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My truck is running lean it is a 4.3l chevy silverado

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It could be from a number of different issues, is the check engine light on? If you are wanting to further diagnose the issue, I will be happy to assist you.

Posted on Mar 28, 2011

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Posted on Jan 02, 2017

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2004 chevy silverado 5.3L V8 runs rough and stalls


Well, code 336 is for a problem with the crank sensor, and code 171 is for fuel system too lean bank one which is the side with cylinder one. Since you have checked fuel pressure and I will assume fuel volume is good, the crank sensor or circuit could be at fault.

Jul 09, 2013 | Cars & Trucks

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2000 chevy silverado ,5.3 liter engine .service engine soon light on so scanned for problem codes ,results bank 1&2 are running lean .what is the cause or problem that needs to be done to fix


Check for loos connections between the intake and the tube from the air filter. Check if the clamp is loose or leaks in the tube which can cause an incorrect reading. Other than that it may be a dirty MAF sensor which can be fixed by spraying carb cleaning or tuner spray in the intake or it may be bad or a bad oxygen sensor;.

Nov 22, 2011 | Cars & Trucks

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1999 Chevy silverado 5.3 engine setting codes p171 p174 already replaced mas air flow and checked for leaks


oxygen sensor failure
P0171 System too Lean (Bank 1) - Read Our Article On Oxygen Sensor Codes For Help With This Generic Check Engine Light Code
P0174 System too Lean (Bank 2) - Read Our Article On Oxygen Sensor Codes For Help With This Generic Check Engine Light Code
hope this is a bit of a push in the right direction ...

Feb 02, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

CHECK ENGINE LIGHT ON , WITH CODE SYSTEM TOO LEAN


Possible failed bank 1 sensor 1 oxygen sensor..

Mar 29, 2009 | 1999 Chevrolet Silverado 1500

1 Answer

2003 chevy silverado codes


Most likely cause is the intake manifold gasket

Feb 03, 2009 | 2003 Chevrolet Silverado 1500

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99 Chevy truck check engine light running lean on fuel


Sounds like a vacuum leak. try spraying carburetor cleaner or starter fluid around vacuum lines and intake while engine is running if you have a leak engine will speed up when cleaner hits leak.

Jan 21, 2009 | 1999 Chevrolet Silverado 1500

2 Answers

Chevy truck running rough 150,000 miles


Find out why the engine light is coming on, it is the info u probably need to fix the running rough problem. Most auto parts stores will read the codes stored in your trucks computer for free, write them down, and ask what they mean and how to correct the problem. If u need more info, return to this site w/ codes for further help.

Dec 30, 2008 | 1999 Chevrolet Silverado 1500

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