Chevrolet Blazer P Codes (Powertrain) P0300 - P0399

Browse Chevrolet Blazer P Codes (Powertrain) P0300 - P0399 questions and answers. Choose a question that matches your symptoms.

17 discussions

Code Po300

2001 CHEVROLET BLAZER
I Have An Engine Code Of Po300 Which Is A Random Misfire And Cannot Find What Is Causing The Misfire. I Have Changed The Plugs, Wires, Cap...
1 ANSWER
5 IMAGES
Asked by scott goodis

Trouble Code P0335

2001 CHEVROLET BLAZER
Need To Know What Trouble Code Is P0335.
1 ANSWER
2 IMAGES
Asked by Kathleennalley

2001 Chevy Blazer CODE P0300

2001 CHEVROLET BLAZER
Random/multiple Cyclinder Misfire
1 ANSWER
Asked by KUNGFU

P0300 Code

2000 CHEVROLET BLAZER
Truck Runs Rough, We've Done Everything From Changing Wires, And All. Checked All Hoses, Checked Intake Valves As Well. My Fiance Is A...
1 ANSWER
Asked by KEB23

2000 Chevy Blazer PO300

2000 CHEVROLET BLAZER
I Took My Car Into The Shop. They Tested It And It Came Up With Po336. Replaced The Crank Sensor. Drives Great Now. Or At Least Alot...
1 ANSWER
Asked by Jinkz76

2000 Chevy Blazer Code P0300

2000 CHEVROLET BLAZER
4.3l Engine, Cmsfi. Code P0300 - Mulitple/random Misfire. Barely Idles, Runs Very Rough, Smooths Out At Higher Rpm But Still Is Missing....
8 ANSWERS
Asked by bpanning

Got A P0300 Code Rough Idle And Runs Horribly?

1999 CHEVROLET BLAZER
So, I Was Getting A Cylinder 4 Misfire Code, Changed Spider Injectors. Cylinder 4 Misfire Code Went Away. Then I Got A P0300 Code Rough Idle...
6 ANSWERS
Asked by trevorduhon

Engine Misfire - P0300

1999 CHEVROLET BLAZER
I Have A 1999 Chevy Blazer 4.3l, 4wd That Suddenly Started Running Very Rough And Could Barely Pull Itself Down The Road. Fuel Pressure Is...
1 ANSWER
1 IMAGE
Asked by dwaynedeterman

1999 Chevy Blazer PO300 - PO399 Numbered Code...

1999 CHEVROLET BLAZER
Engine Performance Problem 1999 Chevy Blazer 6 Cyl Four Wheel Drive Automatic Causes For A P0300 Code?
1 ANSWER
Asked by jpablo84

1998 Chevy Blazer Repairing According To Diagonistic...

1998 CHEVROLET BLAZER
I Know That The Code Po304 Refers To Misfire In Cly.4 But How Do I Fix It.
1 ANSWER
Asked by jamesman1

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P0001 - P0099P0100 - P0199P0300 - P0399P0400 - P0499P0500 - P0599P0700 - P0799P1100 - P1199P1300 - P1399P1400 - P1499P1600 - P1699P1800 - P1899

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