I did a search here and found some info but not enough,so help if you can please It is the leak detection pump pressure switch I need to know where it is located and how to fix it. The information you was given shows the location of the leak detection pump and the procedure to remove it for a 99 jeep grand cherokee Keep in mind that you even listed another vehicle, a 2004 mercury in the additional information section. Check engine light coming on showing code p1494 | find answers to your 1999 jeep grand cherokee question from certified mechanics and auto experts.
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