Dear All,
I just bought an Accord 99 LX 5-speed MT.
At normal engine temp (this is not happen if the engine still cold ) , if I change the gear, the RPM will rev up a little for awhile then down (just like you still push the gas paddle then push the clutch). The sequence is I put my foot off from the gas paddle then push the clutch, usualy it very quick. I drive alot of manual trans cars ( I hate AT ) for years. And I still drive my other cars (94 Camry MT and 94 626 V6 MT).
If I just release the gas paddle and push the clutch...it seem the RPM just stay there for half second before drop. Looks like vacuum leaks ?
Other problem, the engine temp gauge does not have grade, when start from cold...in 2 second it move to middle very fast and stay there. I dont think its right because the RPM still in warm-up mode (above 1000) and the RPM will drop to normal after warm-up (usualy take a couple minute).

Thank's