Question about 1997 Cadillac Catera
Fuel pressure should be 46-59pst regardless if engine is running or off
however, seeing a difference of 10psi once you turn the key off is not uncommon
The question should be what pressure is after an hour
if you loose too much pressure then you are probably dealing with a leaking injector ir a check valve in the fuel pump
Posted on May 08, 2010
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Posted on Jan 02, 2017
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