Transmission mode switch, right?

[Lampster]

Ldub, thanks for the info. I am the 2nd owner (the 1st gave him up for adoption) and as far as I know, there is not an interceptor on the transmission. I have had the VX for 2 1/2 years now, and this just started a month or two ago.

[Ldub]

Kinda shoots my theory in the foot :homer: ...oh well, hope someone around here will be of more help.

Ldub

[Anita]

I looked up my service invoice for the mode switch replacement. I had the really violent jerking going on when the truck shifted between gears.

********************
Cause: Internal Failure
051414D R&R Inhibitor switch
76 WI
8-96017-511-0 Switch, Position


FC:44
Part#: 8-96017-511-0

49610 Mode switch internal failure, etc...

"Performed scan tool diag. found DTC P0705. Performed Diag. trouble tree found mode switch to have internal failure. Replaced mode switch cleared code and road tested vehicle. Trans shifting correctly at this time"
***************************
I do not know what the cost is. At the time it was covered by warranty. My mechanic said that he saw the mode switch fail on VX's with as little as 20K to mid 40's.

[SilverBullet75]

Hey there, I'm in Henderson... I had the same problem about a year ago and replaced the mode selector with total success! If you want, pm me and maybe we can hook up and I'll check out your VX's symptoms to see if they are the same as mine were. (or is yours as sporatic as mine was?)... anyhow, it'd be cool to meet you!
---JIM---

[nfpgasmask]

Hey there, I'm in Henderson... I had the same problem about a year ago and replaced the mode selector with total success! If you want, pm me and maybe we can hook up and I'll check out your VX's symptoms to see if they are the same as mine were. (or is yours as sporatic as mine was?)... anyhow, it'd be cool to meet you!
---JIM---

Hey, I just had this sporatic shift problem today with my new (used) VX. I'm gonna have to look into this mode switch issue. Anything else I should know from your experience?

Thanks - Bart

[SilverBullet75]

The thing that sucks most about the issue is that it is very inconsistent... But... If you are taking it to a shop to show them what is wrong, DON'T shut off the motor... Let it run, because if you shut it off, chances are the VX won't show the symptoms when you start it up again. I had that happen twice before I left the thing running, ran in and got the tech and had him ride with me to feel the slam-shifting. But, again, chances are the tech won't know what it is anyway. My rule-of-thumb is, replace the cheap stuff first before going for the guts of the tranny. Check your symptoms against all those that have been reported on this site. Watch for dash gear indicator light anomalies. The replacement Mode Switch is only about $150ish... and is a do-it-yourself replacement. I hope this all helps.

[nfpgasmask]

The thing that sucks most about the issue is that it is very inconsistent... But... If you are taking it to a shop to show them what is wrong, DON'T shut off the motor... Let it run, because if you shut it off, chances are the VX won't show the symptoms when you start it up again. I had that happen twice before I left the thing running, ran in and got the tech and had him ride with me to feel the slam-shifting. But, again, chances are the tech won't know what it is anyway. My rule-of-thumb is, replace the cheap stuff first before going for the guts of the tranny. Check your symptoms against all those that have been reported on this site. Watch for dash gear indicator light anomalies. The replacement Mode Switch is only about $150ish... and is a do-it-yourself replacement. I hope this all helps.

Great, thanks for the help. After reading like 3 or 4 threads on here, it seems like a 90% chance this is the issue (at least I hope so, since $150 and a DIY job sounds good compared to a tranny rebuild on a truck I just bought!). I suppose I can get this part from Merlin. I will call him on Friday and order it up. My only worry is that I don't want to do any damage by driving like this, but I guess I can just park, and try again until it stops doing it. Like I said, I have have the truck for only 3 days, and it only did it once, so hopefully this problem does not happen frequently.

Thanks -Bart