I have a gen 3 vx ls1 with auto gearbox an doesn't go in to 3rd stage without a rev once in gear it's algood other gears are good I can put into 3rd stage when parked up an goes into gear any ideas would I need to replace gearbox.
tried topping up fluid didn't do anything not sure if I put enough in tho an fluid hasn't been replaced since owning it
Take to a mechanic or Supercheap auto and ask them for a computer scan. Throttle position sensor is located on the throttle body and the shift solenoid is inside the transmission.
Instead of wasting a pineapple on a scan just have your transmission serviced, a good flush and filter will do wounders. TPS or MAF maybe your issue. Add to note transmission to test fluid level warm it up then get out on level ground while car in park pull the stick it should be on the hot mark. Oh it could be a stuck valve too, like I said get it serviced before you have to pay a few monkeys to have it repaired.
