RS Failed/Leaking Head Gasket Data Collection
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TimestampFocusRS.org Forum Screen-name?Vehicle - Model Year? [Model Year]Vehicle - Last 4 of VINVehicle - Build DateVehicle - Stock / Modifications?Initial Symptoms - Mileage?Initial Symptoms - What did you experience?Service - Mileage When Issue Confirmed?Service - Dealer's Diagnosis?Service - Dealer's Action / Resolution?Service - Time to Resolve?Resolved - Has Issue Been Fixed?Resolved - Miles Driven Since Fix?
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9/22/2017 1:30:53ALEX13MOD2016531906/01/2016Stock15100Bogging at cold start sweet smell white smoke.15100Cylinder Head CrackedNew engine Replacement 90Yes2000
3
9/21/2017 18:56:22Alphadark2016528405/25/2016Stock15000Low coolant, rough idle15800Head gasket failurePending30Maybe0
4
9/22/2017 1:22:14AS037920162966
upgraded FMIC
green filter
upgraded turbo BPV
pro tune
hard shuddering on cold/warm startup
dense white smoke from exhaust
sweet odor inside cabin and outside from exhaust
fouled white scorching on plugs
Cyl #3 misfire code (intermittent)
extremely noticeable drop in coolant level
oil/coolant milkshake
loss of power
14191Entire longblock replaced along with turbo, flywheel, and clutchMaybe
5
Justin5533Stock6000Started the car up early on a cold morning car was super rough. Sounded like and felt like missing a cylinder. Cel light popped p0304. Misfire on cylinder 4. Took it into for the next morning they changed out the sparks and coils. Light went off for about idk 2 weeks popped back on. Only this time I noticed my cooliant almost empty. Started reading on forums and facebook. Found people were getting white smoke so i decided to wait for the next morning when the car would be for sure cold start. Got behind it right after I started it and sure enough white smoke very small but not the usual exhaust. I knew than and there it was the engine and nothing small. Took it into ford again the next morning. 8000Just got off the phone with ford service. They have decided to ship the engine to Ford corp. Ford wants the engine seems this is starting to happen to what they said 7 cars. My service said they looked and thought it was the head but the head was fine. In the cylinder they found a scratch of some type that they think was causing the leak and the overheating. But in my opinion at least ford corp is aware and wants my engine to dissect it and find out whats causing it. Did something fall in and where did it fall in? Anyways thats all the info I have im waiting till tomorrow to find out how long a new engine will take im hearing 2-3 weeks but I dont know.
6
9/21/2017 21:59:09Oroxil2016465604/29/2016Green air filter23000Rough idle, p0303 code shows on my Waylens camera23394P0303, P0316 Coolant in cylinder, head was warped, 2 tappets damaged.
Replaced head, head gasket, 2 tappets, front cover gasket, front crank seal, valve cover gasket, exhaust gasket, coolant bypass gasket and intake gaskets. Filled coolant to spec. Replaced oil and filter due to contamination while repairing.
40Yes500
7
9/22/2017 3:29:37serk20164017stock
I lost heating, it was because of low coolant level (about 3L lost), engine temperature went up to 2/3 of the scale. I send it to the dealer. They checked if it's leaking, filled it up with coolant and let me go. After another fuel tank of light driving I lost another 2L of coolant. There were other symptoms too, rough start when cold, sweet smell from the exhaust, check engine light went on and then off. I don't know if this is related but it happened shortly after the PCM update.
6213they're still deciding whether to replace the engine or just the head.No
8
9/21/2017 23:26:34SyncTheory132016528605/25/2016Stock13000Rough idle when cold, later lots of white smoke from exhaust w/ sweet smell.13000Cracked Cylinder Head.New Cylinder Head.36Maybe3000
9
9/21/2017 22:19:06ZygyKoz2016537906/05/2016Stock7000This all happened last week during a road trip (to RS Adrenaline Academy ironically). Car is a 2016 RS took delivery July 16, 2016 from a February order. ETIS bud date back then showed May 6, 2016.
~ 7,000 miles - experienced very rough idle (literally shaking the car) at a couple startups.
~7,300 miles - check engine lit up after the 3rd rough idle start. Could definitely smell coolant. Drove it less than half mile to our hotel, parked overnight. Checked CELs in the morning: P0300, P0302, and P0303. Coolant reservoir was half empty between the LOW line and bottom. Called FORD roadside. Started it and had to backup to get it on the tow truck, coolant odor was super strong.
7300They topped of the coolant that was missing/low and cleared the CELs. Ran a pressure test, and they noticed it did drop a little. The cylinder 3 misfire CEL came on again for them. They checked out cylinder 3 did have coolant in it.I have a case with Ford that the dealer is working with. Ford asked them to tear down and check where the failure is occurring. Once identified they work with Ford on next steps. They will know more by end of week hopefully.30Yes200
10
9/21/2017 21:23:022016571206/14/2016
COBB air filter, Mountune intake, Denso -1 cold plugs, Tune+
15128misfire15247detonationreplace motorNo
11
9/21/2017 22:28:512016562607/04/2016Exhaust, BOV14850missing on cold startup, lowering coolant level14890Leaking coolant into #2 cylinder WaitingMaybe
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9/21/2017 22:32:0820164xxx05/11/2016stock30000tailpipe white smoke30000coolant in oil will call24No
13
9/21/2017 23:10:162016550007/02/0016stock8000white smoke from exhaust/coolant loss/check engine light/rough idle8400blown head gasket engine replaced14No1000
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9/22/2017 3:52:43Inline6turbo20164978
ETS FMIC
ETS Charge Pipes
Colder Plugs
COBB RMM
Turbo smart BOV
WGA
Catch Can
Crankcase Breather
Intake
ETS extreme exhaust
94oct Tune+
Rough idle on cold start one morning. Really rough idle, sounded like a tractor on three cylinders, the next morning. Popped a CEL. Read code. Cylinder 2 misfire. Swore a lot. Drove to dealer where it currently sits (July 11, one year to the day since delivery) Checked coolant reservoir, very very low.
23612Awaiting diagnosis. Will updateMaybe
15
9/22/2017 7:09:53BrettRS201641794/1/2016stock21000rough idle on cold start, very low coolant levels21000blown head gasketreplace head gasketNo
16
9/22/2017 9:00:14Inline6turbo20164978
Tune+ W400 kit plus ETS extreme exhaust
38000
White smoke. Rough idle. Very low coolant. Check engine light. Cylinder 2 misfire
23600Cylinder head crack. Cylinder walls scored. Replacement engine 42Yes1000
17
9/22/2017 15:26:17412focusrs201653XX6/13/2016stock9000smoking on startup, using coolant9000new cylinder headnew cylinder head20No9000
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9/22/2017 15:34:09Sleeper20164774LULZ-ALL the mods11600
6/25/17. Started up the car in the morning, had misfires and white smoke (coolant) blowing out of the tail pipe. Coolant reservoir was also low. Car was dropped off at the dealer 6/27/17.
Mileage when issue confirmed: 11,6xx
11600
Pressure test confirmed cracked block. Tech tore down the entire engine. Found multiple valves leaking and head was warped. Scoring on the cylinder walls was also found.
Got a call 7/3 that Ford is replacing the entire engine under warranty. Also that the engines wont be released until 7/17. Engine showed up 7/11...
20Maybe
19
9/22/2017 15:39:49Krote620164370stock
coolant level dropping, misfires on cold start up, excessive steam from exhaust on cold start up
21000To resolveMaybe
20
9/22/2017 15:42:22Oroxil20164656Stock
I started noticing a rough idle at cold startup. Then it would level out. Never noticed any white smoke. My waylens camera started showing code P0303, it actually had additional information and I didn't pay it any attention at first because I assumed it was a camera fault code. The engine light didn't come on until week 3. Looked under the hood to see that the coolant was extremely low. Just got word from the dealer that it is indeed misfiring, but not just on cylinder 3, but also cylinder 2 and that coolant is leaking into the cyclinders.
23394
They confirmed the misfire and coolant leak. They are moving it to the next level tech to figure out what's next
P0303, P0316 Coolant in cylinder, head was warped, 2 tappets damaged. Replaced head, head gasket, 2 tappets, front cover gasket, front crank seal, valve cover gasket, exhaust gasket, coolant bypass gasket and intake gaskets. Filled coolant to spec. Replaced oil and filter due to contamination while repairing.

So, no new engine.
20Maybe
21
9/24/2017 2:12:03201644684/19/2016
M380 kit, IC, charge pipe fitted at MTHQ and miltek turbo back exhaust
14000Misfire on start amd coolant level drop, white smoke from exhausts 14050Head gasket erosion causing scoring in cylinder 3Engine change30Yes450
22
9/24/2017 3:34:262017Xxxx2/5/2017Stock10000Losing coolant and misfire on starting10500Head gasket failureOffered new Engine, I'm rejecting the car500No0
23
9/24/2017 5:51:22-201775803/21/2017Stock5500Misfire and excessive smoke during start once left for more than 3 hours6000Car has no issueNew engine15Yes4500
24
9/25/2017 17:34:02201644824/16/2017Tuned15000Misfire-cyl.-3 CEL
White smoke upon startup
15000Blown head gasketReplace cylinder head as well as head gasket 40Yes13000
25
9/25/2017 17:41:35SMIK90201664807/20/2016Stock5070
Engine blew up, Coolant was well below minimum mark on tank after inspection. No CEL or misfires prior to engine failure.
5070Engine ReplacementStill under arbitration with dealership regarding warranty coverage.No
26
9/28/2017 9:20:24201642454/19/2016Stock7900CEL on and rough idling7929Coolant in cyl #3 and warped block (0.009" OOS) by Cyl 3 of block.Long Block ordered and installed under warranty40Yes600
27
10/3/2017 16:14:24
Disheartened RS owner
20166035None12000Check engine light12068Head gasket needs replacingPart replacement scheduked45Maybe0
28
10/4/2017 13:51:5720164905mods6000bent rodmods caused itfuck off, then i confirmed coolant in cylinderMaybe
29
10/8/2017 12:38:58201732002/2/2017
Mountune air intake and charge pipe mountune quick shift and recirculation valve. A turbo smart waste-gate actuator and scorpion cat-less downpipe. And a tune from mountune USA
5000Rough start up and noticed coolant was lowNo
30
10/11/2017 2:47:27201651859/27/2017
Mapped, IC, Miltec Exhaust, Induction
8000loss of coolant, Dense white smoke on cold startup8000WaitingWaitingNo
31
10/21/2017 22:57:08201774685/16/2017Stage 24345Misfire, loss of coolant, smokeyIn progress No
32
11/4/2017 9:42:28thirdgen89gta201649935/11/2016Stock20297
White coolant smoke, rough idle on cold starts occasionally. Consumed roughly 1 gallon coolant per month.
23105
Initial visit, no fault found. @23105mi Engine hydro locked on cylinders 1/2, towed to dealership. Head and block found to be warped.
Warrantied. Engine replacement ordered. Pending delivery.0Yes
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11/5/2017 16:16:52Finetime29942017~950011/8/2016Stock10750
Rough idle, white smoke out exhaust (sweet smell), threw check engine code on third time it did this.
10750
Head and block were not level (showed warpage, possibly from factory not heat)
Replaced entire engine32Yes550
34
11/6/2017 3:40:3420172790STOCK49900WHITE SMOKE AND ROUGH IDLE AT THE START, LOW COOLANT LEVELWAITINGNo
35
11/16/2017 6:06:1720167984Stock13080Cold start misfire13700HeadgasketStill waiting but thing its just getting a gasket???No
36
11/26/2017 7:38:27Boileranimal20166614Hennessey tune5000Smoke, radiator fill tank empty5000
Ford dealer sent me home said they ran ck was ok. Came back after it burned another tank full of anti freeze
Leak head30Maybe2000
37
11/30/2017 14:04:02Haze201653535/31/2016Stock5000I started noticing coolant loss around 5000 miles.7600Dealer agreed that coolant was low.
Dealer performed leak test and found no issues. They topped off my fluid and said to continue to monitor it.
1No
38
12/1/2017 12:32:48LasVegasRS20172027
mountune ECU tune, intercooler, induction system, v2 catback, quick-shift, engine mount roll restrictor, Stainless Works Downpipe
6500
Issue began when car had COBB tune, P0171 O2 sensor code thrown – dealership blamed the tune they did not inspect.
14081
Dealership could not resolve, went through hell with Gaudin Ford in Las Vegas, finally went to Team Ford in Las Vegas on 11/10/17 and they determined coolant was leaking into head gasket.

CHRONOLOGY
07/16/17: Issue began when car had COBB tune, P0171 O2 sensor code thrown – Dealership blamed the tune

06/25/2017 – 08/04/2017: Purchased and installed Authorized Ford mountune Parts + downpipe

09/17/2017: RS stalls at Chevron gas station and runs rougher, P0171 and a PC164 O2 sensor codes thrown.

09/18/2017: Brought RS to Ford Dealership for multi-point inspection. Car P2195 O2 sensor code thrown, charged for unnecessary ECU reprogramming back to stock (I had already reprogrammed RS to stock), no solution found.

09/19/2017: At the recommendation of a service rep I purchase BG 44K Fuel System Cleaner to see if that resolved the issue, desperate for a solution I begin calling other auto shops. Ford Dealership cannot troubleshoot issue and wants to return car back to all stock parts.

09/22/2017: Mountune provides (yeah, I'm literally asking them for help) a potential path by replacing downstream O2 sensor; since the sensor is on the downpipe we swap out downpipe.

11/06/2017: P0302, P0316, P0420 codes thrown, white smoke emanates from the exhaust on cold start. Finally, locate Ford Dealership which sells Ford Performance parts and will work on the car. They troubleshoot the issue and determine coolant is leaking into the head gaskets. The car has been in the shop since and the long block is now being replaced 12/1/2017.
New long block was shipped yesterday 11/30/201722Maybe0
39
12/17/2017 7:00:192017657
ETS Exhaust, DP, FMIC, but reverted back to stock for roughly 4k miles for drive across USA.
13000Rough idle on startup, sweet smell17200Head gasket missing between cyl 2 and 3Replace head and head gasket25Maybe200
40
12/26/2017 11:58:40flyevo201721672/3/2017
Mountune'd
Mountune PTU Brace, bypass valve, shortshifter
ETS Intake
ETS DP
ETS Catback Extreme
Mishmoto Catch Can

8400
White smoke out back on start, rough idle in cabin, low coolant (below MIN line).
Maybe
41
12/29/2017 16:33:43Cyclejohn201661213/6/2016
Tune + tune, plugs, air cleaner, wastegate.
5500Misfire with engine light, burning smell.5800Found leak after a overnight test.New long block.14Yes200
42
3/25/2018 7:56:4920186741Maybe
43
4/27/2018 13:35:05RSBaron2016518
Mishimoto Induction Kit, Aftermarket Exhaust
9400Cylinder 3 misfire, engine blown. 9400Broken LongBlock. No further detail.Replace Engine25No
44
Thelastosirus20168699
45
Dika201605/25/201611806
46
412Focusrs2016
Green airfilter, ETS Titanium cat-back exhaust, Mountune RMM
Started the car one morning and it misfired a few times from a cylinder. From that point on a kept an eye on the coolant level which dropped consistently from that point forward. The misfiring starts would happen more frequently from that point on.
9500Currently at the dealer as of 4/7/17. Awaiting their diagnosis.
47
y)9CnpEtUvmi2016
stage1, tune only. Will uninstall the tune next week to test it on stock.
17000
Misfire in Cylinder 2. Started after sometime after stage1 tune, didn't have it without a tune before. Found the discussion on focusst.org about random misfiring in cylinder 2 or 4 on both stock and tuned cars, 100+ pages. Dealership didn't tell me anything, just cleared the code. ST owners are pretty aware of it and there is no fix for them yet. Stopped to worry about it. Then I had a white smoke during the cold start for 1 minute coming out of the pipe yesterday (or maybe more times, but I didn't notice it before). Right after that I noticed a noticeable drop in coolant. I'm closely monitoring everything right now. Very similar to what @412focusrs has.
22000the car will be dropped for a check next week
48
Alex13mod2016531901/06/2016Stock150002 days ago bogging at cold idle with white smoke. (sweet smell)15100sent to dealer today
49
Shimmer2016StockCracked cyl head, verified by Ford. White smoke and sounded like a subie 3cyl 26078
Store my **** for one month, then disassemble 2.3EB and let sit in dirty ass environment exposed to debris, until ford can allocate repair parts
50
FiSTer2016460504/01/2016Stock
Head/head gasket failure, verified by Ford. White smoke and sounded like it was running on 3 cylinders.
11450Dealer is replacing the whole engine.Dealer is replacing the whole engine.
51
Pli201604/01/2016Stock
Uneven idle and white smoke at start-up, smell of coolant, eventually loss of cabin heat due to coolant loss. After refilling coolant took the car for a drive and the starter failed to engage forcing me to tow the car to Ford shop. Not sure of connection to the original problem. Only thing I can see is if coolant has entered starter and caused a short?
807
Authorized Ford shop found head gasket between cylinders looking slightly irregular and traced coolant gas in at least 2 cylinders. This with engine still in car. Ford stated that there were no head gaskets in stock and that they would therefore replace engine!
52
z0iid20163647Stock
Rough idle, loss of power, smell of burnt oil under load, 1/2 quart down 3 weeks after oil change, white smoke 2 weeks after first noticed symptoms
16500
Reported that piston #2 "fell apart", no compression, thus engine will have to be replaced. Could be 2 to 8 weeks before they receive an engine. No mention of head gasket, so may not be related.
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