Question about 2003 Jeep Grand Cherokee
You need to first determine if the problem is with spark or fuel system. Check for spark at plugs, same at coil. You can spray carb cleaner into the throttle body while cranking the engine and see if it starts. If it does, then the problem is in the fuel system.You can use a digital multi meter to do individual component tests as listed in haynes or chiltons manuals and to check voltages where necessary. Check all the fuses inside and outside as well as fuel and auto shut down relay. Most common failure is the crank position sensor, but if you replace it without testing likely it won't be that. When you turn the key, you should be able to hear the fuel pump running. Wish I could give you more but I don't have enough info and testing is far better than guessing!!
Posted on Oct 03, 2009
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Posted on Jan 02, 2017
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