2 weeks ago truck was missing on #4, checked and found water and oil around sparkplug. Replace plugs #4 coil valve cover and intake gaskets. Found a new design weather strip at dealer to kept rain water off engine. Ran fine. Now its back with miss at idle only. I check spark, compression and injector balance, all test fine. Found a tip on internet about variable cam timing actuator issue. Took it out, cleaned and tested it. No change. Looked in cylinder with bore scope, see no water or other concern. What next?
Feb 11, 2015 at 6:25 PM
