ATX shifting issues

[JustinSane]

fThe tranny will upshift threw the gears very quick rather then hold each gear like it should at WOT , then when you slow down it will down shift each gear rather abruptly, it also wont kick down into a passing gear when you mash it in high gear. its a 95 by the way, any ideas? possibly non related to this issue is the cruise control dont turn on, again maybe related and maybe not, please tell me what you all think.

 

[sho'd]

usually when the cruise isn't working, and your having said shifting problem, it usually points to the VSS. it's a cheap sensor, but a PITA to get at with tranny in the car. it can be tested with a digital multi meter, but you really have to have it out to get at it. my manual is in the garage, i will post the values for resistance on the multi test if your doing the work yourself, this is just a place to start. anyone else wanna chime in

 

[JustinSane]

yes please post the values and any other tips , most thankfull for the help.
1 other thing would this VSS also be playing havok with the ABS seems at slow speeds like in a parking lot i get alot of abs chatter in the pedal for no reason at all , i will just tough tthe pedal and get lots of feed back from the ABS. or is this another issue all together?

 

[wood_e]

Probably a seperate issue - you can check your ABS for codes. Search the forum as there's instructions on how to do it.

 

[JustinSane]

can some one please post the method and values on checking a VSS? im taking mine out tonight and have a used one i would like to check.

 

[sho'd]

you have pm Justinsane. test is outlined there

 

[socialdeviat]

To test it you'll need a O-scope. Since it puts out a analog a/c signal.

But Im betting its safe to say its your VSS.

Ill make a write up on it since Im doing it tommorow.

 

[socialdeviat]

Im also betting you are having an issue getting the car above say... 3200rpm?

and for some reason my cars speedo dont work either... I thought this had a cable... Guess not.

 

[JustinSane]

The car reved fine and speedo worked fine, it only had upshifting and down shifting issues, we tested the VSS with a ohm meter and it was just about outa spec, The used one i had laying around was in spec and i installed it and now the cruise works and the shifting is fine, so all fixed.

 

[sho'd]

The car reved fine and speedo worked fine, it only had upshifting and down shifting issues, we tested the VSS with a ohm meter and it was just about outa spec, The used one i had laying around was in spec and i installed it and now the cruise works and the shifting is fine, so all fixed.

glad that test worked out for you! good to hear you up and running again, i figured as much as the vss. pesky little sensors.

 

[JustinSane]

yes thanks very much.