1999 Lincoln Navigator Engine cooling Problems
- Complaints
- 22about this part
- Share
- 17%of 132 total for the year
- Median mileage
- 100,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 22 complaints about the engine cooling of the 1999 Lincoln Navigator, 17% of the 132 complaints for this model year. Where a mileage was given, the median is 100,000 miles. 5 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Water, vapor, condensation keeps getting on to the coil on plug assembly on the passenger side of my engine causing water build up, electrical failure, misfires and spark plug explosions in to my engine, causing fragments of metal and plastic to fire in to my engine. This has happened to me several times now, been repaired, and continues to happen. …”
NHTSA complaint #10374643, filed 2011-01, 81,025 miles“#1 spark plug on 1999 Navigator blew out on rt 80 in pa 400 miles from my home. I had to rent a u-haul truck and trailer to tow my Navigator home at the cost of $600. I had to leave my race car and trailer in pa. I don't know how I am going to go get it. I have no tow vehicle.”
NHTSA complaint #10336568, filed 2010-06, 101,000 miles“I own a 1999 Lincoln Navigator (ford engine 5.4l dohc) only 52000 miles. The spark plug #4 blow out of the engine while driving on the highway. I've seen many of the ford expedigion and Lincoln Navigator owners experience this same issue. There is obviously a default with there engine for these models and thus should be recalled.”
NHTSA complaint #10030653, filed 2003-08, 51,870 miles“While driving at various speeds engine will stall without warning. Dealer notified. Vehicle would stall as soon as consumer takes off foot from accelerator pedal. Dealer repaired the vehicle; however, consumer had concerns regarding the incident will happen again.”
NHTSA complaint #8014962, filed 2004-05, 60,000 miles“Consumer noticed smoke coming from under the hood. Consumer pulled over, popped hood, and noticed oil leaking onto the manifold. Dealer was contacted. Consumer found technical service bulletin 03-6-2002 from 03/31/2003 that explained the exact problem.”
NHTSA complaint #10064622, filed 2004-03, 120,000 milesRelated service bulletins
- 10023943Oct 1, 2007Some 1997-2008 vehicles equipped with a 4.6l 2v, 5.4l 2v, or 6.8l 2v engine--spark plug thread repair procedure--not covered under new vehicle limited warranty. *nj this includes…
- 10019912Jan 1, 2006Engine misfire with diagnostic trouble code (dtc) pewee, p0302, p0303, p0304, p0305, p0306, p0307, p0308, and p0316.
- 10018745Nov 14, 2005Wds cop kit diagnostic tip - coil on plug (cop) ignition systems - engine misfire or rough running.
- 10014685Mar 21, 2005Use of stainless steel exhaust studs in service for 5.4l 2v engine.
- 10014666Mar 7, 2005Intermittent rough idle - non-commanded egr (exhaust gas recirculation valve) flow.
- 10011162Aug 23, 2004Engine misfire or running - coil on plug (cop) ignition systems - wds cop kit diagnostic tips. To include various 2005 models. * ar this article 04161 supersedes tsb 03-14-04.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2022 | 1 | 5% |
| 2019 | 1 | 1% |
| 2009 | 2 | 20% |
| 2007 | 1 | 2% |
| 2006 | 13 | 22% |
| 2005 | 5 | 10% |
| 2004 | 8 | 9% |
| 2003 | 10 | 8% |
| 2002 | 7 | 22% |
| 2001 | 4 | 5% |
| 2000 | 7 | 6% |
| 1999 | 22 | 17% |
| 1998 | 16 | 8% |
Other parts of the 1999 Lincoln Navigator
29 complaintsElectrical system
12 complaintsSuspension
12 complaintsVisibility (wipers, defrost, mirrors)
10 complaintsWheels
10 complaintsTransmission and drivetrain
8 complaintsVehicle speed control
7 complaintsBrakes
6 complaintsSteering
6 complaintsExterior lighting
4 complaintsFuel system
4 complaintsOther or unknown
4 complaints
← All problems reported for the 1999 Lincoln Navigator
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology