There may be a burning or sweet smell coming from under the hood. You should hear the misfire when revving the engine when the vehicle is parked. Start with whatever parts of the vehicle the codes indicate are having a problem. If your vehicle’s check engine light is on, there’s valuable info stored in there. Most problems significant enough to make your Jeep Grand Cherokee not accelerate will cause a diagnostic trouble code. We’ve put a quick information table to help you determine why your Grand Cherokee won’t accelerate.
There’s a lot of information here, and it can be overwhelming. They can provide valuable insight as to what the problem may be and help you narrow down the problem. If your check engine light is on, get a code scanner and see what trouble codes are stored in the PCM (powertrain control module).
If your Jeep Grand Cherokee won’t accelerate, that is a serious cause for concern.
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