Chevrolet Trailblazer Trouble Codes

Hello Everyone, I Am An Owner Of A Chevrolet Duramax Trailblazer 2.8 Lt Engine, Automatic Transmission, It Has 65,000 Miles Or Approx 105...

Received P0412 & P0418 Codes. Scanner States Secondary Air Injection System Valve A Circuit Malfunction And Secondary Air Injection System...

For A Little Over A Month, P0171 (system To Lean) Code Comes Up. My Brother Has Cleaned The Throttle And The Maf. It Then Worked Fine For A...

So, The Cooling Fan And Water Pump Have Been Changed, Wiring Harness Was Also Changed But I Notice There Looks To Be Two Gray Wires. Could...

My Vehicle Is Throwing Five Codes Two That Are The Same. P0030, P0128, P0035, P0030 And P0035 In That Order. I Am Just Wondering Where I...

My Moms Car Quit Running I Ran My Diagnostic Tool On It And Came Back With A Po455. Evap Gross Leak/no Flow. Replaced Gas Cap Did Not Fix...

One Day I Was Driving And Then The Check Engine Light Came On I Called On-star And They Said It Was Code Po171? Edit So Then After Getting...

I Have Changed The Secondary Air Pump As The Code Says And I Still Get The Same Message. I Have Checked All Around For Leaks And Cannot Find...

Today This Code Was Pulled On My Vehicle. Last Week When Trying To Restart The Vehicle It Began To Suddenly Shake(the Whole Vehicle) I...

I Recently Replaced A Vent Solenoid To Fix An Evap Concern. Two Days Later, The Check Engine Light Comes On. This Time It's P0171. My Lt...