So today I was on the freeway, and I noticed that when I gave my car some gas, the RPM's would go up, but the car wouldn't go any faster. I got off on the next exit, and my car accelerated normally through gears 1-3. But once it shifted into 4th, the RPM's went up, and the car wouldn't really accelerate. Even if I floored it, the engine would rev, but wouldn't really go any faster. Almost as if it was in neutral.
What could be causing this?
2009 Corvette Z06 3LZ:600rwhp542rwtq-Weekend/track Car 2000 Trans Am WS6 A4:440rwhp 408rwtq-Sold 1972 Corvette Stingray: 380rwhp 405rwtq-Classic Car
If the car holds 3rd gear solid with no slip at WOT, and it slips it's *** off in 4th but shifts a firm 1-2 at WOT.....it won't be the 3/4 clutch or the band. Might be as simple as a seal on the 4th gear servo. I don't know your skill level, but if u cammed that car yourself u can do the servo seal for sure, with the trans in the car and leaving the pan on.