Question about Lincoln Navigator
I hope you didn't change the O2 Sensors based on a code.
OBD2 Systems don't work that way. The codes only point to an area of the powertrain with an issue. I also hope you tested the sensors first, otherwise you were installing parts, that were most likely okey.
Is the Air Filter clean?
Have you cleaned the MAF Sensor ---CRC MAF Cleaner?
Have you cleaned the Throttle Plate---CRC Throttle Body Cleaner?
How old are the spark plugs---More than three years or 50,000,get rid of them?
Are there ANY Leaks in the ducting to throttle or any hoses leaking---most common cause of O2 Sensor out of range and code set (MIL Lamp On)
Do you have PO300 Codes?---COP Coils Missing,All Fords have one or a year go bad.
If you have the original EGR Valve--throw that away,and get new one. Should have failed before now.
Coolant Temp Sensor ! Not working correctly would keep taking it out of closed loop and affect O2 Senors
TPS Sensor--worn and be your only issues. Two Torx screws to remove and avail on line or parts store ( do yourself) ONLY after testing and only if tests bad
Posted on Sep 29, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 02, 2010 | 2004 Lincoln LS
Sep 21, 2010 | 2003 Chrysler Town & Country
May 23, 2010 | 1996 Ford F150 Regular Cab
Mar 31, 2010 | 2003 Chevrolet Avalanche
Dec 22, 2009 | 1999 Ford Explorer
Dec 06, 2009 | 1995 Dodge Caravan
Aug 06, 2009 | 2001 Ford Escape
May 29, 2009 | 2003 Suzuki XL-7
360 people viewed this question
Usually answered in minutes!