If you were just replacing the fuel pump because it was badthe inertia switch should not be a. If you press down on the plunger it will reset the switch letting the electric fuel pump operate again.
V12 Fuel Pump Will Not Run Xj Jag Lovers Forums
Should inertia switch be up or down. Turn the ignition switch to the on position for about 10 seconds and then turn it off. Stu i plan on putting a re lay ahead of a toggle switch for an anti thief device than to inertia switch to pump. New front high pressure fuel pump and. This will let you pressurize the fuel system. Commonly referred to as the inertia switch the fuel pump shut off switch is designed to shut off the fuel pump when it is detected that the vehicle has come to an unusually sudden or forceful stop. Wellif that happened and now the button wont stay down and pops right back upsounds like the inertia switchspring loaded has broken and will need replacingwhen it pops back upyou wont hear the fuel pump come on because that switch will cut the power off going to the fuel pump when tripped.
In some cars these switches are in the rear near the fuel pump. In other cars they are up front behind the dash. On other vehicle models the inertia switch is located on the passengers side floor pan under the dashboard. The fuel pump shut off switch is an electrical switch that is found on certain vehicles equipped with internal combustion engines. If the red plunger is up that means that the switch tripped. If you have been in a significant impact the mechanism inside the switch will cause the switch to open the electrical circuit shutting off power to the fuel pump as a safety precaution.
The normal position of the inertia switch button is down if it has popped up then the switch is tripped and no power is going to the electric fuel pump. Thanks guys i got the old multimeter out and came up with what stu said going to go ahead and hook light to the no side. The reset button for the fuel pump inertia switch should be down if the button has popped up there is no power going to the electric fuel pump and the switch needs to be reset by pushing the. Depress the reset button on top of the inertia switch. We just got truck back after fuel pump work and it was running nicely for about 50 miles. The inertia switch is in the cab on drivers side up against the firewall to the left of the brake pedal or behind the right kick panel.
Please see picture taken of my 1989 f 250 just to the left of the clutch pedal on the interior this is what i assume is the inertia switch.
Gallery of Should Inertia Switch Be Up Or Down
