Skip the auto shop - Our mechanics make house calls

Q: Jeep Cherokee Sport only starts by keying the ignition

asked by on

My friend has a 2000 Jeep Cherokee Sport. The only way we can get it started is with slightly keying the ignition--to the on, to the back and off, three or four times and then it starts.

It depends on what’s happening. If you are cycling it, when you cycle it and nothing happens the starter doesn’t go on and start the engine--then either the starter motor is bad, the ignition switch is bad or you’ve got power failure somewhere going to the starter, weak cables, corroded cables or connectors. But if you are talking about hearing the starting noise again and again until it finally starts, that’s often a weak fuel pump. Change the fuel filter and have the fuel pump pressure tested to see if it’s weak. A lot of times, a weak fuel pump can cause that. If you would like to have this inspected, a certified technician from YourMechanic can come to your home or office to diagnose your car starting issue and replace your fuel pump if necessary.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Speedometer not working

That particular vehicle uses an electronic sensor to operate the speedometer. If your speedometer is not working, that may be a sign that there is a problem with the speedometer sensor or wiring. A problem with the speedometer circuit or...

Q: I installed a new fuel pump, but the line from the pump to the carb is leaking at the flare fitting on the pump

Hello, thank you for writing in. The hardest part is done. Locating and noticing the leak is typically where people fail to follow through with their repairs. The flare on the line was likely bent or damaged. They are very...

Q: No power to the fuel pump

Hi. I would go back over a few things. Specifically, the fuel pump relay and fuses. Check the voltage drop across the fuel pump relay while trying to start it. An older relay will pass a resistance test (the contacts...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...