Question about 1994 Jeep Grand Cherokee

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My grand cherokee takes allot a time starting, I have to wait until the check engine light comes on. Sometimes this takes up to 10 minutes. Once the light comes on the the jeep fires right up. I am wondering what this could be and how to fix it?

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This could be several things. ours is in the shop now; the problem was the wiring harness to the fuel pump has an open circuit; and good luck figuring that one out-- not the best wiring design. but, if this is your problem, you should correct it quick, before the poor voltage going to the fuel pump burns up the pump motor-- list $$$$ on the pump is +/- $400. while you are trying to start the truck, you can hear the pump starting for two seconds, to pressurize the lines, then it stops until u crank the engine. have a helper crank it over while u stick your ear on the tank [ no im not kidding] and listen for the pump running. if u dont hear it, then the pump isnt getting power. check the relay, then check for continuity in the harness.

Posted on Aug 26, 2010

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