Q: My 2000 Jeep Grand Cherokee was driving okay but now when I go to press the gas pedal it does not accelerate

asked by on

The Jeep seemed to be driving fine but then once I got home and left with it again as I was driving down the road I noticed when I pressed the pedal it would not accelerate whatsoever and then I further realized it would make a clunking noise when I pressed the pedal. I have no idea what this could be and need some help

My car has 123456 miles.

What you are describing sounds like you may have a clogged or damaged catalytic converter. The catalytic converter converts toxic exhaust gases into less harmful pollutants that are suitable to be expelled into the atmosphere. When the catalytic converter is clogged, this causes these gases to be backed up into the exhaust system not allowing the engine to breathe properly. When this happens, the engine is forced to work much harder to expel these gases. This often results in the engine bogging down, hesitating, shaking and causing very poor fuel economy. This should also cause a check engine light to come on as the O2 sensors should be reading the incorrect amounts of oxygen in the exhaust gases if this is your problem. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My 2000 Jeep Grand Cherokee was driving okay but now when I go to press the gas pedal it does not accelerate

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

Get a quote

What others are asking

Q: ABS light on dash board

Hello. Since this could be a variety of potential issues, I would recommend hooking the car up to an OBD scanner to download any trouble codes that may have registered as a result of the light coming on. I would...

Q: Q: Satellite radio not working

The radio is most likely the cause, since the preview channel should stay on if it was working like it should. The radio is capable of storing codes if it runs into any errors. It will need to be scanned...

Q: Car started lurching and sputtering while driving

There’s an easy way to see if the MAP sensor is to blame and that is to disconnect it. Then try to start the engine. The engine will run without it using other sensors. But from your description, that doesn’t...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...