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Old 12-22-2012, 10:20 PM
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496CHEVY3100 496CHEVY3100 is offline
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Go to passenger side under hood remove large plastic cover marked fuel pump -fuel relay unplug relay install jumper wire across where you unpluged relay with ignition on you should hear pump run with gas cap removed or have assistant hold head close to cap,if it runs you found problem ,my 1988 chevy does have a low oil pressure cut off switch it has 2 sending units one under distributer one beside oil filter the other in front of filter is knock sensor ,i had to replace both on mine before pump would run ,if i turned mine long enough to build 18 lbs oil pressure aprox 60-90 seconds it would start hope this helps
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