GMC SIERRA P CODES (POWERTRAIN) P0300 - P0399 P0300

Found 6 results

Codes U0073 And P0300?

Please Help. Need The Engine Ground Wiring Diagram Or Really The All Of The Engine Wire Diagram To The Pcm. I'm Thinking It Has A Bad...

Asked by Earl91 ·

1 ANSWER

12 IMAGES

2009

Is it Safe to Drive Check Engine Light?

VIDEO

Is it Safe to Drive Check Engine Light?

Instructional repair video

Check Engine Light

Check Engine Light

Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...

Code P0300 Misfire

I Bought The Car Used From A Friend. I Did A Complete Tune-up With New: Spark Plugs And Wires Cylinders 4 And 6 New Coils All Four O2...

Asked by Paulo Rodriquez Salazar III ·

1 ANSWER

3 IMAGES

2001

1996 GMC Sierra P0300

The Truck Starts Fine And Runs Well. If I Drive It 20 Plus Miles And Let It Cool Of Just A Little (time To Shop At Lowes 20 Min) It Starts...

Asked by dabaker ·

2 ANSWERS

1996

2000 GMC Sierra Code P0300

Misfire On 4 Of The 8 Cylinders. The 4 On The Drivers Side The Coils, Plugs And Wires Are Fine. Had To Replace The Wires Going To The Coils...

Asked by LavaJack ·

3 ANSWERS

2000

How to Read Trouble Codes

VIDEO

How to Read Trouble Codes

Instructional repair video

Code Po300

Misfire, Check Engine Light.

Asked by Glenn Van Scyoc ·

2 ANSWERS

2003

Code P0300

Hello, After A Week Of Diagnosis, The Problem Gets Worse. At First, I Had A P0171 That Was Related To A Vacuum Loss, So I Replaced...

Asked by Loud_8.1vortec ·

5 ANSWERS

21 IMAGES

2003

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