Extended cranking or hard starting Jeeps could mean you have a fuel problem. Jeep Cherokee has had a starting problem due to a trouble with the rubber hose that is connected to the fuel pump. This rubber hose can become porous allowing fuel pressure to drop. To check for this problem turn the key to the run position (do not crank engine) and listen for the fuel pump. The fuel pump should run for a couple of seconds. After the pump stops turn the key to the off position and then back to run. This action allows the pump to deliver fuel and fill the rail back up. Care must be taken when installing a fuel pump, first make sure that the hose installed is fuel injection rated and do not over tighten the clamps.
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