Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
Hello! My name is Gary.Welcome to JustAnswer.I'm reviewing your question now, and will post back with a reply shortly.
What do mean revving out in 4th gear?
Do you mean the trans is slipping?
Does the engine light come on?
Have you checked the transmission level, engine running in park?
The first thing you need to do is avoid driving at this speed while this slipping is occurring.
We need to get the code that is set.
Hopefully it is not too late to save the transmission.
I've replaced many transmission internal harnesses for similar issues.
Is the spare a good runner?
If it is, I would drop the pan, replace the internal harness, and filter.
You are welcome Gregg.
Wishing you a speedy repair.