Car Problem Reports

Mercury Grand Marquis Throttle Position Sensors May Fail and Cause Engine Performance Problems

 
Mercury Grand Marquis Problem
28 Reports
Me Too
Edit

Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2006

Average Mileage: 138,324 mi (65,000 mi - 238,220 mi)

Verified

The throttle position sensor (TPS) may fail. Common symptoms of a defective TPS can be rough idle, hard starting, hesitation on acceleration, poor fuel economy, and stalling.

  •  Rookie

    my 2006 grand marquis mercury stalls. It will stall while sitting still, cruising on the enterstate and everywhere in between.the only thing consistent about the problem is that , I can traveled as much as 350 miles without A problems , then all of A sudden allthe dash lites come on and the car is power less. the dealership has changed A throttle body ($700+) the car stalled going home! Please, I need your inputs .

    Flag This
  • Visitor, , 65,000 mi

    Car will cut off going down the road, and it will start right back up, replaced fuel filter and went almost 800
    miles and it did it again. The other day it cut off sitting in traffic, but it always cranks back up??

    Flag This
  • Visitor, , 160,000 mi

    going down the road and car just quit running and will not start

    Flag This
  • Visitor, , 100,000 mi

    bucks and hesitates around 35 miles per hour

    Flag This
  • car idles rough and stalls while running wont turn on for awhile then starts few minuts later

    Flag This
  • Visitor, , 238,220 mi

    ENGINE WILL START ROUGH IDLE NO THROTTLE NOT RESPONDING RICH SMELL OF FUEL BEFORE DIEING TRYED TO RESTART WOULD NOT. NO CODES SHOWED UP TESTED T.P.S USING METER NOT RESPONDING UNLESS YOU TAP THE SENDING UNIT REPLACED EVERYTHING GREAT.

    Flag This
  • Visitor, , 68,000 mi

    did a full tune up weeks ago to mee it acts like a plug not firing i was thinking maybe egr or tps might be bad,,rough idle chugs down the road

    Flag This
  • Visitor, , 155,000 mi

    itake maniflod blew i replaced it and new plugs. car ran fine for one day engine light came on and runs very rough. still not fixed

    Flag This
  • my car has trouble getting into 1st gear

    Flag This
  • stalls, hard to start heistant all the time. when driving to speed up, heistant, got to push gas pedal couple times.

    Flag This
+ See more reports
Ask a Question