hardly worth mentioning
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
73,143 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2003 Lincoln Navigator engine problems

engine problem

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2003 Lincoln Navigator Owner Comments

problem #7

Aug 252011

Navigator 8-cyl

  • 199,000 miles


Loss of brake fluid, leaked through to cruise deactivation switch into cruise systems and electrical components causing corrosion which caused a short. Had trouble with cruise control working over time lead to higher flow of current that overheated and caused fire at switch under hood. Ford speed control deactivation switch fire. The fire originated in the area where the speed control deactivation switch is located (left rear corner of the engine compartment at the master cylinder. There was evidence of speed control deactivation switch failure prior to the fire including inoperable speed control, repeated difficulty shifting out of park.

- Whittier, CA, USA

problem #6

Dec 282010


  • miles
I own a 2003 Lincoln Navigator with the 5.4 liter engine and I have an oil leak coming from both back corners on each of the cylinder head gaskets. My mechanic shop did research and found that during this year of 2003 the gaskets could of been damaged during installation at the manufacturing plant. I feel like this issue needs to be addressed and for Ford Motor Company to issue a recall on this matter.

- Lebanon, TN, USA

problem #5

Nov 152010


  • 108,000 miles
My 2003 Lincoln Navigator has shut down completely three times in the last 6 weeks. Two of the occasions happened on the interstate while driving about 55 mph, the third instance happened in my subdivision driving less than 30 mph. After pulling the truck over to the side for safety the truck will not start immediately but will start after resting about 7 minutes. When the truck shuts down several lights on the dashboard light up. I explained the issue as well as I could to my local Ford / Lincoln dealership in madison, tn but they could not find any issues with it saying that no codes were showing. I also took the truck to a Goodyear service repair in brentwood, tn but they also could not diagnose the problem. After searching for this type of issue on the internet I found numerous customers that have had a similar experience, some saying that the issue is related to the "fail safe" security option kicking in while a person is driving. The issue of having my truck shut down completely on the interstate is dangerous and I would appreciate help on getting the issue resolved as soon as possible.

- Hendersonville, TN, USA

problem #4

May 272010


  • 99,000 miles


2003 Navigator, 99,000miles - spark plug blew out - engine lost power, gas spilling out of engine, during the Transport of 1 adult and 4 children. 1. one week prior to the incident, the truck was given a full service for 100K miles, less then 1000 miles later, the car is rendered inoperable, and the dealer offered to give $2500 on trade (the amount of the 100K service) or repair the engine for $5500. 2. car does not run 3. nothing is fixed yet, Ford will not admit a problem and will not assist the dealer.

- Longmont, CO, USA

problem #3

May 162008

Navigator 8-cyl

  • 81,000 miles
I bought a used 2003 Lincoln Navigator with a big 5.4-liter V-8 engine from wittmeier Ford in chico, ca. In 2004. The Navigator looked like a great deal. The price was $43,000. The Navigator had only 23,000 miles on the odometer. But the great deal blew up in my face when the used Lincoln Navigator spit a spark plug at 81,000 miles. The check engine light came on as the truck began to lose power. As we drove the car it continued to back fire. The ignition pack for that plug was shredded. I called wittmeier service and they said they knew nothing of the problem. The threads in the number 3 spark plug hole in the Navigator were stripped. We needed to re-thread the number 3 spark plug hole and replace the ignition pack. I read on the internet where this is a common problem and it will likely happen again. I believe Ford should take care of this problem.

- Paradise, CA, USA

problem #2

Jan 012005


  • miles
While driving 70 mph the vehicle would suddenly shut down. This problem has occurred four times. The vehicle would lose power steering and power brakes. The service dealer tried various fixes but the problem remained the same.

- Washington, DC, USA

problem #1

Aug 192004


  • 25,000 miles
While driving vehicle stalled four times on the highway. Also, vehicle had problems with getting the gear out of park. Contacted the dealer. The problem recurred.

- Birmingham, AL, USA

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