The above-mentioned vehicle has 3.3L engine and recently rolled over to
200k. The engine runs great, but occassionally the "check engine"
light comes on when driving more than a few miles around town. When
driving on the highway, it comes on at about 10 miles out and does a
little sputtering now and then and runs a little rough.
Can anyone tell me what this might be? I’d like to pick your brains
and get some opinions here, before I take it into the shop.
Thanks in advance,
Brigitte