Q: My 97 grand marquis start but after accelerating and I let go the car will turn off or it will idle what do.you think the resaon?

asked by on February 11, 2018

My car will start but will idle and when I press the gas and let go it will turn off on me.

Car is stalling Inspection $79.99 - $89.99 Get a Quote

Stalling in the circumstance that you are describing could be due to a faulty mass airflow sensor, faulty camshaft or crankshaft position sensors, worn spark plugs, wires or defective ignition coil(s), inadequate fuel delivery or pressure (clogged fuel filter, injectors, faulty fuel pump or pump circuit), contaminated or old gasoline, defective throttle position sensor, faulty idle air control valve, leaks in the EGR system, intake vacuum leaks, and so forth. But, based on what you are described the issue is probably "limited" and thus fairly easy to resolve. If you request an engine stalling diagnostic the responding certified mechanic will get this resolved for you promptly, and right at your location. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

I have a 1997 dodge ram 1500. It is not getting up to speed and acts like it has no power.

Hi there. Check the fuel pressure on the fuel rail and see if there is at least 30 psi. If the fuel pressure is low, then either the fuel filter is plugged or the fuel pump is not producing enough...

I have a 97 Buick century and when I'm driving the speedometer is bouncing and when I'm driving it starts to jerk sometimes

If the vehicle speed is constant, but the speedometer reading is erratic, there is a fault in the gauge cluster or in the signal from the transmission. If, though, you are referring to erratic engine operation, perhaps just at low...

Car won't start back up after driving 20mins to an hour

If you have to wiggle the shifter in order to get the engine to crank, then you may have a problem with the neutral safety switch on the transmission. The switch on the transmission has to be in park or...

Reversed battery terminals

Reverse polarity, at the battery, in a 12 volt electrical system on a car can cause a variety of effects including damaging the alternator. As an initial step in diagnosing the battery warning light you can request that a certified...

Window broken

Hi there. If the window has suddenly stopped working, then the most common reason is because the window motor failed. I would typically remove the door panel and check for power at the window motor when operating the switch. If...

Car stalled while driving

You likely have a crankshaft position sensor issue. Other problems that may exist include a faulty fuel pump or an an occurring vacuum leak. I would have a certified mechanic, such as one from YourMechanic, come to your home or...

Brake pedal hit the floor. Very hard to stop car.

First thing is you do not have any brakes and should not attempt to drive the vehicle until the brakes are repaired. The brake pedal is going to the floor due to a major brake fluid leak from the left...

My truck has been giving problems to start, and I end up getting a jump. However, my battery, alternator and starter are good

If there is no starter motor operation, check for presence of 12 volts at the starter solenoid when the key is held in the start position. Check for voltage drop on the heavy gauge wire from the battery to the...

Is it safe to drive without front lower sway bar links

Hello. Driving without sway bar end links can be dangerous because as you've noticed, the vehicle will not steer correctly. Sway bar end links are meant to stabilize a vehicle when turning and at high speeds. You can have your...

Related articles

Understanding the Mercury Intelligent Oil Life Monitor and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Mercury Intelligent Oil Life Monitor indicates when and what service your car needs.
Mercury Certified Pre-Owned (CPO) Car Program
Drivers Drivers who are shopping around for a used Mercury vehicle may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on to...
A Buyer’s Guide to the 2013 Acura ILX
Honda’s Honda’s luxury division has been busy making models to meet the needs and wants of a wealthier consumer base, but now Acura is back to a more affordable segment with a decent entry into the four-door marketplace. The ILX...