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#1
10-19-2003, 07:25 PM
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2003 Z71 engine light..yellow...constant
2003 Z71 engine light came on today....3000 miles...oil level fine..light is yellow and constant....whats up with this??? bad sensor???wet sensor from car wash??
Last edited by nevadacoin; 10-19-2003 at 08:27 PM. 
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#2
10-19-2003, 10:28 PM
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take it to the dealer you bought it from, make them fix it, its under warrenty.
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#3
10-20-2003, 06:30 AM
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Re: engine light..yellow...constant
The PCM has seen a fault in the emissions system and has set a diagnostic trouble code.
Your vehicle is covered under a 3 year 36000 mile bumper to bumper warranty, so the diagnosis and repair will be no charge to you.
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#4
10-20-2003, 11:49 AM
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Re: 2003 Z71 engine light..yellow...constant
It was a bad ground on coil...
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