So I have an 02 disco II and there is an oil leak that I think is coming from the valve gaskets... On both sides! Not a huge leak but I was about a quart low this last oil change.. My wife was driving it when the service engine light came on.. it did not go off after I changed the oil though.. It has never lit up before..It has about 85,000miles on it which most are highway. Any suggestions?? Has anyone takeen it to a dealership to get it serviced?? Cost?? Thanks in advance!

 

You have a Service Engine Soon this is a emission control failure
light (Yellow light).
You can have it scanned at a Auto Zone for free this will let you know what needs att:

 

Awesome thanks alot!! What might the culprit be?? I am changing my air filter with a k'n tonight when it arrives. I think the old one is pretty clogged, I shook it out and it was pretty dirty..

 

No way to tell but O2 sensors are about due.

 

If it is O2 sensors www.atlanticbritish.com has them on sell until
Nov 3rd I think.

 

which are the best to buy???

 

They have them at a good price but which are needed? front, back or both?

 

Buy all 4 02 sensors from Atlantic British while on sale, $59 a piece is a pretty good price.

 

so two front and two back??

 

If that whats what the codes reads.