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Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

please help

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Old 11-27-2011, 10:49 PM
shipps's Avatar
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Default please help
i just checked my codes and im getting a 42 can anyone help please i have a 94 6.5 turbo

i need to figure out how to fix it asap
 
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Old 04-26-2012, 12:12 PM
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DTC 42 - Fuel Temperature Circuit Low (High Temp)

sorry i cant help more than that
 
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Old 04-26-2012, 06:17 PM
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fuel heater problem, most likely, try unplugging and plugging back in the PMD too
 
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