...topping a hill at 65mph,why? 127,000mi-mpg good-engine light on-anti lock brake light on-only occur in passing gear for a split second,as if the transmission slips.
Could be a number of things. When was your last transmission service? A partially blocked or dirty transmission filter can cause what you are experiencing. So can a dirty fuel filter. I'd say solve the check engine light and you will probably solve the transmission issue.
