What is your question?
·
·
What is your question?
When I drive my truck around 80 miles per hour the check engine light start flasing and won't go faster the 80 miles per hour , When I reduce my speed the check engine will disappear and drive normal
What makes this problem better or worse?
Driving around 60 miles per hour the check engine wont. Come on
How long has your 2007 Lincoln Navigator had this problem?
4 days
3 Replies
You have a catalyst damaging misfire. This is a misfire that can ruin your catalytic converters. It may only be happening over 80 mph becuase of the amount of load the car is under at that speed. I would start by checking the condition of the spark plugs and fuel pressure. Do not drive much longer like this as it can cost a lot to replace the cats. Alex
Man,the NCSHP here in NC will get YARIS for going 80 mph! if you've been driving it with the CEL flashing for 4 days,the cats are most likely toast!
The check engine flash only when I hit 80mph so I just notice 4 days ago other then that the truck will drive fine on regular speed
I recently change the spark plugs and coils form cylinder 5 and 6 , and still doing the samething , but now show a misfired in cylinder 5 which I already change spark and coil . The computer give me this code P0305