Own a Lincoln LS in the Phoenix area? EZ Swap LLC repairs and maintains the Lincoln LS for model years 2005 to 2006. Our shop at 9050 N 9th St handles everything from routine service to diagnostics and major repairs.
To help LS owners know what to watch for, we reviewed public records from the National Highway Traffic Safety Administration (NHTSA). For these model years NHTSA has 108 owner complaints on file for the LS and 1 safety recall campaign. The most-reported problem areas are electrical system (25), power train (20), engine and engine cooling (15).
Most-Reported Lincoln LS Problems
These problem areas come up most often in NHTSA owner complaints for the LS (all model years combined). Complaint counts reflect reports filed, not the share of vehicles affected, so popular and older models naturally have more.
| Problem area (NHTSA component) | Complaints | Share | |
|---|---|---|---|
| Electrical System | 25 | 23% | |
| Power Train | 20 | 18% | |
| Engine And Engine Cooling | 15 | 13% | |
| Air Bags | 14 | 12% | |
| Engine | 13 | 12% | |
| Vehicle Speed Control | 12 | 11% | |
| Fuel/Propulsion System | 8 | 7% | |
| Wheels | 8 | 7% |
Electrical System
25 of the 108 complaints (23%) mention the electrical system. Electrical problems are made worse by desert heat, which ages batteries, cables and connectors. We test the battery, starter and charging system and trace faults to the actual part. See our battery replacement and starter & alternator repair pages.
Power Train
20 of the 108 complaints (18%) mention the powertrain. Powertrain complaints can range from rough shifting to loss of drive. We road test, scan for stored codes and inspect fluids before recommending any repair. See our auto repair page.
Engine And Engine Cooling
15 of the 108 complaints (13%) mention the engine and cooling system. Engine and cooling complaints are best caught early in Phoenix, where heat pushes cooling systems and engine oil to their limits. We diagnose warning lights and check coolant, hoses and oil condition. See our check engine light diagnostics and oil change & maintenance pages.
Lincoln LS Complaints by Model Year
The LS model years with the most NHTSA complaints on file are 2005, 2006. Older model years have had more time to collect reports, so use this table as a guide for what to inspect, not as a verdict on any one vehicle.
| Model year | Complaints on file | |
|---|---|---|
| 2005 | 90 | |
| 2006 | 18 |
Lincoln LS Check Engine Codes
NHTSA owner complaints rarely cite specific trouble codes for the LS, so we do not have a model-specific ranking to show. These are the check engine codes we see most often on vehicles in Phoenix heat, and any of them can show up on a Lincoln.
| Code | What it means |
|---|---|
| P0420 | Catalyst efficiency below threshold (bank 1) Often a worn catalytic converter, but failing oxygen sensors or exhaust leaks can set it too. Can cause an emissions test failure. |
| P0300 | Random or multiple cylinder misfire Worn spark plugs, failing ignition coils, fuel or vacuum problems. Do not ignore a flashing check engine light. |
| P0171 | System too lean (bank 1) Often a vacuum leak, dirty MAF sensor, weak fuel delivery or a failing oxygen sensor. |
| P0455 | EVAP system large leak Missing or loose gas cap, or a disconnected or cracked vapor hose. |
| P0128 | Coolant temperature below thermostat regulating temperature Usually a thermostat stuck open. Fix it to restore efficiency and cabin heat. |
| P0442 | EVAP system small leak Loose or worn gas cap, cracked hose or purge or vent valve. |
| P0301 | Cylinder 1 misfire Commonly a bad spark plug or ignition coil on that cylinder. |
| P0401 | EGR flow insufficient Clogged EGR passages or a stuck EGR valve. |
Got a check engine light on your LS? A code is a clue, not a diagnosis, so we scan it and test the system before replacing anything. See our check engine light diagnostics.
Lincoln LS Safety Recalls
NHTSA lists 1 recall campaign for the LS in these model years, most often involving fuel system, gasoline. Recalls are repaired by the manufacturer at no charge to you, but each applies only to certain vehicles. Look up your VIN at nhtsa.gov/recalls.
- 2005 recall, Fuel System, Gasoline (campaign 05V113000): ON CERTAIN PASSENGER VEHICLES, THE FUEL TANK MAY HAVE A LOCALIZED THIN WALL SECTION IN THE LOWER HALF OF THE TANK. THE FUEL TANK MAY CRACK CREATING A POTENTIAL FOR A FUEL LEAK AND FUEL ODOR.
Serious Incident Reports
Of the NHTSA complaints on file for the LS, 6 involved a crash, 9 reported injuries. These numbers are drawn from self-reported complaints and are not verified findings. If your vehicle has an open recall, get it repaired promptly.
Keeping a Lincoln LS Reliable in Phoenix
Arizona heat is the hardest test a Lincoln will face. Batteries, belts, hoses, tires and engine oil all wear faster here, and a LS that spends its life in stop-and-go Valley traffic needs maintenance earlier than the owner's manual's normal schedule suggests.
Our recommendation for LS owners: follow the severe-service schedule, test the battery before every summer, inspect brakes and tires twice a year, and have any warning light diagnosed instead of ignored. If you are shopping for a used Lincoln LS, a pre-purchase inspection shows what the paperwork does not.
Lincoln LS Services at EZ Swap LLC
Get the details on our Phoenix Lincoln LS repair service, or choose a service below.
Battery Replacement
Test, replace and protect against Phoenix heat.
Details →Starter & Alternator Repair
Charging and starting system repair.
Details →Auto Repair
All makes and models, from domestic trucks to imports.
Details →Check Engine Light Diagnostics
Scan, test and pinpoint the real cause.
Details →Oil Change & Maintenance
Oil, filters, fluids, tires and scheduled service.
Details →Lincoln LS FAQ
What are the most common problems with the Lincoln LS?
Based on NHTSA owner complaints, the most-reported problem areas for the Lincoln LS are electrical system (25), power train (20), engine and engine cooling (15). Complaint counts reflect reports filed, not the share of vehicles affected.
Which LS model years have the most complaints?
The LS model years with the most NHTSA complaints on file are 2005, 2006. Older years have had longer to collect reports, so inspect any specific vehicle before buying.
What check engine codes are common on the Lincoln LS?
NHTSA complaints rarely cite specific codes for the Lincoln LS. On Phoenix vehicles in general, we see P0420, P0300 misfires, P0171 lean conditions and EVAP leaks such as P0455 and P0442 most often. Bring yours in and we will scan and test it.
Does the Lincoln LS have any safety recalls?
NHTSA lists 1 recall campaign for the Lincoln LS across model years 2005 to 2006. Each recall applies only to certain vehicles, so enter your VIN at nhtsa.gov/recalls to see if yours is affected.
Do you repair the Lincoln LS in Phoenix?
Yes. EZ Swap LLC repairs and maintains Lincoln vehicles including the LS, at 9050 N 9th St in Phoenix. Call or text (602) 246-9063 for an appointment.
Is a pre-purchase inspection worth it for a used Lincoln LS?
Yes. An inspection checks the engine, transmission, brakes, suspension, A/C and electrical system, and scans for stored codes, so you know the real condition before you buy.
How often should I service my Lincoln LS in Phoenix?
Follow the severe-service schedule in your owner's manual, since heat and stop-and-go driving count as severe use. Test the battery before summer and inspect brakes and tires regularly.
More Lincoln Models We Service
Source: public complaint and recall records from the National Highway Traffic Safety Administration (nhtsa.gov). Counts reflect reports filed and do not predict the condition of any individual vehicle.