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05-29-2007, 08:51 PM
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#1 | |
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AF Newbie
 Join Date: Oct 2005
Location: tacoma, Washington
Posts: 27
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po157
2004 chevy 4+4 2500 pulled code po157. Was driving down highway pulling a 27 ft travel trailer and engine light came on but no change in driving got home ok engine light stayed on all day after the 2nd day on the way to have it checked light cleared itself any ideas
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05-30-2007, 04:12 PM
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#2 | |
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AF Newbie
Join Date: May 2007
Location: los angeles, California
Posts: 13
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Re: po157
try your gas cap on the side of the truck one time i didnt close it properly and my truck Check Engine Light was on all day cuz of it
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05-30-2007, 04:32 PM
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#3 | |
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AF Newbie
Join Date: Oct 2005
Location: tacoma, Washington
Posts: 27
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Re: po157
wouldnt it have been a different code for that??
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05-31-2007, 10:47 AM
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#4 | |
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AF Enthusiast
Join Date: Aug 2005
Location: Aldie, Virginia
Posts: 1,064
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Re: po157
Two possible casues. Bad o2 sensor; rear, bank 2. Or you could have an exhaust leak between the engine and the sensor.
__________________
  2000 Silverado Z71, 5.3L, K&N GenII Air Intake, Y-pipe Exhaust (no muffler), Bosch Platnium +4 plugs, 242k miles and still running. |
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