Kroyton

Hi Andy Thanks for your reply. I tried the key dance and it says "Done" which I gather means no codes to show. Both sides of the wheel spin freely so I guess that rules out the drum At first I thought it was the brakes but the fact that without moving forward (to unclog brake if it had a problem) but just moving from R to D and bank to R it frees it up for a few meters and then have to do R to D and bank to R again and again to get it to move easily I think it might me something in the electronics that set the gear because again, nothing moved in that R to D to R shuffle, except the engagement of the R gear. http://www.chryslerforum.co.uk/topic/373-grand-voyager-auto-jumping-in-reverse-problem/ That page said it might even be the alternator although I have had no charging issues, but you know how these things are, one sensor gives a dodgy reading and the electronics misinterpret. Of course it could be the gear is stuck between R and Park I guess, the problem with Transmission shops is they just want to swap out very expensive parts such as whole transmission at £2.5k or other whole parts at £1.3k. The above page also suggested an OBD2 but as you say probably useless at my budget. I did find this software https://www.obdautodoctor.com/ which can run on a laptop as well as phone, it has a free edtion as well as some better options https://www.obdautodoctor.com/compare-editions I am going to order a mid range unit and see what the above does, I guess it will be useful to own such a thing for diags, I found the apps below in my search which may help others. https://itunes.apple.com/gb/app/car-scanner-elm-obd2/id1259933623?mt=8 https://itunes.apple.com/gb/app/obd2-expert/id1142156521?mt=8 https://itunes.apple.com/gb/app/carista-obd2/id954363569?mt=8 Thanks a lot for your help so far, any other suggestions of what to get them to look for next would be great! ---------------

I have a Chrysler Grand Voyager XS bought recently, I have done less than a thousand miles of around town driving. It is having a problem reversing, no issues with driving forward. I can engage reverse but it feels as if I am reversing with a brake engaged. If I go gently I can reverse the car but I am keen not to damage it. I was trying to figure out if this is a handbrake issue or transmission issue, in diagnosing I found that if I move it from R to D and Back to R without moving it allows the car to reverse a bit, so if I keep doing that I can reverse a bit each time without the feeling of the brake, I have seen suggestions that it may be a sensor or a fault with the alternator that impacts on Transmission Control Unit, but not clear on how I diagnose that. I do not want garages to go on a "let's replace this that and the other" , I also do not want to pay a Transmission Shop a fortune if the issue can be resolved with a sensor. I am wondering if the car is engaging R and Park at the same time, I am not clear whether Park is applying a brake or a gear? Also considering an OBD2 adapter, these seem to be a minefield, from risky £7 chinese devices that report blow an engine management system, to £100 products that seem to be overkill. Can anyone recommend an good one that supports Voyager? Seen refererence 'key dance', anyone know what this is? Any suggestions on a way forward, I bought this car because my last Voyager had a problem with transmission that was beyond economic repair.