I have a 1991 suzuki sidekick all of the sudden it started surging and back fireing we replaced the fuel fillter plugs roter look good ehat could be the ploublem please help me. it is very low on power
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How is your fuel pressure after the fuel pump replacement? (requires adapters and a gauge.) You also can use "test fuel" (like starting fluid) to help determine if the problem is fuel or ignition. Just be careful as the stuff is explosive. For more in depth trouble shooting you might want to visit a Suzuki forum. (Your Tracker is a rebadged Suzuki Sidekick.)
There's no easy way to find and fix it. Check all the connections in the harness for corrosion and clean them up before putting them back together. Especially the ones at the rear of the vehicle. You could try running a jumper wire from the battery to as far back as you can reach. If this gets the pump working then splice this wire into the existing and bring it into your fuse box. Most manufacturer's leave at least one open spot that turns on with the key. Plug into that with an in-line fuse.
You may have to lower the tank to get at the wires there to solve the problem. A lot of dirt accumulates up there over time. Hope this helps.
try taking the fuel line loose at the fuel filter and see if any fuel comes out of it. if no fuel is coming from the tank before the filter more than likely have the lines reversed. also make sure that you are getting the proper pressure to the fuel rail.
Check for power at the fuel pump, I've seen these have a bad connection for the fuel pump in a connector behind the left rear taillight. If that connection is good and you have power and ground to the pump when you cycle the key or crank the engine, then replace the pump.
Jack the rear of the car up as high as you can, be sure to use jack stands of some type to support the weight safely. The fuel filter is usually mounted just in front of the gas tank.
it takes a ( #17 wrench I think) to loosen the fuel lines, a little fuel will leak out so have something to catch or wipe up the mess. Filter cost about $25.00 dollars. Have fun
the computer controls the fuel allowed into the engine, so if its not shutting the fuel pump off after the initial prime, it's probaly a computer problem, they are know for corroding inside the computer, can be fixed cheaper then replaced!