1997 Mercury Cougar problems & reliability
76 owner complaints filed with NHTSA for the 1997 Mercury Cougar. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
2 complaints report injuries (2 injured).
Federal crash records (FARS 2020–2023): 1997 Mercury Cougar vehicles were involved in 5 fatal crashes with 2 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Engine and Engine Cooling → | 30 | 39% |
| Power Train → | 10 | 13% |
| Service Brakes, Hydraulic | 9 | 12% |
| Fuel System, Gasoline | 8 | 11% |
| Suspension | 6 | 8% |
| Electrical System | 4 | 5% |
| Tires | 4 | 5% |
| Seat Belts | 3 | 4% |
| Unknown OR Other | 3 | 4% |
| Visibility | 3 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 71,550 miles (middle 50% between 51,250 and 87,556 miles), based on 26 complaints that included mileage.
Complaints by incident year
What owners report
“My vehicles became totally disabled on a very busy highway with heavy after hours rush hour traffic. The manifold which is made of plastic broke were the coolant temperature sensor was built in, I also noticed that a few sparkplugs were flooded with coolant. I found out that there was a lawsuit on these vehicles but…”
Power Train · filed Jun 23, 2013
“On 5/19/2004 I had to have towed and replace defective cracked plastic intake manifold on a 1997 mercury xr7 cougar and hadn't been previously informed of any recalls then recently I had to replace yet another defective manifold (2nd car ) this shop informed me of a class action that I should have been informed of…”
Engine · filed Nov 26, 2012
“Fuel was noted leaking from fuel lines just aft of the passenger side door. Upon further investigation, fuel was seem running down the fuel lines and side of fuel tank. Leak was caused by fuel lines chaffing through on top of tank. Car had 51,000 miles on it. *tt”
Fuel System, Gasoline · filed Jul 11, 2011
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- BLOWER SWITCH/RESISTOR OR WIRING HARNESS
Engineering Analysis EA01001 · opened Jan 5, 2001 · closed Jul 31, 2001 · led to recall 01V230000
Technical service bulletins
113 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 1997 Mercury Cougar. The 10 most recent:
Some 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 f-53 motorhome chassis. Updated 2/23/10…
07212 · Service Bulletin/Repair Instructions · issued Oct 1, 2007
Extended coverage program 05n04 - extended coverage for composite intake manifold. This program is being provided as a settlement to a class action lawsuit. The terms of the settlement extend the coverage of the…
05N04 · Service Bulletin/Repair Instructions · issued Dec 14, 2005
General (pcm) power train control module programming procedures. *tt
042107 · Service Bulletin/Repair Instructions · issued Dec 13, 2004
General power train control module (pcm) programming procedures. *tt
04217 · Service Bulletin/Repair Instructions · issued Nov 1, 2004
Remote keyless entry (rke) - service tips. *tt
03181 · Service Bulletin/Repair Instructions · issued Sep 15, 2003
New transmission cooler flusher - service tips. 2003 escort and super duty f series included. *tt
03148 · Service Bulletin/Repair Instructions · issued Jul 21, 2003
New service part - number 5 needle bearing and race kit - 4r70w transmission - service tip. *tt
03261 · Service Bulletin/Repair Instructions · issued Jan 5, 2003
Engine-gear driven synchronizers-incorrect installation-camshaft position synchronizer (cmp) installation tool correct application. *mj
02221 · Service Bulletin/Repair Instructions · issued Nov 11, 2002
Incorrectly installed gear driven camshaft position (cmp) sensor synchronizer assemblies causing surge, lost of power, malfunction indicator lamp on and diagnostic trouble codes p1336, p1309 and p0340. *tt
870197 · Service Bulletin/Repair Instructions · issued Oct 22, 2002
Climate control a/c service tech tips. *eh
02208 · Service Bulletin/Repair Instructions · issued Oct 14, 2002
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
No NHTSA recall campaigns name the 1997 Mercury Cougar in our current data. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 1997 Mercury Cougar?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 71,550 miles — budget accordingly if the car is approaching that mileage.