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GMC
Sierra
Trouble Codes
P Codes (Powertrain)
P0300 - P0399
GMC SIERRA P CODES (POWERTRAIN) P0300 - P0399
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Found 11 results
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P0300
P0303
P0305
P0308
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
GMC SIERRA
VIDEO
Is it Safe to Drive Check Engine Light?
Instructional repair video
GUIDE
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
GMC SIERRA
2000 GMC Sierra P0303 Trouble Code
Ok, Changed Wires, Plugs. Still Get A Po303 Code. Engine Is Unsteady At Idle. Runs Fine For A Second Then Boom A Miss. Does This About...
Asked by
Harrison1
·
13 ANSWERS
2000
GMC SIERRA
2002 GMC Sierra Cylinder 3 Misfire- Diagnostic Code...
What Do You Recommend On Trouble Shooting Since My Diagnostic Code At Autozone Read Cylinder 3 Misfire. Code# P0303 How Do I Locate...
Asked by
ozarks76
·
3 ANSWERS
2002
GMC SIERRA
VIDEO
How to Read Trouble Codes
Instructional repair video
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
GMC SIERRA
Misfire Codes P0300, P0305
The Truck Had No Real Problems Up Until My Wife Stopped To Put Gas In The Truck. She Didn't Fill It Up All The Way, And Had Driven...
Asked by
Cperez71
·
1 ANSWER
1997
GMC SIERRA
GUIDE
Check Engine Light Safe to Drive?
We are a team of ASE certified mechanics that have created this guide to help you understand if your car is safe to drive with the check engine or service engine soon...
Code P0303
Pulling Code P0303, Replaced Distributor And Rotor, Spark Plugs And Wires, Crankshaft Position Sensor, Fuel Pump Pressure Tested At 55...
Asked by
Jphillips120v
·
1 ANSWER
2001
GMC SIERRA
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
GMC SIERRA
Code Po300
Misfire, Check Engine Light.
Asked by
Glenn Van Scyoc
·
2 ANSWERS
2003
GMC SIERRA
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
GMC SIERRA
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