mustangpegasus51
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- Joined
- Jun 16, 2020
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- Location
- Lakewood, CA
- First Name
- Ed
- Vehicle(s)
- 2020 Mustang GT PP1
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Hey All!
UPDATE:
For all those interested, am putting my updates here. As of August 2020, car seems to drive and (maybe) just sound a bit better. Posting a truncated timeline below for those interested:
Vehicle: 2019 PP1 10r80 with active exhaust (stock) - around 3500mi when issue first appeared.
16 June 2020: During stop-and-go traffic I did a quick accel, stop and then accelerated again. On that subsequent acceleration I felt a bit of hesitation. It also seemed like the exhaust note was off, although obviously a bit hard to pinpoint. However, I noticed from a cold start that there was a notable ticking/flapping noise from the passenger's side muffler, that would go away in the first 10-15 seconds of warming up.
18 June 2020: Brought in car to Dealership #1 (close to home but NOT where I purchased vehicle) to get 10r80 transmission flashed with latest strategies, seeing if this would fix the hesitation.
I also asked about the flapping noise. They said the issue might be resonating from the engine, and that I'd need to be there to show them on cold start exactly what I was talking about. I took my car back to test if it was performing better first and then told them I would come back to replicate if I needed to.
The reflash did make the car shift better from D to R etc. but hesitation was still present.
25 June 2020: Brought car to Dealership #1 to get oil changed and to check out:
Not really knowing where to go from there, I took the car back to see if maybe the oil changed improved performance.
26 June 2020: On a night drive the car threw a flashing CEL going WOT in quiet mode. Code was P0300. Loud hissing, rattling and popping when parking the car after this drive, where I drove it hard to test performance.
29 June 2020: Brought back to Dealership #1 to look at issue. Service advisor dismissed CEL as it has already turned off. After pushing the issue they agreed to look at the car again, but to list all my diagnostic needs in one appointment.
1 - 21 July 2020: Brought back to Dealership #1 to replace engine air filter and address:
21 Jul 2020: Escalated with Ford Customer Service. Regional CSR was very sweet. Said to go to Dealership #2, where I originally purchased the vehicle and go from there.
27 July - 5 August 2020: Took to Dealership #2 to address:
5 August - Present: Car seems to be driving better, although my experience as of yet is too subjective to say if it's back to what it was before all this. Even the thumping/ticking seems to have subsided in the past few miles. However, there doesn't seem to be any notable hesitations, and the exhaust does sound a bit better, or at least most of the time. The exhaust sounding off could very well have been a misfire. Some stray observations:
_______________________________________________________________________________________________
So my 2019 PP1 makes the noise in the below video on cold start, but only out of one exhaust pipe (well, two out of four on one side only.)
EDIT: updated video, slightly better but will work on getting higher quality one soon. https://imgur.com/dakdmeX
EDIT II: Longer video:
EDIT III: Short video, but noise is pretty obvious. (Headphones recommended if you can't hear it with speakers):
This came along with--
Has anyone ever had this noise and figured out what it was? Thanks in advance for any help!
UPDATE:
For all those interested, am putting my updates here. As of August 2020, car seems to drive and (maybe) just sound a bit better. Posting a truncated timeline below for those interested:
Vehicle: 2019 PP1 10r80 with active exhaust (stock) - around 3500mi when issue first appeared.
16 June 2020: During stop-and-go traffic I did a quick accel, stop and then accelerated again. On that subsequent acceleration I felt a bit of hesitation. It also seemed like the exhaust note was off, although obviously a bit hard to pinpoint. However, I noticed from a cold start that there was a notable ticking/flapping noise from the passenger's side muffler, that would go away in the first 10-15 seconds of warming up.
18 June 2020: Brought in car to Dealership #1 (close to home but NOT where I purchased vehicle) to get 10r80 transmission flashed with latest strategies, seeing if this would fix the hesitation.
I also asked about the flapping noise. They said the issue might be resonating from the engine, and that I'd need to be there to show them on cold start exactly what I was talking about. I took my car back to test if it was performing better first and then told them I would come back to replicate if I needed to.
The reflash did make the car shift better from D to R etc. but hesitation was still present.
25 June 2020: Brought car to Dealership #1 to get oil changed and to check out:
- Hesitation - note was ignored
- Burning smell from engine bay - deemed normal operating condition/cat related
- Ticking from exhaust - claimed it was related to this tsb: http://latemodel.cachefly.net/downloads/instructions/19-2144.pdf
Not really knowing where to go from there, I took the car back to see if maybe the oil changed improved performance.
26 June 2020: On a night drive the car threw a flashing CEL going WOT in quiet mode. Code was P0300. Loud hissing, rattling and popping when parking the car after this drive, where I drove it hard to test performance.
29 June 2020: Brought back to Dealership #1 to look at issue. Service advisor dismissed CEL as it has already turned off. After pushing the issue they agreed to look at the car again, but to list all my diagnostic needs in one appointment.
1 - 21 July 2020: Brought back to Dealership #1 to replace engine air filter and address:
- CEL P0300 - said they tested but didn't count any misfires and couldn't trigger CEL
- TSB 19-2140 (Chirping noise, https://static.nhtsa.gov/odi/tsbs/2019/MC-10160869-0001.pdf - this work was performed
- Throttle hesitation, possible link to TSB 18B34 - note was ignored
- Ticking from exhaust - said I needed to come in but never called me to let me know when, or that I needed to do so, even during updates or when I asked about it over the phone
- Thumping noise from engine bay - attributed to typewriter tick: https://www.mustang6g.com/forums/threads/per-ford-officially-the-2011-2019-f150-mustang-5-0-“typewriter-tick”-is-a-normal-characteristic.116925/
21 Jul 2020: Escalated with Ford Customer Service. Regional CSR was very sweet. Said to go to Dealership #2, where I originally purchased the vehicle and go from there.
27 July - 5 August 2020: Took to Dealership #2 to address:
- CEL P0300 - They went into historical DTCs and found a P0303 instead of or in addition to P0300. They said plug on #3 was gapped poorly, and road tested without setting off any misfire PIDs.
- Throttle hesitation - Resolved by resolving misfires
- Poor fuel economy (11mpg or less city) - Normal engine operation
- Ticking from exhaust - sound was replicated, but was compared to other models and seems to be a characteristic of 2018+'s with active exhaust (from my own search on Youtube before this diagnosis, I began to believe the same.) They even checked for leaks etc. just in case but came up empty.
- Burning smell/heat from left front wheel well - Only burning smell they were able to replicate was exhaust related, which they said was characteristic. Remember them saying something about components "breaking in" as well.
5 August - Present: Car seems to be driving better, although my experience as of yet is too subjective to say if it's back to what it was before all this. Even the thumping/ticking seems to have subsided in the past few miles. However, there doesn't seem to be any notable hesitations, and the exhaust does sound a bit better, or at least most of the time. The exhaust sounding off could very well have been a misfire. Some stray observations:
- From a cold start, I can get a moderate to harsh shift from 1-2 or 2-3 etc. (Don't know exactly as the 10r80 doesn't tell you w/o a digital dash.)
- Also idles at 1000 - 1100 RPM on cold start. However I bet it was always like this as a way warm up.
- Keeping an eye on misfires with code 6 data: So far, in the past driving cycle I has a singular misfire from cylinder 3 and 6. EWAP/averaged misfire count comes out 0 for all cylinders. I figure this is not cause for concern unless these values increase significantly or trigger a CEL?
- Also found on mode 6: There was one failed test: Inferred Catalyst Mid-Bed Temperature was ~715*C when it should be around 550*C. However this value appeared before starting the car. After driving around and parking again, that same test value was ~410*C, below the threshold. From what I gathered online already, this is only an estimate and shouldn't be considered unless another code or fault pops up?
- While working with Ford CSRs through all this I was told that regardless of whether my car had qualified for CSP 18B34 (my assembly date matches this window) http://latemodel.cachefly.net/downloads/instructions/18B34.pdf that the program expired so it's a no-go. I got pretty upset at this point with Ford but know that the CSRs, etc. can only follow their company policy. Still, this should be a full-blown recall -- how is going into "limp mode" not enough of a potential issue to warrant one?
_______________________________________________________________________________________________
So my 2019 PP1 makes the noise in the below video on cold start, but only out of one exhaust pipe (well, two out of four on one side only.)
EDIT: updated video, slightly better but will work on getting higher quality one soon. https://imgur.com/dakdmeX
EDIT II: Longer video:
EDIT III: Short video, but noise is pretty obvious. (Headphones recommended if you can't hear it with speakers):
This came along with--
- Delayed throttle response on WOT when coming from low or steady speed. (Seems slightly better after transmission computer was flashed by dealer.)
- Quieter and "raspier" exhaust? (Seems back to normal volume after new tank of gas, quality of sound up for debate.)
- Burning smell from driver's side of engine bay.
- Excessive heat from front driver's side wheel well area.
Has anyone ever had this noise and figured out what it was? Thanks in advance for any help!
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