3sgte Fuel Pump Relay Bypass

In this article video the diagnosis and repair of the faulty internal fuel pump relay will be covered.

3sgte fuel pump relay bypass.

Discussion starter 1 may 5 2009. What pins on the relay can i connect to bypass this safety feature and jumper across the relay to pump out the. Acceleration is uneven this is also a sign of a bad fuel filter so have the fuel filter checked first in this case. Car is a 94 turbo import.

The fuel pump turns on but fuel pressure is low. The pump only runs for a few seconds and shuts off as the relay tells the computer the truck is not running and shuts off the pump. The pump will switch back to full speed over a certain boost pressure. A high pitched sound occurs when the engine starts.

External relay installations involve the cutting and. When the key is removed from the vehicle the fuel pump will continue to run. The car acts. When the relay fails the fuel pump won t operate.

The part used to fix the fuel pump relay problem for the nationwide recall on 2011 2013 dodge durango and jeep grand cherokees. Has 85k miles on. Our tipm bypass test cables work perfectly on these vehicles as long as you have not allowed your dealer to install an external fuel pump relay ie. Jump to latest follow.

The ecu switches the the fpr off at start up to run the pump full speed then switches over to the resistor after a certain time making the pump slow down. I want to pump out the fuel by removing the fuel line and pumping into a tank by turning on the key. A small length of copper wire can bypass the fuel pump relay inside the relay fuse block in order to operate the fuel pump for testing purposes. Replacing the fuel pump relay may not fix the problem because the source of the trouble may be the fuel pump.

Fuel pump relay bypass best way without cutting. Park the vehicle on a flat surface and open the hood. Joined apr 16 2005 1 322 posts. Chrysler models equipped with a total integrated power module or tipm may exhibit a fuel pump relay control circuit failure.