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Engine cuts off at low speed

Tiny
OLDHEAD
  • MEMBER
  • 1993 BUICK PARK AVENUE
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 135,000 MILES
General question: If a car has a faulty oil sending unit that causes the vehicle to lose oil pressure, would that cause the engine to cut off?
Saturday, November 20th, 2010 AT 12:30 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
It could. Can you explaine what is happening?
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Saturday, November 20th, 2010 AT 12:31 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Yes because once the car is running the fuel pump is connected to it. If the oil pressure is low it will automatically cut the fuel pump off sonot to destory the engine.
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Saturday, November 20th, 2010 AT 12:33 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
When the engine fires up the fuel pump and oil pressure sending unit powers the fuel pump from there on out regarding the oil pump producing above 4 psi when it goes below it will cut it off or the oil pressure switch is out of calibration
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Saturday, November 20th, 2010 AT 12:40 AM

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