2005 MERCURY MARINER. SUDDEN STALLING OF ENGINE AT SPEEDS UP TO 40MPH AND LOSS OF POWER (THEN RECOVERS) AT HIGHER SPEEDS. NOTIFIED FORD AND SCHEDULED FOR SERVICE TWICE - DEALER UNABLE TO REPLICATE AND FORD RESPONSE IS THAT "EVERY CONSIDERATION HAS BEEN GIVEN TO THE MATTER....UNABLE TO FURTHER REVIEW CONCERN" WE HAVE YET ANOTHER SERVICE CALL SCHEDULED WITH ANOTHER DEALER BECAUSE PROBLEM PERSISTS…
2005 Mercury Mariner engine problems
moderate 11 complaints filed with NHTSA · avg repair $3,100
Complaints
11
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 3 most recent
I WAS DRIVING ON THE FREEWAY AND MY CAR JUST QUIT WORKING. I TOOK IT TO THE MECHANIC AND THE ISSUE IS THE COILS AND A NOW FRIED COMPUTER SYSTEM.
TL* THE CONTACT OWNS A 2005 MERCURY MARINER. THE CONTACT STATED THAT THE VEHICLE DECELERATED AND STALLED WITHOUT WARNING, WHILE EXITING HIGHWAY TRAFFIC. THE FAILURE WAS EXPERIENCED SEVERAL TIMES. ALL THE LIGHTS ON THE INSTRUMENTAL PANEL ILLUMINATED AFTER THE FAILURE OCCURRED. THE CONTACT WAS ABLE TO RESTART THE ENGINE AND THE VEHICLE RESUMED TO NORMAL FUNCTION. THE VEHICLE WAS TAKEN TO THE DEALER …
Common questions
How serious is the engine problem on the 2005 Mercury Mariner?
It's a documented issue but not catastrophic. 11 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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