THE FIRST TIME I CHANGED THE OIL IN MY 2008 MERCURY GRAND MARQUIS WHEN I STARTED THE ENGINE THERE WAS A LOUD MECHANICAL NOISE FOR A FEW SECONDS. I TOOK IT TO THE DEALER AND TOLD HIM TO CHANGE THE OIL AND LISTEN FOR THE NOISE WHICH THEY HEARD AND WAS TOLD ALL 2008 GRAND MARQUIS DO THIS .ALSO I NOTICE THE ENGINE IS NOISY IN THE MORNING WHEN I START IT. I THINK FORD HAS A PROBLEM WITH THESE ENGINES I…
2008 Mercury Grand Marquis engine problems
moderate 6 complaints filed with NHTSA · avg repair $3,100
Complaints
6
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 3 most recent
JUST BOUGHT THE 2008 GRAND MARQUIS, FIRST DAY, RADIO DID NOT WORK, (STILL DOES NOT WORK PROPERLY). TOOK THE CAR IN FOR OIL CHANGE 2500 MILES, ALSO ASKED THEM TO CHECK OUT A NOISE THE CAR WAS MAKING. I WAS JUST INFORMED YESTERDAY I NEED A NEW ENGINE. THEY THE DEALER SAID IT WAS SOMETHING TO DO WITH THE TIMING CHAIN AT FIRST THE REPLACED THAT PART AND STILL HAD THE NOISE. I WILL NEVER OWN A FORD PRO…
UNEXPECTED ACCELERATION OF 2008 MERCURY GRAND MARQUIS, WHILE MY FOOT WAS ON THE BRAKE, SLOWING THE VEHICLE. THIS HAPPENED TWICE IN THE PAST 3 DAYS. SECOND INCIDENT OCCURRED OCT. 31, 2008. EACH INCIDENT NEARLY CAUSED MY VEHICLE TO STRIKE ANOTHER VEHICLE. *TR
Common questions
How serious is the engine problem on the 2008 Mercury Grand Marquis?
It's a documented issue but not catastrophic. 6 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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