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High Engine Idle Due to Damaged Intake Gasket on Ford Bronco

Problem Description and Possible Solution

The upper intake manifold gasket may fail, causing an engine vacuum leak and a high idle condition. A damaged intake gasket should be replaced.

Problem Data
RepairPal Verified
Average mileage: 110,000 (95,000–125,000)
Engines affected: 5.0L V8, 5.8L V8
7 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996
8 people reported this problem
Viewing 1 - 2 of 2 comments
High idle. Ford dealer did a computer diagnostic pointing to a faulty intake manifold gasket. not repaired yet
89 bronco idling at between 1800-2000 rpms, upper intake manifold had 2" piece of gasket missing. Replaced gasket and now at first start up idles at between 1800-2000 till warm then idles at 600-700.