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Mobile785 · 07-19-2018, 03:30 PM

Trying to locate the Fuse or Relay to test to see if its one of those or the fuel pump itself that has gone bad. I have a 97 Adventurer on a Chevy p30 chassis. Also does anyone know the pinout on the connector? so I can climb under and see if its getting power back to the pump.

Jimmy

BFlinn181 · 07-19-2018, 04:28 PM

When you first turn on the ignition to start, the fuel pump should activate for a short time. If no ignition spark detected, it will shut off. In a quiet place, you should be able to hear the pump if outside the RV.

Most all fuses and relays for driving functions are usually in a box under the hood.

Mobile785 · 07-19-2018, 04:44 PM

[QUOTE=BFlinn181;4300329]When you first turn on the ignition to start, the fuel pump should activate for a short time. If no ignition spark detected, it will shut off. In a quiet place, you should be able to hear the pump if outside the RV.

I'm getting no noise from the tank that's why I think its either a Fuse or Relay or ultimately the pump. I checked all the fuses under the dash in the drivers compartment and they all tested good, but I don't know if there's another one. most cars have a relay box under the hood but I don't see one outside the front hood not sure if its under the doghouse or not.

BFlinn181 · 07-19-2018, 05:17 PM

[QUOTE=Mobile785;4300359]

Quote:

Originally Posted by BFlinn181

When you first turn on the ignition to start, the fuel pump should activate for a short time. If no ignition spark detected, it will shut off. In a quiet place, you should be able to hear the pump if outside the RV.

I'm getting no noise from the tank that's why I think its either a Fuse or Relay or ultimately the pump. I checked all the fuses under the dash in the drivers compartment and they all tested good, but I don't know if there's another one. most cars have a relay box under the hood but I don't see one outside the front hood not sure if its under the doghouse or not.

There is often a second fuse panel under the dash. It might be down near the driver's feet or higher. Some RVs have a section of the dashboard that comes off and you can access fuses there.

You could crawl underneath and test the wires to the fuel pump with a meter while someone else turns the key.

Mobile785 · 07-19-2018, 05:42 PM

[QUOTE=BFlinn181;4300424]

Quote:

Originally Posted by Mobile785

You could crawl underneath and test the wires to the fuel pump with a meter while someone else turns the key.

Yeah that's my next move, i guess.

twinboat · 07-19-2018, 07:22 PM

Some GM engines needed oil pressure to keep the fuel pump running. There is a pressure switch near the oil pressure sender.

It still has a timer to run the pump before starting, but if you jump the switch, it should run the pump, for testing.