If so, then look to see if fuel is the problem by removing the cap on the Schrader valve on the fuel rail on top of the injectors. Check to see if the fuse to the fuel pump is good. If the pump cannot be heard, then replace the cap and lift the hood. Have the helper turn on the key for 3 seconds and off for 5 seconds and on again a couple of times. The computer shuts the power off to the pump if it does not see a signal from the crankshaft sensor. The pump runs for only 2 seconds at a time when the engine is not running. Starting from the basics, take off the fuel cap and listen closely for the fuel pump to come on as a helper turns on the ignition key. The 2023 Grand Cherokee fuel tank capacity of 23 gallons offers a driving range of 437 miles in the city and 598 miles on the highways.If you feel that the fuel pump has failed, then this is the proper way of diagnosing the problem before replacing an item that may not be needed. How many miles can you go on a tank of gas in a Grand Cherokee? The 2023 Jeep Grand Cherokee 4xe gets the 4WD drivetrain as standard and yet returns 23 MPG combined and has a 56 MPGe rating as per the EPA. How many miles per gallon does a 2023 Grand Cherokee hybrid get? The 2023 Grand Cherokee MPG ratings of 19 MPG in the city, 26 MPG on the highways, and 22 MPG combined remain unchanged from last year. What is the fuel economy of a 2023 Jeep Grand Cherokee? It faces competition from other midsize SUVs like the Ford Edge, Honda Passport, and Toyota 4Runner. The 2023 Jeep Grand Cherokee misses out on the larger capacity V8 engine this year and continues with the V6 powertrain option only with both RWD and 4WD drivetrains available as options.
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