Why is my oil pressure dropping when I accelerate?

2005 BUICK LESABRE
114,500 MILES
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ZACH1222
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  • 1 POST
I just had an oil change at a valvoline shop. When I accelerate slowly it is fine but as I accelerate faster my oil light comes on. I checked the pressure and on my digital gauge and it reads 130 then drops all the way to 0. When I let go of the peddle it returns to 130. Just started my car and now it fluctuates when idling.
Apr 20, 2012 at 8:05 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Is there any noise from the engine when it drops to 0?
Apr 20, 2012 at 8:13 PM
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ZACH1222
  • MEMBER
  • 1 POST
no the car sounds the same
Apr 20, 2012 at 9:27 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Chances are the pressure really isn't dropping but rather there is an issue with the oil sending unit or wiring. Check that and let me know what you find,
Apr 21, 2012 at 12:11 PM
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