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The Jeep Grand Cherokee was redesigned for the 1999 model year; the 2000 models have minimal changes. This model is also known as Jeep WJ.

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Why motor turns over but won't start

I am having an impressively bad time with my 04 grand cherokee overland. It started with a fluctuation in my volt meter on the dash then a long time after that the gauges started going ballistic so I went on a hunt for a loose ground wire… the main body ground in the engine bay was rotting out so I drilled a new hole and re-ran that wire. It started, then a few minutes later the gauges started bouncing all over the place again. I took the center console out to check for loose wires then went to start and engine will only crank over but won't even try to start. I noticed the key icon was on the dash so I considered the possibility that it could be the key chip module or the pcm so I disconnected the battery to see if it would reset. When i reconnected the battery, the alarm started going off. At the same time I lost the driver door functions (windows, door locks as well as all other door window switches but I can operate door locks from other doors). The alarm now goes off if i open any doors other than drivers side or turn the key in the ignition. The driver door jam wiring in the boot is all intact and getting power and grounding (sidenote:the speaker is functioning…) i disconnected the horn and kept checking wiring when a half hour later I discovered fuel was pouring out of the airbox. The motor was completely hydrolocked with fuel so apparently the fuel pump was cranking the whole time the key was just on and the alarm was going off. I have since removed all spark plugs, the fuel relay and cleared the fuel out of the motor as well as drained the oil and gas and put fresh oil in… my code reader will not sync with the vehicle.

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if you started the engine while the pistons were full of liquid fuel that is the same as starting a flooded engine. The engine could be destroyed because water does not compress like air does and you could have cracks in the block now.

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Bret Hazelwood estará eternamente agradecido.
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