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2009, 900, cylinder, denali, f150, fuse, gmc, gmt, light, misfire, missfire, p0301, service, sierra, silverado, stabilitrak, trip

P0301 Cylinder 1 Misfire and rough idle

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1 2 3)

gnasty1521 on Sep 6, 2011

Oct 17, 2013 10:23 AM
by Mark Johnson

29

164,126

GMT 900 Trucks General Discussion

check, counter, cylinder, cylinders, find, misfire, misfires, misfiring, missfire, pressure, pro, read, shoot, test, torque, trouble

guys using torque pro

RedRobinYum on Apr 18, 2013

Apr 23, 2013 10:27 AM
by Fastcount03

3

2,472

Tuning, Diagnostics, Electronics, and Wiring

08, 2003, 2006, 4, 4th, 53, code, cyl, cylinder, downhill, f150, ford, misfire, missfire, tahoe

Trouble Code=misfire cylinder #4.

First Sergeant on Nov 17, 2011

Mar 25, 2013 04:51 PM
by kretty

7

1,685

Tuning, Diagnostics, Electronics, and Wiring

81, cylinder, f150, fire, ford, headers, idle, lightning, mis, misfire, misfires, missfire, ss, trailblazer, truck

P303 random misfire code #7 cylinder!

juicedsierra on Sep 18, 2010

Dec 13, 2012 11:50 PM
by TexasGMC08

5

2,259

Tuning, Diagnostics, Electronics, and Wiring

11s, 2003, 4l80e, 53, 60, check, engine, installing, intermit, light, missfire, multiple, range, rcsb, rpm, silverado, suv, turbo

2003 RCSB Turbo Silverado 6.0L/5.3L/4L80E

TXjeepTJ on Sep 11, 2012

Sep 26, 2012 06:35 PM
by brodystruck

6

3,908

Trucks and SUV Classifieds

01, 07, bank, belt, boost, cclb, classic, gasket, intake, leak, misfire, missfire, p0172, p0175, procharger, silverado, slip, turbo

Misfire, and possibly other things

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1 2)

02BlueStepside on Jan 23, 2012

Feb 15, 2012 03:59 PM
by 02BlueStepside

11

2,299

Tuning, Diagnostics, Electronics, and Wiring

2007, 2008, 53, cylinder, drops, engine, light, low, misfire, missfire, noise, number, oil, pressure, subarbun, suburban

misfire #6 then loss of oil pressure 2007 5.3 suburban

warrantykiller on Dec 11, 2011

Dec 17, 2011 10:08 AM
by Mang213

8

14,462

GMT 900 Trucks General Discussion

4l60e, converter, decel, detection, higher, hp, hptuners, lockup, misfire, missfire, performancetrucks, stall, truck, tuners, tuning

Converter tuning

whitedakota on Nov 29, 2011

Dec 17, 2011 08:46 AM
by whitedakota

4

2,024

Tuning, Diagnostics, Electronics, and Wiring

02, 05, 53, bad, bank, cylinders, fuel, lq4, misfire, misfires, missfire, onee, pump, silverado, stops

need help diagnosing my terrible misfire!

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1 2 3)

SmokinHot98 on Oct 8, 2011

Oct 31, 2011 12:56 PM
by Third Gear

20

3,707

Tuning, Diagnostics, Electronics, and Wiring

5500rpm, 57, hemi, ls1, missfire, rpm, wot

Engine holds at 5,500 rpm on WOT.. any suggestions?

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1 2)

TXjeepTJ on Oct 11, 2011

Oct 16, 2011 10:48 PM
by TXjeepTJ

17

1,799

Tuning, Diagnostics, Electronics, and Wiring

3200, converter, convertor, dacco, gas, hptuners, kicking, letting, lockup, misfire, missfire, silverado, stall, table, truck, unlocking

Converter in/out of lockup from going to bigger stall?

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1 2)

LS1FREEK on Nov 19, 2010

Nov 21, 2010 12:05 AM
by LS1FREEK

11

2,485

GM Drivetrain & Suspension

05, 98, bay, converter, efi, green, highway, lock, locking, ls1, missfire, net, silverado, speed, trucks, tune

No lock-up at highway speed

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1 2)

99LsSilverado on May 23, 2010

May 31, 2010 11:44 AM
by Bumpers

10

2,084

GM Drivetrain & Suspension

02, 48, 53, bank, code, gm, hemi, lean, left, missfire, p0131, rapid, sensor, silverado, truck

Damn codes

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1 2 3)

BIRCHZ71 on Jan 20, 2010

Jan 20, 2010 11:12 PM
by Wheatley

22

3,453

GM Engine & Exhaust Performance

17, 1996, 96, chevrolet, chevy, cheyenne, cylinder, ls1, manual, misfire, missfire, number, pickup, silverado, truck

#7 cylinder misfire on a 1996 chevy pickup

msevans7767 on Jan 16, 2010

Jan 16, 2010 06:58 PM
by msevans7767

0

1,460

New Members

50, 74, cam, engine, gm, install, installed, ls1, misfire, missfire, multiple, random, slammed, spark, swap, z71

misfires after cam install?

Bumpers on Dec 9, 2009

Dec 10, 2009 10:27 PM
by Bumpers

7

11,877

GM Engine & Exhaust Performance

2002, 2500hd, 60l, codes, custom, forced, gm, gmc, high, idle, induction, ltft, missfire, negative, oxygen, positive, sensor, trailblazer, tune

LTFT's high suddenly???

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1 2)

JOHN1L40 on Nov 27, 2009

Dec 6, 2009 06:09 PM
by JOHN1L40

10

5,666

Tuning, Diagnostics, Electronics, and Wiring

2000, 2005, 53, chevy, code, corvette, engine, fire, flashing, light, miss, missfire, p0300, random, rendom, silverado

Need some help diagnosing a random missfire code. flashing engine light.

YOOFORMULA on Sep 5, 2009

Sep 9, 2009 06:16 PM
by YOOFORMULA

3

948

Tuning, Diagnostics, Electronics, and Wiring

code, codes, gm, hemi, misfires, missfire, stumbles

misfires without codes?

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1 2)

GMCtrk on Aug 18, 2009

Aug 28, 2009 11:58 PM
by hirdlej

13

1,648

GM Engine & Exhaust Performance

53, bad, cat, common, engine, miss, misses, missfire

will a bad cat make engine miss fire

droppedchev on Jun 10, 2009

Jun 10, 2009 10:37 AM
by droppedchev

3

872

GM Engine & Exhaust Performance

18, 4, 48, chevy, compression, cyl, cylinder, engine, lq4, misfire, missfire, psi, rockers, sport, truck

LQ4 with a misfire - HELP!

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1 2 3)

ihdude on May 22, 2009

Jun 5, 2009 09:41 AM
by droppedchev

20

28,342

Tuning, Diagnostics, Electronics, and Wiring

2003, 22, brace, chev, codes, engine, fire, light, miss, missfire, pickup, s10, service, shock, tower

missfire on light throtle load

robbs10ext on Nov 13, 2008

Jan 5, 2009 11:31 PM
by 01cherryreds10

6

1,571

Midsize & Compact Trucks

04, electric, fan, fans, fuel, ignition, misfire, misfires, misfiring, missfire, random, relay, silverado, smell, truck

04 Silverado - randomly misfiring badly, horrible smell of fuel, electric fans random

CalSpeedPerformance on Nov 18, 2008

Nov 18, 2008 02:26 PM
by jasond26

1

883

Tuning, Diagnostics, Electronics, and Wiring

bad, causing, coil, earth, ground, improper, issues, misfire, misfiring, missfire, nos, performance, r6, top, yellow

Bad Coil Ground Causing Misfires?

foxySS on Aug 21, 2008

Aug 22, 2008 06:58 PM
by foxySS

4

10,679

GM Engine & Exhaust Performance

08, 1800, 2004, 53, ac, duramax, freeway, gmc, hesitates, hiccups, highway, huccups, lq9, missfire, rpms, sierra, turn

slight hesitation on highway?

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1 2 3 4)

GMCtrk on Jul 17, 2008

Aug 13, 2008 06:55 PM
by GMCtrk

34

3,335

GM Engine & Exhaust Performance

0430, 06, 2000, chevy, code, codes, install, lincoln, lt, mark, missfire, random, silverado, truck, volant

Trouble codes after LT install

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1 2 3)

terravast4 on Jun 14, 2008

Jun 24, 2008 01:23 PM
by terravast4

26

2,792

GM Engine & Exhaust Performance

2005, 48, 60lq4, chevy, corvette, fire, misfire, misfire2003, miss, missfire, multiple, multipule, p0300, random, silverado

Random Multiple Missfire...

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1 2)

bgray on Sep 19, 2007

Sep 24, 2007 09:36 AM
by OnyxSilveradoSS

11

2,310

GM Engine & Exhaust Performance

1494, 48, 70mph, code, dodge, gmc, heavy, load, misfire, missfire, p0101, random, sierra, silverado, truck, viper

Random misfire at or near WOT

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1 2)

ernie325 on Jun 10, 2007

Jun 24, 2007 03:29 PM
by ernie325

17

13,993

GM Engine & Exhaust Performance

2000, 57, 93441235, assembly, cheapest, code, engine, gm, injector, missfire, number, part, place, po303, spider, vortec

Help w/ 98 5.7 Vortech. Misfire Cyl 3

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1 2)

bayer-z28 on May 15, 2007

May 21, 2007 08:14 AM
by Dock Rocker

15

5,657

GM Engine & Exhaust Performance

1995, 1996, 22, 22l, burning, circuit, code, cylinder, gmc, injector, malfunction, missfire, oil, pcm, sonoma

Need help quick w/ 2.2 GMC Sonoma !!!

storm5.3 on May 13, 2007

May 13, 2007 01:36 PM
by storm5.3

2

860

Tuning, Diagnostics, Electronics, and Wiring

2500hd, 7, 81, 81l, chevy, compression, gm, idle, misfire, misfiring, missfire, sts, test, turbo

Have misfire problem

TieRod on Sep 8, 2006

Sep 9, 2006 01:48 AM
by negativeswitches

2

811

GM Engine & Exhaust Performance

2000, chevy, cranking, drive, driving, hesatates, hesitates, hesitating, hesitation, lq9, missfire, silverado

hesitation/misfiring after first drive everyday

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1 2)

hourang on Aug 17, 2006

Aug 25, 2006 08:21 AM
by hourang

15

1,334

Tuning, Diagnostics, Electronics, and Wiring

2006, 53, backfire, backfiring, exhaust, header, install, leak, misfire, misfiring, missfire, multiple, random, silverado, test

misfire/backfire

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1 2)

1ImperialSS on Aug 13, 2006

Aug 19, 2006 08:32 AM
by 1ImperialSS

16

5,546

GM Engine & Exhaust Performance

cylinder, flashscan, intake, misfire, missfire, performance, show, trucks

Strange misfire.....

TravisH on Jul 23, 2006

Jul 25, 2006 08:58 AM
by TigerFan187

9

858

GM Engine & Exhaust Performance

2005, 3, 350, 96, cylinder, fouling, gm, misfire, misfires, misfiring, missfire, smallblock, tahoe, trailblazer, vortec

Cylinder 3 misfire.. on a Vortec 350.

orangebowtie on Mar 2, 2006

Mar 3, 2006 05:42 PM
by orangebowtie

3

3,948

GM Engine & Exhaust Performance

210/218 owners... any misfire codes?

98TAauto on Sep 30, 2005

Sep 30, 2005 09:12 PM
by 99Silver6.0

2

572

GM Engine & Exhaust Performance

112, 206, 206212, 212, cam, code, codes, comp, misfire, missfire

Anyone ever experience misfire codes with 206/212 112 Cam?

budhayes3 on May 9, 2005

May 10, 2005 12:53 AM
by SSlow 4.8

3

797

GM Drivetrain & Suspension

2005, cammed, cylinder, ls1, misfire, misfires, missfire, multi, multiple, mutiple, p0300, po3000, settings, tahoe, vararam, vortech

P0300 multiple cylinder misfire

greentahoe on Feb 16, 2005

Feb 16, 2005 09:30 PM
by greentahoe

8

4,698

GM Engine & Exhaust Performance

Really rough idle!!

bodyguard6799 on Jan 13, 2005

Jan 14, 2005 05:14 PM
by KeukaZ71

2

632

GMT 800 & Older GM General Discussion

2000, 2003, 300, caddy, code, crazy, cts, driving, feel, general, missfire, motors, po, po300, truck

PO300 code misfire/detected

Wheatley on Oct 30, 2003

Nov 1, 2003 12:14 PM
by L82gofast

6

1,935

GM Engine & Exhaust Performance

57, bad, egr, gasket, l31, misfire, missfire, mod, mods, performance, tuning

L31/5.7 tuning corner... Help?

Pro Stock John on Aug 18, 2003

Aug 18, 2003 05:16 PM
by Speartech

1

609

GM Engine & Exhaust Performance