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09-23-2015, 09:08 AM
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#1 |
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Registered User
Join Date: Feb 2011
Location: sterling heights michigan
Posts: 55
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2003 2500hd Flashing Service Engine Light
Hi guys I have a 2003 Silverado 25000hd 6.0 with 170,000. Always on top of maintainance. Yesterday on my way home my truck slightly rev'd and the engine light started to flash then went off a minute later. Im going into town later to check out the code. Any Ideas? Thanks a bunch guys
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09-23-2015, 09:50 AM
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#2 |
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Registered User
Join Date: Oct 2009
Location: .
Posts: 2,187
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Re: 2003 2500hd Flashing Service Engine Light
When the check engine lamp flashes, it indicates that there is a misfire bad enough to cause damage to the cat. converter.
My guess is you will have misfire codes. Either P0300-P0308. |
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09-23-2015, 09:52 AM
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#3 |
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Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: 2003 2500hd Flashing Service Engine Light
^^^Yup
__________________
Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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09-23-2015, 11:01 AM
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#4 |
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Registered User
Join Date: Feb 2011
Location: sterling heights michigan
Posts: 55
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Re: 2003 2500hd Flashing Service Engine Light
WHat could cause the misfire code?
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09-23-2015, 11:26 AM
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#5 |
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Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: 2003 2500hd Flashing Service Engine Light
Its usually an ignition problem. Bad coil, worn/bad plug, bad wire. Sometimes it can be fuel or cylinder related (loss of compression) or a vacuum leak near that cylinder causing a lean miss.
__________________
Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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09-24-2015, 03:14 PM
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#6 |
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Registered User
Join Date: Feb 2011
Location: sterling heights michigan
Posts: 55
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Re: 2003 2500hd Flashing Service Engine Light
any recomendations on a quality coil and plugs?
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09-24-2015, 04:55 PM
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#7 |
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Registered User
Join Date: Oct 2009
Location: .
Posts: 2,187
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Re: 2003 2500hd Flashing Service Engine Light
AC Delco. for plugs. AC Delco/Delphi for the coil.
Before you throw parts at it, what code did you have? |
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