Check Engine Light 3.8L 1994 Ford Taurus

The check engine light comes on every once in a while on my 1994 Ford Taurus GL with a 3.8L engine. I have been having to add transmission fluid to the
car, I make the levels do not go below the cross-hatched area on the dipstick.
Could this make the check engine light come on? It will come on either driving up a hill or going down a hill. I live in a mountainous area and there really isn't any flat areas.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Well, Carolyn... if the lite comes on, there will be a code stored.
Find an autoparts store that reads out codes and post them here... do NOT just let them sell you the fix. Do not just accept their definition, post the exact codes.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Not really on the same topic, but mine has been coming on and then going off by itself after a few days. When the light is off is the code still there? There is nothing wrong with the car (96 Windstar) that I can tell. It starts and runs fine.
Tom
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
snipped-for-privacy@wi.rr.com (Tom Duller) wrote in news:

Yep... the code stays.
Have it read out. Typical of that 'CEL on and off' but car runs fine symptom, are DPFE/EGR problems.
Check the tubing running to the dpfe sensor to start, have the codes read and report here.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Thank you! Is this something that can wait a few weeks? I don't have time (or money) to spend on this for a while.
Tom
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.