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Old 10-14-2012, 10:15 PM   #4
BC_ZX3
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Join Date: Jul 2007
Fan#: 48751
Location: Vancouver, BC, Canada
What I Drive: 2001 Red ZX3 Turbo

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The oil filter should come with a circular, thick rubber gasket that fits snugly in a groove. However, the mating surface between that gasket and the oil filter housing should be checked for smoothness.
(I have also seen instances where the old gasket was not removed by mistake (two gaskets stacked on each other) but they tend to leak violently when under running pressure. )
If the oil filter is correctly installed and tightened, have a look at the pressure switch near it (about level with the top of the filter, more towards center of car.)
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