Where in the hell is the Ignition Control Module
Where in the hell is the Ignition Control Module
09-06-2016, 11:34 AM
#2
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Join Date: 04-09-2006
Location: Vancouver, BC, Canada
Posts: 7,032
check this thread: https://www.chevyhhr.net/forums/prob...t-27383/page2/
09-06-2016, 01:41 PM
#4
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Join Date: 06-30-2010
Location: Kannapolis NC
Posts: 25,739
Dang Don, ya beat me to it.
A steady P0304 says head gasket/cracked head to me.
Have you done a plug check Mexdealer? If the #4 plug is suspiciously clean, there's coolant getting into that cylinder and "steam cleaning" the sparkplug.
Of course you are using the proper AC Delco Iridium plugs, right? Off brand plugs will create havoc in Ecotec engines.
A steady P0304 says head gasket/cracked head to me.
Have you done a plug check Mexdealer? If the #4 plug is suspiciously clean, there's coolant getting into that cylinder and "steam cleaning" the sparkplug.
Of course you are using the proper AC Delco Iridium plugs, right? Off brand plugs will create havoc in Ecotec engines.
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