Having problems with your 1997 Mercury Grand Marquis ?
Starts with acceleration once warm starts fine already changed maf sensor.
Question isn't exactly clear. If you mean that you have to press the accelerator to get the car to start, you probably need to replace the Idle AIr Control Valve (IAC). Other possible causes include a fault throttle sensor or a vacuum leak.
Repair Help & Product Troubleshooting for 1997 Mercury Grand Marquis
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