the o2 light is automatically every 90k miles flips on, to reset it you have to remove the instrument cluster out of the dash and move a screw on the back of the instrument cluster with the letters KSW to the other hole labeled the same, and then move it back to the original in another 90k....and again....and again.....

 

the o2 sensor light won''t go off when you change it. you have to take the gauge cluster out and move one screw to another hole for it to go off. get a haynes manual on your truck and it''ll show you how to do it.

 

yeah i hit the wrong button that was supposed to be a reply to someone else''s post, the wording now that i look at it again was a little wrong.... it should say the o2 light is set to automatically come on..... and obviously if you read the post i knew how to reset it and have done it before but i do appreciate your trying to help thanks!

 

i can't find a replacement radiator for my 86 pup..(1.9 liter engine) any ideas?

 

No problems with mine.