Question about 2005 Chevrolet Trailblazer Ext
The oil pressure is always high when you start it,the oil is cold and creates a different reading.
a few things...to consider
oil pressure sender defective
too much oil
wrong oil type
Posted on May 13, 2009
I would try the oil sending unit first it could be the guage but 9 out of ten times its the sending unit
Posted on Mar 13, 2009
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Posted on Jan 02, 2017
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