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Asked by ShadeTreeWannabe Feb 16, 2019 at 10:29 PM about the 2004 Jeep Grand Cherokee Special Edition

Question type: Maintenance & Repair

2004 grand cherokee 4.0 I have a vacuum leak can hear it whistle but can’t find it, it seems every time I raise the hood it quits.
Main symptom seems to be power loss almost like a misfire. Slow to change from defrost to vents or floor.

1 Answer

103,425

Try a minuscule blast of starting fluid spray/ether around the intake and various vacuum hoses, if the engine RPM jumps up, you found your leak.

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