GMC Sierra P Codes (Powertrain) P0100 - P0199 P0174

Browse GMC Sierra P Codes (Powertrain) P0100 - P0199 P0174 questions and answers. Choose a question that matches your symptoms.

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P0171 Code, Cleaned MAF Then Got A P0174 Temporarily?

2013 GMC SIERRA

P0171 Code. Cleaned Maf Then Got A P0174 Temporarily. Sprayed Water At Base Of Intake And No Noticeable Difference. Not Sure Where To Go...

3 ANSWERS

8 IMAGES

Asked by hsaylor0

2003 GMC SIERRA

Codes Po171&po174. Just Replace Mas About A Week Ago With A Reman. Check Engine Light Is On Again. Reading The Codes Above. What Should I...

1 ANSWER

Asked by BillB55

2002 GMC SIERRA

What Is The Most Likely Remedy For Error Code 171 And 174 On The Truck Listed Above?they Are Running Lean Bank 1 And 2. It Was Reset And...

2 ANSWERS

11 IMAGES

Asked by paulvoitek

2000 GMC SIERRA

I Have Po174 Code On Bank 2 But I Cannot Find The Problem But I Do Have A Big Exhaust Leak Between The Manifold And The Head Pipe On Bank 2...

1 ANSWER

Asked by 09chevyman

1999 GMC SIERRA

When I Start My Truck In The Cold It Idels Rough And Dies Untill It Gets Warm. The Service Engine Light Came On After That. The Codes Are...

2 ANSWERS

Asked by mike hunter 88

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