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ON SOME CHEVY VEHICLES THE OIL PRESSURE SWITCH HAS A DOUBLE RELAY BUILT INTO IT THAT IF IT IS BAD WILL ALSO FEED THE FUEL PUMP EVEN WITH THE IGNITION OFF
As well if the inertia switch was tripped that will also stop power to the fuel pump.
Would this cause the HVAC #21 fuse in the inside of truck to keep blowing?
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∙ 11y ago
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What do the fuel pump relay do?
Starts and stops the fuel pump depending on fuel pressure.
What does the fuel pump relay do?
Starts and stops the fuel pump at the correct time.
What is an explanation of relay 913157 function?
The fuel pump relay, is controlled by the EEC module, which provides power to fuel pump under various operating conditions. When ignition is in "OFF" position, EEC power and fuel pump relay contacts are open. After engine starts, power to fuel pump is supplied through fuel pump relay. EEC module senses engine speed and shuts off fuel pump relay when engine stops.
What does fuel pump relay do on 1988 chev truck?
Starts and stops the fuel pump.
What stops the gas from going from the fuel pump to the motor?
Blown fuel pump fuse, defective fuel pump relay, bad fuel pump, or clogged fuel filter.
When you run out of gas do you lose your power steering?
yes,because engine will stop if engine will stop ,power steering pump will stop. Yes, the power steering pump is powered by the rotation of the motor which is powered by fuel. If the motor stops the pump stops and steering becomes very labored especially at lower speeds.
If you blew a fuse would the fuel pump constantly kick on and off?
No. When a fuse blows it stops power from getting to the attached devices. It would power off and stay off. IF the fuel pump was attached to a self-resetting circuit breaker, then the power might cycle on and off.
How do you know if a fuel pump is going out?
The car stops running.
What are the causes for no power at the fuel pump on a 1988 c30 with a 5.7?
what is the cause of no power at the fuel pump
Why would there be no power to the fuel pump?
that can be because of the fuel pump relay,a severed wire to the fuel pump or the fuel pump fuse is blown.
How would you know when a fuel pump relay has to be changed?
probably when the pump stops working! WOW
When do you need a new fuel pump?
When the old one becomes noisy, weak, or stops pumping fuel altogether. Assuming the fuel filter is not clogged, the fuel pump fuse is not blown, and the fuel pump relay is good.
