speedometer not working on my 2007 pt cruiser

it's probably your speed sensors

Did you ever get an answer to this? I have the same issue on my 2008

I wish ,,but it seems like no one knows ,Is your car stuck in first or second gear ,,mine is ,,I have reverse,,The transmission guy said cause the speedometer doesn't work the brains not giving a signal to the transmission ,,telling it how fast to go,so we need to figure out how to fix the speedometer ,,if you figure it out let me know please I'm stranded at a friend's house in the middle of no we're By the way ,I replaced the output speed sencer and it's not the problem and the tranny guy said it's not the silanoid pack

I have had this problem on and off for over a year. Every time I had to check the battery posts to make sure they weren't corroded or not making contact with the cables. It's happened about 4 times and every time this was the problem. Clean the posts and cable terminals then reinstall them. If that doesn't work, check the cable going to the engine block or ground to see if it is solidly connected. I just took my 2006 in to have the cooling system flushed and when I went to get it, I had the problem again. The problem seems to start when I shift too quickly into reverse or drive. Sometimes I snatch it into reverse or drive. (leftover habit from years of 4 and 5 speed gear boxes.) I'm about to go out to troubleshoot the newest iteration of the problem. Will let you know what happens.

My speedometer won’t work and my rpm is at 4 even though I was going extremely slow with flashers on. Can anyone help me?!!!!