1999 GMC Savana oil pressure kill switch

1999 GMC SAVANA
71,000 MILES • V8 • 2WD • AUTOMATIC
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KENASH
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  • 25 POSTS
Do 5.7L GMC vans have an oil pressure kill switch, activated by loss of oil pressure?
Thanks for any replies.
Mar 9, 2008 at 8:41 AM
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MERLIN2021
  • ✓ASE Certified Mechanic
  • 17,250 POSTS
  • ASE Certified Mechanic
Try this simple test, locate the fuel pump relay in the under hood fuse relay center, with engine running, pull the fuel pump relay, if the engine stops running the oil pressure switch is faulty, if it continues to run, it's OK...any codes stored? SES light on? Retrive codes and freeze frame data, post here...The switch is on the top rear of the engine, and has a three wire connector...
Mar 9, 2008 at 9:02 AM
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SLYGUY61520
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  • 5 POSTS
will a faulty oil pressure switch also make it not start?
Jan 19, 2009 at 6:59 PM
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MERLIN2021
  • ✓ASE Certified Mechanic
  • 17,250 POSTS
  • ASE Certified Mechanic
Yes, it's a saftey system...
Jan 20, 2009 at 4:47 PM
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