Various drivability problems can be caused by vacuum leaks. This engine has plastic tubes that become brittle and crack over time. These tubes can be replaced by normal vacuum hose but be careful when changing the Tee fittings or hose connectors because some have built in restrictor orifices (usually color coded). If the restrictions are missing, drivability problems will most likely result.
Average mileage: 121,965 (53,000–197,896)
Exhaust & Emissions affected: 2.5L 4 Cylinder
15 people reported this problem
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Vacuum line going to PVC was cracked at intake
chuggs, whezzes, dies randomly. but loves off roading .. go figure.. oh and this gets like 5-7 mph.. still an ok farm truck..
my truck shifts hard when i take off and some time when i unlock the doors it gose in and out of4 wheel some one told me vacum leak
Codes indicated " stuck in lean " replacement of oxygen sensors did not clear fault. CO% was high on emmissions test. Mechanic found vac leak and repaired.