My 97 jimmy only gets about 400 km , on a tank, the tank and lines were replaced , a year or so ago, the tank holds 72 lts/ 19 gallons vortec 4.6 , all wheel drive ,4 door, but the front shaft has been removed , the "car" seemed to "jump" on the front tires when driving .
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If you can hear the fuel running threw the injector rail. The regulator is bad. To test it, clamp off the return line. Or use a fuel pressure tester. Your going to have to replace the fouled plugs. Are you getting spark to the plugs?
It sounds like you have a defective fuel pump. The pump is locate inside the fuel tank, the fuel tank must be removed to replace the pump. Please follow this procedure to remove the fuel tank. Disconnect neg battery cable, safely raise vehicle, place floor jack under tank, loosen gas tank straps and allow tank to slowly drop halfway, disconnect( this is the hard part) fuel lines,and power connections at tank. Drop tank. With a brass hammer/punch carefully remove retaining ring/seal.Reverse to install.A new pump module will cost you $300-$400 at the dealer. Don't use a cheap pump replace the entire assembly because this is a float/sender/pump/ in one. Replace your fuel filter too or the fuel pump warranty is voided..
Was there fuel in the tank when parked 6 years ago? If there was, it has gone bad, and you are going to have to drop the tank and flush all the fuel lines, and clean the injectors, replace the fuel filter. I have let a car sit for a year or a bit more, and been able to start it, but after 6 years, the gas turns to varnish, and plugs up everything. You will probably also have issues with the brakes. You will find out as soon as you drive the Jimmy, usually the brakes will drag, and require bleeding of all lines, and usually caliper and brake cylinder rebuild. Good luck.
I doubt their is an access to the fuel pump threw floor board MABY in trunk the proper procedure would be this 1. Get the part 2. Disconnect neg. batt termanal 3. Drain the tank (fuel pumps like to quit on a full tank for some reason). 4. disconnect filler neck, fuel lines and wire harness (you may have to lower tank a little to get the lines and harness) 5. remove support straps 6. Lower tank 7. clean off top of tank where the pump comes out. 8. using a brass punch or something non sparking remove the lock holding pump assembly in tank. 9. carefully!! remove pump. 10. install new strainer on new pump and install. you might buy a new filter as well as most new pumps require this for warrenty on the ground with hand tools this can be done in aprox 3-4 hours!!
where did you get the pump replaced?a dealer or local garage There are 2 pumps for the jimmy one for a plastis tank which is an 18 gal and one for a metal tank which is a 19 gal.if the jimmy has a metal tank get the 19 gal pump . i ran into the same problem with my 98 jimmy
You hit the nail on the head. Chances are the sending unit filter "sock" is clogged. Most of the time you can clear it by blowing compressed air back through the tank.
I would however, inspect the suction line from the fuel pump to the tank for rust obstruction and hoses for de-lamination.
Disconnect the line just before it goes into the tank and try to blow air through it just to make sure it is not rusted shut.
Good luck, let me know.
Hi , you should have the injectors cleaned,you can try first by adding a good injectors cleaner in the gas tank to see if you notice any difference ,if you notice a a diference,clean the injectors...good luck...