Shudder problem
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06-12-2007, 01:00 PM
Join Date: Jun 2005
Location: Easton, Kansas
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Shudder problem
I have a 1995 F150 5.0 A/C 4R70W with a shudder problem.
It happens at 1500 RPM while driving or parked.
Take the serpentine belt off and no shudder at 1500 RPM.
Replaced fan clutch and that did not change it at all.
Engine idles very smooth with no shudder until you raise the RPM and then the bad shudder at 1500 RPM, above this RPM the engine is smooth again.
I am thinking Air Pump, does anybody have any other thoughts.
It happens at 1500 RPM while driving or parked.
Take the serpentine belt off and no shudder at 1500 RPM.
Replaced fan clutch and that did not change it at all.
Engine idles very smooth with no shudder until you raise the RPM and then the bad shudder at 1500 RPM, above this RPM the engine is smooth again.
I am thinking Air Pump, does anybody have any other thoughts.