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75, 75mph, blazer, code, egr, mph, p0300, p300, po300, symptoms, valve

Freaking P0300 Code!!!

Menace on May 21, 2011

May 24, 2011 09:45 AM
by swartlkk

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4

2,066

2nd Generation S-series (1995-2005) Tech

1996, 2002, 300, 97, bai, blazer, bravada, cat, cel, chevy, code, gmc, jimmy, plugged, po, po300

97 blazer po 300 and more

sorsha93 on Mar 11, 2011

Mar 12, 2011 12:38 PM
by rriddle3

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1

1,450

2nd Generation S-series (1995-2005) Tech

97, blazer, blazzer, po300

97 blazer help!

sorsha93 on Mar 12, 2011

Mar 12, 2011 12:01 PM
by rriddle3

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1

730

Engine & Transmission

Question

172, 2000, 300, 42, 43, at3000, blazer, check, chevy, code, engine, light, misfire, missfire, po, po300, random, tons

Codes po300,172&175

matt 13 on Jan 30, 2011

Feb 1, 2011 05:50 PM
by matt 13

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3

4,720

Engine & Transmission

1998, 43, 98, 99, blazer, chevy, code, fix, misses, p0300, po300, reset, reverse, vortec, zr2

P0300 Done everything except 1 thing??

todster on Aug 16, 2010

Jan 10, 2011 10:27 AM
by todster

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5

3,124

2nd Generation S-series (1995-2005) Tech

2001, 2005, 97, blazer, chevrolet, chevy, code, codes, k1500, maps, p0106, p0135, p0300, po135, po155, po300, truck

Codes - O2 and now MAP

arbie104 on Dec 28, 2010

Dec 30, 2010 08:22 AM
by Captain Hook

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8

1,939

2nd Generation S-series (1995-2005) Tech

Angry

chevy, po300

po300 please help

tanya on Dec 4, 2010

Dec 5, 2010 05:22 PM
by tanya

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4

937

2nd Generation S-series (1995-2005) Tech

1995, 1999, 2002, 300, 57, blazer, chevy, code, cylinder, engine, misfire, multiple, po300, po3000, random

Help, Dreaded Multiple Misfire Code PO300

Doug W on Nov 21, 2010

Nov 24, 2010 01:13 PM
by rriddle3

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2

3,082

2nd Generation S-series (1995-2005) Tech

Angry

02, 1995, 2000, 2002, 43, 99, blazer, chevy, code, codes, diagnostic, p0300, po300, starting, trouble

P0300 code

PvBill49 on Sep 30, 2010

Sep 30, 2010 03:12 PM
by rriddle3

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2

2,324

2nd Generation S-series (1995-2005) Tech

blazer, chevy, oxygen, po300, resolving, sensor

My PO300 Experience

High_Speed on Sep 22, 2010

Sep 22, 2010 10:05 AM
by High_Speed

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0

1,050

2nd Generation S-series (1995-2005) Tech

2001, ac, blazer, borg, bwd, chevy, code, cylinder, delco, fowling, great, pickup, plug, po300, spark, warner, wire, wires

borg warner plug wires po300 code

High_Speed on Sep 17, 2010

Sep 21, 2010 09:16 AM
by hemivette

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8

2,861

2nd Generation S-series (1995-2005) Tech

1995, 95, blazer, chevy, code, diagnosis, p0122, p0123, p0300, plugs, po122, po300, rich, runs, s10

P0122, P0123, P0300, runs rich?

wally72909 on Jul 29, 2010

Jul 29, 2010 11:12 AM
by rriddle3

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1

2,441

2nd Generation S-series (1995-2005) Tech

03, 200, 2000, 2003, 43, blazer, chev, chevy, codes, dtc, good, p0300, p0303, po300, runs

haha P0300!!

blazer blaze13 on Jul 22, 2010

Jul 22, 2010 06:21 PM
by blazer blaze13

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0

1,926

2nd Generation S-series (1995-2005) Tech

1993, 1996, 43, blazer, chevy, code, cylinder, ghost, hard, misfire, misfires, po300, random, start, tahoe, warm

Help-p0300 random cylinder misfire

(

Multi-page thread

1 2)

hunterman18 on Jun 16, 2010

Jun 22, 2010 07:55 AM
by hunterman18

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13

16,286

2nd Generation S-series (1995-2005) Tech

2002, 43, 95, blazer, chevy, damper, distributor, engine, fire, line, mark, mis, misfire, po300, r134a, tdc, trailblazer

Engine misfire

01blueblazer on May 15, 2010

May 18, 2010 08:16 PM
by swartlkk

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9

2,064

2nd Generation S-series (1995-2005) Tech

1997, 3500, 97, 98, blazer, chevy, code, cure, engine, ignition, misfire, module, p0300, po300, trouble, truck

97 Blazer, code P0300, done the usual

Sparkee on Jan 31, 2010

Feb 26, 2010 12:57 PM
by Sparkee

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8

10,871

Engine & Transmission

Exclamation

1996, 43, 96, 98, blazer, chevy, code, codes, diagnostic, heavy, load, p1870, plug, po300, s10, tcc

Help with DTC

MNHawk on Feb 23, 2010

Feb 23, 2010 01:38 PM
by MNHawk

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3

1,702

2nd Generation S-series (1995-2005) Tech

2000, blazer, chevy, code, codes, engine, fire, miss, missfire, missing, po300, po306, random, s10, trouble

random miss fire codes po300 & po306

das96blazer on Jan 4, 2010

Feb 22, 2010 11:11 AM
by BLOND1WD

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4

5,266

2nd Generation S-series (1995-2005) Tech

1996, 2000, 2002, 89060439, backfiring, blazer, chevrolet, chevy, code, fix, idle, jumps, plug, po300, rough, scanner, stop

6 Attachment(s)

2000 Blazer Rough Idle; P0300

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Multi-page thread

1 2)

bjd15 on Dec 27, 2009

Feb 13, 2010 09:49 AM
by bjd15

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10

22,653

2nd Generation S-series (1995-2005) Tech

02, 1994, 99, blazer, changed, chevrolet, chevy, code, codes, distributor, fixed, high, p0300, po300, rpm, timing

99 w/P0300 code - yes, another. Timing?

bwhite on Feb 2, 2010

Feb 4, 2010 08:28 AM
by rriddle3

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2

3,244

Engine & Transmission

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