Engine/Transmission (1998.5 - 2002) 1999 auto transmission problem

[bkehoe]

Has anyone had the problem where the transmission jumps back and forth

between 48-52 miles p/h. The Dodge boys do not have a solution. HELP

This happened right after the filter and oil change on the trans. at 62K

 

[Graphic man]

Try an APPS reset that may work !

 

[Pat@BD]

There is a Chrysler recall for erratic tc lockup clutch operation. Does your tach jump up and down about 200rpm each time? If it does take it to your Chrysler dealer for the reflash 18-02-99 In most cases this fixes it right up.

 

[jabird]

Explain the APPS reset for me please. I have similar trouble

 

[ACoyle]

The reflash is a TSB put out by Dodge to reporgram your transmission controller to help alleviate this problem. It works for some, not for others. You can also try the following:



1) Clean your battery cables, make sure the connections and all the terminsls that conncct to the terminal clamp are very clean. Take you time doing this. leave the batteries are disconnected for at least half an hour. This will reset the APPS. Now to reprogram it. Connect the batteries. Turn the truck on, do not start. Slowly push the throttle to the floor and slowly back up. Your APPS is recalibrated.



2) Get one of the Automatic transmission noise filters that are available from one or more of the aftermarket trans dealers.



Maybe even do both. One of the causes is very small nose spikes messing up the computers.



Hope this helps.



AC

 

[BillGotthelf]

Check out www.happibox.com It worked for me.

 

[jabird]

looked at the web site... what does it do??? what does it tap into? I didnt really see much info on the site. I have a "filter" Dave Gorend sent out to me but I havent installed it yet.

 

[BillGotthelf]

I believe that it takes the TPS signal from the TPS which is routed to the ECM and then through the TCM normally (which is how the signal can get screwed up by outside electrical sources) and puts it directly to the TCM.