Quote:
Originally Posted by paulgentile
My brown cam plug has popped come out twice, with only 4,000 miles in between occurrences.
Had a new one replaced and it seemed to go in quite easily. IMS has been done.
Is there any reason why this would occur?
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Two known causes for cam plugs popping: Too much sealant was used when reinstalling the cam covers, causing the adjacent oil return to plug and the oil pushes the plug out; or the AOS is not working properly and the crankcase is experiencing pressure rather than vacuum, which is popping the plug out.
Just as a "by-the-by", never use any type of sealant on the cam plugs.