CHEVY RUFF IDLE

2003 Chevrolet Silverado

Tiny

ruff_runner03

February, 26, 2010 AT 8:12 PM

Engine Performance problem
2003 Chevy Silverado V8 Four Wheel Drive Automatic 106000 miles

03 chevy silverado. Getting an intermittent rough idle and has a mass air flow code as well as a 171 and 174 codes (lean condition) replaced the spark plugs/wires, mass air flow and fuel filter. Also tested the fuel pressure and came out ok, but still getting the rough idle. Runs great at any speed besides idle. Any thoughts?

FOUND 4561 RELATED QUESTIONS

Running Rough

27 ANSWERS
34 IMAGES

Idles Rough/changed Ects

37 ANSWERS
3 IMAGES

1 Answer

Tiny

Jacobandnickolas

February, 27, 2010 AT 12:18 AM

The lean mixtures usually indicate a vacuum leak. Have you checked for leaks?

Please login or register to post a reply.

Code Read Retrieval/Clear - Dodge Stratus
 Step by Step video GMC Yukon XL 2000-2006
How to gather codes Ford Explorer
Code Read Retrieval/Clear Mercedes-Benz C230