Problem Reports
Cadillac Eldorado
Report: Check Engine Light Due to Intake Manifold Vacuum Leaks
Cadillac Eldorado Problem
12 Reports
Model Years Affected: 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
Engine Affected: 4.6L V8
Average Mileage: 149,500 mi (119,000 mi - 180,000 mi)
Verified
An intake manifold vacuum leak can develop from a variety of sources, often causing illumination of the Check Engine Light with codes P0171 & P0174 stored. Thorough diagnoses will be necessary to pinpoint the cause in order to make the correct repairs. A "smoke" machine is often used to isolate the cause of difficult to find vacuum leaks.
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Visitor, 1996 Cadillac Eldorado, 119,000 mi
leak in intake manifold
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