn't try, building
----------------------------------------------------------------------------------------
Username: Steveb333
Car and Year: 14 Focus ST
Mileage: 4750
What failed - piston, rod, injector etc?: Cylinder 1 Ringlands
Modifications and tune: Cobb intake, roush catback, and Stage 1 Freektune at the time
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?): I was cruising when the Ringlands blew off the piston, But was running hot CAI a few days prior.
Any signs prior to failure?: Noticed Cyl 1 ignition correction peeking -5 to -6 degrees. After new short block was still getting the same readings AFTER my tune revision.
Warranty?: New vehicle warranty, put car back to stock before bringing to dealer.
----------------------------------------------------------------------------------------
Username: tude90
'14 14k
Cylinder 4 cracked Ringland
Intake, muffler delete, sctx4 ots
Under warranty new short block, turbo, piping ect.
Started out with bad fuel mileage for a couple months. Then a slight miss at idle for a couple weeks(no codes). Assumed it could of been the recalled harness so when they replaced it I asked them to look into the miss and they turned me away because of my intake. 1 week later it blew. Put intake on and she's been in the shop since yesterday.
----------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------
Username: Mikeg1028
Car and Year: 2013 Focus ST
Mileage: 25k
What failed piston, rod, injector etc?:
Not sure yet, compression on cyl 4 is down to 5
Modifications and tune:
Downpipe, FMIC, e30, Catback, intake, Freektune
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?):
The car started with a rough idle after installing the downpipe which i thought was strange but was told it was probably nothing, during a spirited drive the car started to idle VERY rough and let out white smoke from the exhaust.
Any signs prior to failure?: just a little odd idle but that may have been the downpipe
Warranty?: don't know yet.
----------------------------------------------------------------------------------------
Username: fanatic
Car and Year: Focus ST - 2012
Mileage: 42000km / 26000 miles
What failed - piston, rod, injector etc?:
cylinder 4 ringland (i think so...)
Modifications and tune:
gtx2867r, inlet, charge pipes, oil cooler, 200cell downpipe, cold plugs, fmic and many more
Last tune revision was about 380whp and GOOD afr with about 11.4-11.6
Under what circumstances did it fail (WOT, cruising, what did you hear and feel?):
Always drive with cobb ap on, saw then some negative corrections on cyl 4 while driving normally trough town, made then over the day some logs and always when stand some time and then accelerating (partial throttle), cyl 4 starts short time knocking and ign. corr. comes in... When acceleration with wot or mostly wot, all corrections are fine, but when down from throttle the exhaust blew out smoke
Made then compression test:
Cyl 1-3 = 155psi
Cyl 4 = 135psi
Any signs prior to failure?:
Nope...
Warranty?:
No chance
