As I left my parents house today in my suburban pulling a lightly loaded trailer when it went to shift into fourth the Rpms dropped for a split second like it shifted then revved up like against nothing. I have 1st 2nd 3rd and reverse like normal but no lockup in third when the shifter is in third. No engine braking either. No clunk or bang when it happened and I wasn't hard in the throttle. 170k miles on it. Not sure if it has been into before or not. I got it with 140k on it. Fluid looks like ok and has 30k on it. It was shifting in and out of fourth on the way down like it should due to head winds.
Just looking for an opinion on where I need to start to look from these symptoms.
A quick internet search looks like it might be a valve body issue but I need to do some more looking.
Just looking for an opinion on where I need to start to look from these symptoms.
A quick internet search looks like it might be a valve body issue but I need to do some more looking.