FORUM RULES UPDATED - The forum rules have been updated to continue to provide a friendly and safe environment for our member community. Please take a moment to review the updated rules and our terms of use and privacy policy. Click here for Forum Rules which has links to the 'terms of use' and 'privacy policy'.
I have a Mercruiser 5.7L/Alpha one combo that started acting up after I hired a "mechanic" to replace the impeller/gear oil as a side job. The boat ran great for about 20 minutes on the lake after the work was done and then started to shift from forward to neutral and back and forth while the...