rbooher7526

I have that famous shudder around 40-50. I know it could be COP and plugs or maybe the transmission needs flushed. I ran Torque Pro and attached is the ifo. The misfire data was a fail. I'm hoping one of the more experienced members and give me a clue as to what I'm looking at. Thanks in advance for any help you can give.

Mode $06 report generated by Torque for Android
================================================

Vehicle VIN: 1FTPW14VX7FB38063
Vehicle Manufacturer: Ford
Vehicle Calibration ID: RXDG4B2.HEX

Test report:
------------------
MID:$01 TID:$01
Rich to Lean sensor threshold voltage(constant) - O2 Bank 1 Sensor 1
Max: 7.99527V Min: 0V
Test result value: 0.44994V
PASS
----
MID:$01 TID:$80
- O2 Bank 1 Sensor 1
Max: 7.99527V Min: 0.45994V
Test result value: 0.73859V
PASS
----
MID:$01 TID:$81
- O2 Bank 1 Sensor 1
Max: 3A Min: 0.23A
Test result value: 0.508A
PASS
----
MID:$02 TID:$01
Rich to Lean sensor threshold voltage(constant) - O2 Bank 1 Sensor 2
Max: 7.99527V Min: 0V
Test result value: 0.44994V
PASS
----
MID:$02 TID:$81
- O2 Bank 1 Sensor 2
Max: 3A Min: 0.23A
Test result value: 0.46A
PASS
----
MID:$05 TID:$01
Rich to Lean sensor threshold voltage(constant) - O2 Bank 2 Sensor 1
Max: 7.99527V Min: 0V
Test result value: 0.44994V
PASS
----
MID:$05 TID:$80
- O2 Bank 2 Sensor 1
Max: 7.99527V Min: 0.45994V
Test result value: 0.73639V
PASS
----
MID:$05 TID:$81
- O2 Bank 2 Sensor 1
Max: 3A Min: 0.23A
Test result value: 0.516A
PASS
----
MID:$06 TID:$01
Rich to Lean sensor threshold voltage(constant) - O2 Bank 2 Sensor 2
Max: 7.99527V Min: 0V
Test result value: 0.44994V
PASS
----
MID:$06 TID:$81
- O2 Bank 2 Sensor 2
Max: 3A Min: 0.23A
Test result value: 0.492A
PASS
----
MID:$21 TID:$80
- Catalyst Monitor Bank 1
Max: 0.46874Ratio Min: 0Ratio
Test result value: 0.08984Ratio
PASS
----
MID:$22 TID:$80
- Catalyst Monitor Bank 2
Max: 0.48827Ratio Min: 0Ratio
Test result value: 0.05469Ratio
PASS
----
MID:$3a TID:$80
- EVAP Monitor (cap off)
Test incomplete or dependant test failed
--
MID:$3a TID:$81
- EVAP Monitor (cap off)
Test incomplete or dependant test failed
--
MID:$3a TID:$82
- EVAP Monitor (cap off)
Test incomplete or dependant test failed
--
MID:$3b TID:$80
- EVAP Monitor (0.090")
Test incomplete or dependant test failed
--
MID:$a1 TID:$80
- Misfire Monitor General Data
Max: 24.49688% Min: 0%
Test result value: 0%
PASS
----
MID:$a1 TID:$81
- Misfire Monitor General Data
Max: 0.99953% Min: 0%
Test result value: 0%
PASS
----
MID:$a1 TID:$82
- Misfire Monitor General Data
Max: 24.49688% Min: 0%
Test result value: 28.49957%
FAIL
----
MID:$a1 TID:$83
- Misfire Monitor General Data
Max: 0.99953% Min: 0%
Test result value: 12.51473%
FAIL
----
MID:$a1 TID:$84
- Misfire Monitor General Data
Max: 966.60004°C Min: 0°C
Test result value: 632.20001°C
PASS
----
MID:$a2 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 1 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a2 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 1 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a2 TID:$80
- Misfire Cylinder 1 Data
Max: 24.49688% Min: 0%
Test result value: 0%
PASS
----
MID:$a2 TID:$81
- Misfire Cylinder 1 Data
Max: 0.99953% Min: 0%
Test result value: 0%
PASS
----
MID:$a3 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 2 Data
Max: 65,535Count Min: 0Count
Test result value: 5Count
PASS
----
MID:$a3 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 2 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a3 TID:$80
- Misfire Cylinder 2 Data
Max: 10.91853% Min: 0%
Test result value: 0%
PASS
----
MID:$a3 TID:$81
- Misfire Cylinder 2 Data
Max: 0.99953% Min: 0%
Test result value: 0%
PASS
----
MID:$a4 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 3 Data
Max: 65,535Count Min: 0Count
Test result value: 20Count
PASS
----
MID:$a4 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 3 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a4 TID:$80
- Misfire Cylinder 3 Data
Max: 10.91853% Min: 0%
Test result value: 0%
PASS
----
MID:$a4 TID:$81
- Misfire Cylinder 3 Data
Max: 0.99953% Min: 0%
Test result value: 0%
PASS
----
MID:$a5 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 4 Data
Max: 65,535Count Min: 0Count
Test result value: 42Count
PASS
----
MID:$a5 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 4 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a5 TID:$80
- Misfire Cylinder 4 Data
Max: 10.91853% Min: 0%
Test result value: 0%
PASS
----
MID:$a5 TID:$81
- Misfire Cylinder 4 Data
Max: 0.99953% Min: 0%
Test result value: 0%
PASS
----
MID:$a6 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 5 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a6 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 5 Data
Max: 65,535Count Min: 0Count
Test result value: 1Count
PASS
----
MID:$a6 TID:$80
- Misfire Cylinder 5 Data
Max: 10.91853% Min: 0%
Test result value: 0%
PASS
----
MID:$a6 TID:$81
- Misfire Cylinder 5 Data
Max: 0.99953% Min: 0%
Test result value: 0%
PASS
----
MID:$a7 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 6 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a7 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 6 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a7 TID:$80
- Misfire Cylinder 6 Data
Max: 10.91853% Min: 0%
Test result value: 0%
PASS
----
MID:$a7 TID:$81
- Misfire Cylinder 6 Data
Max: 0.99953% Min: 0%
Test result value: 0%
PASS
----
MID:$a8 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 7 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a8 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 7 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a8 TID:$80
- Misfire Cylinder 7 Data
Max: 10.91853% Min: 0%
Test result value: 0%
PASS
----
MID:$a8 TID:$81
- Misfire Cylinder 7 Data
Max: 0.99953% Min: 0%
Test result value: 0%
PASS
----
MID:$a9 TID:$0b
EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 8 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a9 TID:$0c
Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 8 Data
Max: 65,535Count Min: 0Count
Test result value: 0Count
PASS
----
MID:$a9 TID:$80
- Misfire Cylinder 8 Data
Max: 10.91853% Min: 0%
Test result value: 0%
PASS
----
MID:$a9 TID:$81
- Misfire Cylinder 8 Data
Max: 0.99953% Min: 0%
Test result value: 0%
PASS
----

woopud

I have the same shuder what feels like the transmission jerking, afte some reading on the F150 forums it's most likely misfires. If I take it to AutoiZone and they'll hook up the OBD ll reader, will it show misfires?

F150Torqued

NO, not unless you have an MIL. The cheap code readers they use will only show DTCs, and your misfire 'rate' is below the trouble code trigger rate if you do not have an MIL.

If you have the shudder around 45 - 50 mph under light load ---- IT IS MISFIRES (99.9% certain). For more information about it, you need a good scanner (like Torque Pro) that will give you Mode 6 reports like that above and Freeze Frame data. But at the end of the day it doesn't much matter - you need to do a 'hospital clean' plug job (no greasy finger prints on plug ceramic), use the new SP546 Motocraft plugs, clean ALL carbon out of plug holes beyond plug threads, replace all boots and springs (even if they look ok), clean electrical connections with electrical contact cleaner, and replace any COP connector clips that will not snap.

F150Torqued

@rbooher7526 , your Torque Pro data shows O2 sensor readings, evap readings, and cat readings are all generally within normal range (at the time the report was ran). Keep in mind, Mode 6 is a 'snapshot' of test readings at the instant the test is requested. ie: if it was 'early' in a drive cycle, CAT temperatures may be low as they have not had time to come up to operating temperature.

Since your symptom is light load misfires (shudder) around 45-50 mph, I will concentrate on those factors.

MID:$a1 TID:$80 -MEANS "Total engine misfire and catalyst damage misfire rate (update every 200 revolutions)
YOUR TEST VALUE. 0% It would have failed if over 24.49688%. But during the last 200 revolutions, there was ZERO percent misfires.

MID:$a1 TID:$80 -MEANS "Total engine misfire and emission threshold misfire rate (updated every 1000 revolutions)
YOUR TEST VALUE. 0% It would have vailed if over 0.99953%. But during the last 1000 revolutions, there was ZERO percent.

MID:$a1 TID:$82 -MEANS "Highest catalyst-damage misfire and catalyst damage threshold misfire rate (updated when DTC set or cleared)
YOUR TEST VALUE. 28.49957%. FAILED because the 'factory upper limit' is 24.49688%. The 'WORST' misfire rate your engine has experienced since DTCs were last cleared was JUST A SLIGHT BIT over the factory preset limit in ANY 1000 revolution window.

MID:$a1 TID:$83 -MEANS "Highest emission-threshold misfire and emission threshold misfire rate (updated when DTC set or cleared).
YOUR TESt VALUE. 12.51473%. FAILED because the 'factory upper limit' is 0.99953%. The 'WORSt' misfire rate your engine experienced since DTCs were last cleared was SIGNIFICANTLY above the maximum tolerable misfire rate to stay within emissions parameters.

MID:$a1 TID:$84 -MEANS 'Inferred (calculated) catalyst mid-bed temperature.
YOUR TEST VALUE. 632.20001°C (1169.960018º f) --- well within the Min / Max, but might be a little early in the drive cycle. Normal operating temperature might between 1300 to 1500º f.

The same type data presented "BY CYLINDER" indicates that during the CURRENT DRIVE CYCLE, ONLY Cylinder 5 registered a misfire. ONLY 1.
During the last 10 drive cycles, Misfires have been accumulated on Cylinders as follows:

Cylinder 3 - 20 misfires
Cylinder 4 - 42 misfires

Keep in mind, the reason Cylinder 5 (who misfired 1 time during the current drive cycle) does not show up in the last 10 drive cycles for TWO REASONS. Counts for the last 10 are moved to the last 10 at the "END" of the current drive cycle. AND - besides, the last 10 count is an "EWMA" (exponentially weighted moving average) - which means the 1 will have much more weight at the very next drive cycle, and not nearly so much after 5,6 or 7 drive cycles if no more occur on that cylinder. (Just keep in mind, the count in the last 10 is a moving average).

ALSO Some more detailed information can be obtained from numerous other 'sensors' and parameters in the Freeze Frame data that Torque Pro will give that is capture at the instant a DTC occurs.

BUT -- having said all that, I would recommend the SAME that was mentioned in my prior post to @woopud . Also I recommend you download the Motorcraft OBDII Theory of operation manual for your vehicle from HERE https://www.motorcraftservice.com/freeresources/obd . Specifically review and study page 11 (from which I got all the above information)

Since you are a Torque Pro user you might get some benefit out of this thread: https://www.ford-trucks.com/forums/1...l#post17549804

rbooher7526

I so appreciate your input and the links. Thank you so much!

woopud

Much appreciated, thank you! Just checked my service log, it's been 65,000 miles since I changed my plugs and COP's.

redfishtd

60k is the new recommended change point . Best to do a real good plug job with new boots . Easy on the dielectric grease . Torque all plugs in 25-28 foot pounds not by feel . New plugs are sp546. Do clean that carbon out of tip area of cyl . Keep hands and parts clean . Clean all cop contacts . Misfires can damage cats and pcm .

redfishtd

Keep your oem cops they rarely fail just get corroded. There's reasons why oem costs 50 each and after market is $60 for 8. One is the high quality steel core required to handle field at a high rate of speed and other factors . Just my opinion due to working on transformers /sensors for years .

BadFish523

This^^^^ So many people overdue it on the dielectric grease. It is non conductive so it can and will interrupt your spark.

dukedkt442

Get out an hammer the sucker until it throws a code, then have it read... at least then it'll show which cylinder is misbehaving. But at the mileage, if one is misbehaving, they rest probably aren't far behind. As others have said, best to do all plugs/coils together to establish an even baseline, and prevent a continuing ongoing problem of misfires. Half of my coils had been replaced by the time I got the truck, which started missing soon thereafter, so I got an entire new set from Autozone, simply because there is a lifetime warranty on them: last set of COPs I'll ever have to buy.