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| Subject |
The head gasket leaks combustion pressure into the cooling |
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| Posted by |
Doug71zt(CAN) on February 13, 2021 at 1:22 PM |
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This message has been viewed 176 times. |
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| In Reply To |
Will a leaking head gasket cause surging under boost posted by GBlack300TT on February 12, 2021 at 11:02 PM |
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| Message |
System under high boost, not vice versa.
It could be knock retard causing the surging, happening when under prolonged periods of high boost in the higher gears..
How much boost are you running? What's your wideband O2 reading? Pump gas octane?
Yes, bad plugs can cause misfire under high boost.
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23:02:47 02/12/21
