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Chevrolet Master
14,092 Answers
- Posted on Aug 15, 2009
Re: When doing a fuel pressure test on a 04 trailblazer 6...
4.2 ENGINE FUEL PRESSURE IS 50-57 PSI. 5.3 ENGINE FUEL PRESSURE IS 55 - 62 PSI.THIS IS WITH THE KEY IN THE ON POSITION WITH ENGINE OFF.
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