Vehicle maintains RPM and /or increases RPM when shifting gear. Dealership replaced the idle air by-pass control valve and I had no problems for a while but the problem has reoccurred. Suspect the valve is faulty or is installed in such a way that heat is affecting its performance. My brother disconnected it when the car was "acting up" and the problem did not continue. My concern is that this can be a danger when operating the vehicle on slippery road surfaces in winter and during rainy conditions. Not to mention that it's hard on your engine.
2000 Mercury Cougar acceleration complaints
Page 2 of 2: complaints 11 to 16 of 16, newest first, as owners wrote them.
While driving up an incline the vehicle cannot accelerate past 50 MPH even with foot pressing the gas pedal to the floor. Nlm
When the clutch is depressed while driving , the engine will maintain RPM and/or increase RPM by as much as 1500 RPM for several seconds or until the clutch is released in gear. This problem occurs while driving (shifting gear) or coming to a stop when the engine is hot. If I hit the throttle to try and bring the RPM down it will hang at the higher RPM.
Rpms remain high when clutch is engaged; rpms take far too long to reach a normal idle speed.
Accelerator stays at 3500 RPM without consumer's foot on the pedal.
When shifting the vehicle into gear or when depressing the clutch, consumer noticed high rpms. Also, rpms hung for a long period before returning to normal idle. Consumer has contacted dealer. Consumer recall 99v194000 dealt with the same problem for the 1999 vehicles, but courgar 2000 models were not included. Please provide any further details.
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