Threads Tagged with misfire

PO306/02 Code, Shuddering during heavy acceleration, lose power

Derezed on Oct 22, 2024

Mar 20, 2026 07:07 PM
by Samuelglover57

6

1,014

Ticking Noise and Misfire: Opened valve cover, what to do next?

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1 2)

overdrivemachines on Jul 18, 2024

Dec 15, 2025 12:52 PM
by overdrivemachines

13

3,780

5.4 running hot and rough

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1 2)

2thousand5.4 on Aug 23, 2013

Oct 16, 2025 12:59 PM
by Nicholas Harris 1234

18

14,297

5.4L

misfire, random misfire, system too rich

2018 F-150 5.0 Coyote – Persistent Misfire (Cyl 2,4,6,8) and Rich Condition

PJCoyothe50 on Oct 5, 2025

Oct 16, 2025 03:33 AM
by 99F150V6

9

3,587

2016 5.0 stutter at 1500-2000 rpm

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1 2)

stupid on Oct 9, 2023

Aug 17, 2025 04:15 AM
by Guusgeluk60

14

10,179

302 EFI distributors failing

nickbroox on Jun 18, 2025

Jun 18, 2025 05:12 PM
by nickbroox

2

400

Drivetrain

coil pack, misfire, misfiring, miss fire, plugs & coils

2020 F-150 3.5L EcoBoost Miss Fire

RA82225 on Apr 23, 2025

Apr 23, 2025 03:35 PM
by RA82225

4

4,590

2021+ Ford F150

5.4, f-150, misfire, rough idle, shutter

Solved: Misfire Problem

Walkerrun on Dec 20, 2014

Mar 11, 2025 06:58 AM
by techrep

7

148,852

misfire, p0012, phaser, rough idle, timing

P0012 - Rough Idle - Other Weirdness

Manny Turinetti on Oct 11, 2024

Oct 12, 2024 10:38 AM
by needsmoarturbo

2

1,670

misfire, multiple misfire, rough acceleration, rough idle, stalling

2018 5.0 misfire

drriggs on Nov 30, 2023

Aug 27, 2024 01:15 PM
by rdearcos

3

18,563

2016 F-150 XLT EcoBoost

Crazedshifter on Jul 28, 2024

Jul 28, 2024 11:21 AM
by BadAV

1

675

2017 F150 Misfire Problem

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1 2)

rallyon on Aug 28, 2021

Jul 6, 2024 10:28 PM
by Andrew1209

11

32,839

2004 4WD - Misfire at low RPM light acceleration

Jeff Nichols on Mar 31, 2024

Apr 27, 2024 08:43 AM
by Jeff Nichols

6

563

5.4 2v, lean bank 1, misfire, o2 sensor, p0303 cylinder 3 misfire

2002 5.4 v8 triton cylinder 3 misfire/ o2 heater circuit

OBrendan on Mar 11, 2024

Mar 12, 2024 05:20 AM
by raski

1

1,845

5.4L

P0451;P0305 Misfire under load

ben_auger on Jan 2, 2024

Jan 2, 2024 07:15 AM
by ben_auger

0

888

Misfire or timing issue?

Alloy on Nov 21, 2023

Dec 1, 2023 08:59 PM
by needsmoarturbo

6

1,645

ecoboost, misfire, shudder, spark plugs, transmission

Misfire/Shudder Fix

Shane.I on Nov 29, 2023

Nov 29, 2023 05:48 PM
by 2008__XL

7

1,812

MIL Light not coming back.

Mark_011 on Sep 30, 2023

Oct 4, 2023 10:44 AM
by Mark_011

3

643

07' F150 misfire help

john_william on Aug 18, 2023

Aug 21, 2023 07:51 PM
by flyswat446

5

4,382

Misfire after spark and coil maintenance

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1 2)

truckinmuckin on Jun 25, 2023

Jul 9, 2023 01:58 PM
by TrevorAustin

19

3,181

coolant, coolant leak, misfire, oil leak, p0307

Coolant Leak and Oil Leak - Whits End

ramblinman on Sep 19, 2021

Jun 23, 2023 08:19 PM
by mathew947

8

10,069

5.0, misfire, rough idle, spark knock, spark plug

Gen 3 Coyote Running Rough after Spark Plug Change

tjholmes on Jun 20, 2023

Jun 20, 2023 01:18 PM
by laterongc

5

4,394

2001 f150 xlt, 4.2 liter, 6 cyl, misfire, p0401

2001 V6 4.2L P0401 with odd misfiring

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1 2)

Cody456 on Mar 15, 2023

Mar 18, 2023 02:53 AM
by jdybvik

10

9,324

Cold misfire 5.4L

nc1olor on Mar 11, 2023

Mar 11, 2023 04:01 PM
by NYFordTruckMan

1

513

Misfire under load... COP or Plug? Gryphon tuner?

SallyTwoDiqs on Jan 31, 2011

Oct 17, 2022 01:25 PM
by Turbonut

5

13,439

Misfiring on cylinders 3,4,7,8

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1 2 3 ... Last Page)

nzwicker on Mar 22, 2018

Oct 17, 2022 10:51 AM
by PokerPro.us.com

46

71,848

2015 Eco boost misfiring?

Alex_Dee on Sep 14, 2022

Sep 27, 2022 08:02 AM
by Alex_Dee

4

1,365

New motor install now won’t run need help

TMentz on Jul 31, 2022

Jul 31, 2022 10:17 AM
by TMentz

0

446

Hesitation at around 45 to 50 MPH when you go to accelerate

bbroe on Aug 10, 2009

Jul 25, 2022 01:50 AM
by antwerks

7

100,570

ambient temperature, coil, engine skip, misfire

Engine mis-firing or skipping when cold?

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1 2)

stankyjeans on Feb 27, 2022

Jul 6, 2022 06:17 PM
by stankyjeans

13

2,053

Help with 5.4 3v misfire on 5???

hammer ninja on Jul 15, 2021

Mar 17, 2022 11:07 AM
by thebestengines

7

9,676

3.5 ecoboost, ecoboost, misfire, weephole

2015 ECO 3.5 Misfire-Tried everything, I think.

HM6157 on Nov 20, 2021

Nov 22, 2021 01:33 PM
by Trexx

7

32,627

1998 f150 4.6 xlt, cat convertor, misfire, o2sensor, rough idle

Buying a 1998 F150 4.6l couple engine codes.

Ardite92 on Jul 4, 2021

Jul 5, 2021 02:07 PM
by BareBonesXL

4

1,054

04-08 f150, 5.4 3 valve, lack of power, misfire, running rough

HELP with Diagnosing ROUGH Running Truck that's Been Sitting

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1 2 3 ... Last Page)

zLegacies on Oct 23, 2020

Apr 23, 2021 10:41 AM
by Ricot83

51

16,076

4.6L won't shift and Lean bank 1

mack177daddy on Apr 19, 2021

Apr 19, 2021 05:12 PM
by mack177daddy

0

551

2003 4.6 V8 - Code P0300 Random Misfire

Wedge123 on Apr 7, 2021

Apr 18, 2021 09:35 AM
by raysorenson

7

4,245

carbon buildup, cylinder, misfire, piston

Normal Piston Wear?

kfly on Apr 5, 2021

Apr 6, 2021 10:06 AM
by kfly

4

1,216

P0300 and misfires

baylorfan05 on Nov 2, 2020

Jan 9, 2021 08:13 PM
by FerdinandF150

4

28,740

Hesitate occasional miss on accelerate

prheath on Nov 12, 2020

Nov 12, 2020 09:21 AM
by prheath

0

637

4.6, f150, fuel system, misfire, open loop fault

99 F150 Fuel System 1: Open Loop Fault

Max78 on Aug 15, 2016

Jul 22, 2020 08:59 PM
by Max78

6

25,979

5.4 3 valve, code p0300, diesel sound, misfire

06 F150 5.4 3v has me perplexed!

Natasdiesel on Jul 14, 2020

Jul 16, 2020 05:43 AM
by techrep

8

2,078

5.4l, engine codes, misfire, rebuilt motor

Rebuilt Motor but have Misfire Codes

jdgrandt on Jul 2, 2020

Jul 2, 2020 08:17 PM
by raformula

1

696

Introductions

camshaft, misfire, po307, rockers, valve issues

09 F250 5.4 3v HELP misfires!

Mthompson2913 on Jun 26, 2020

Jun 27, 2020 12:07 PM
by DarrinT04

2

675

2008 F150 Cylinder Misfire??

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1 2)

Buckman89 on Jun 13, 2020

Jun 23, 2020 01:54 AM
by keiths5n10

10

19,138

consumption, knocking noise, limp mode, misfire, timing chain issues

Every issue post in 1 truck. YAY!

LastNameRiding on Jun 5, 2020

Jun 6, 2020 12:22 PM
by RLXXI

1

914

2013 FX4 misfire ONLY at idle WITHOUT running rough

jaymholland on May 21, 2020

May 27, 2020 06:54 PM
by jaymholland

6

5,855

ecoboost, misfire, p0019, sludge, timing

P0019 and sludge

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1 2 3)

bilskie87 on May 1, 2020

May 12, 2020 12:16 PM
by bilskie87

22

20,074

Misfire and fuel smell

Naga on Jan 12, 2020

Feb 2, 2020 06:16 PM
by Naga

7

11,719

04 f150 4.6 heritage misfire and more

ooseven on Jan 5, 2020

Jan 5, 2020 01:24 PM
by ooseven

0

832