My transmission has been acting up it's an automatic(gasp) i know. anyway it doesn't want to shift into the next gear on time but only when my speedometer isn't working. when the speedometer is working it shifts fine. I've tried replacing the guage cluster that did nothing i tried to bypass the speedometers wire thinking it may be broken somewhere that made the transmission angry and stop working. im at a loss on what to try its extremely annoying to drive when the transmission acts like this :x