Question about 1999 Jeep Grand Cherokee

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Fuel pump will work or a day or two and then quit. Went through 3 pumps in a week. Tank is half full

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Fuel pump is not cutting out after the pressure is acheived.Replace the pump relay.

Posted on Jul 19, 2009

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1994 ford ranger 2.3 fuel pump has burned out after 2 weeks, Why?


how full do you keep the tank..electric pumps will cavitate when the tank is less than 1/4 full..they use the liquid tokeep cool..also have you put on a new filter? if not do so.. theclogged filter will make the pump work harder..

Jan 15, 2014 | Ford Cars & Trucks

1 Answer

Car goes dead when gas tank is half empty what is the problem


Faulty fuel pump. Probably internal ground in pump. When tank is full, the gas will absorb the heat the pump generates keeping the pump nice and cool. Tank half empty, the pump is now exposed, with its long nose stuck still deeply into the bottom of your 1/2 empty tank. Now with fuel pump exposed, it gets hot, the gaskets and things inside the pump swell up, and the pump fails to turn. Your car quits untill the pump cools off, (if your lucky) can be only a second between cool and hot/non function.

Dec 11, 2013 | Jaguar Cars & Trucks

1 Answer

Check engine light/evap leak


Getting a smoke test is the right direction to go in.
The computer vents the gas tank to the vapor canister while the engine is running. It also pressure tests the system for leaks. Some where between the gas tank and the vapor canister there may be a leaking hose or valve. Or it could be the gasket on top of the tank where the pump assembly went in.
The gas cap could have been a source for the leak, the other things are not involved.

Apr 24, 2013 | Oldsmobile Cars & Trucks

1 Answer

Put in new fuel pump and sending unit. but my gas gauge doesnt always work. sometimes is does and sometimes it doesnt


if it worked for a short period of time after doing the pump/sending unit the check the connections going to the pump/sending unit they would have been moved around doing the pump

Aug 11, 2012 | Cars & Trucks

1 Answer

2000 Ford Taurus. Would fill up with gas when close to empty or light come on. Then a couple weeks ago,gas gauge was on 1/4 tank then went a little lower and engine started bucking. Then light came on. ...


change the fuel filter for one, this is telling you that your pick up in the tank is getting clogged, I would drop my tank, and drain it, flush it, and check the pump at that time

Jul 26, 2011 | 2000 Ford Taurus

1 Answer

My fuel guage got below a half tank at about 3/8


1999 fuel pumps are located within the gas tank on this model and use a float assembly to send fuel levels to the dash gauge. This is why you may notice that parked on a hill or with sudden stops you car shows a little more or less fuel and then settles. It shouldnt go up and down as drastic as you describe so that makes me feel that the sending unit on the fuel pump is going bad. It looks like a half circle of contacts and as the float arm goes up each contact causes a different reading.. think clock face and clock hands. Watch it carefully now that you have filled it up and note when it gets to same range you were in before. If you see same problem it could be a failure.. if not then its possible a piece of debrs wash causing an intermittent failure. Unfortunately on these models the fuel pump and replacemetn is a lengthy process. You must drain the tank, remove it from vehicle and remove pump. insert new one and then do a pressure check at engine block as these new pumps have to maintain about 90PSI pressure to the fuel delivery system. Its not a weekend DIY fix to do this repair and if you see the issue its best to leave this job to a dealer or reputable service facility.

Jun 03, 2010 | 1999 Chevrolet K1500

1 Answer

Car will on start fuel pump not working


It is in the gas tank. Accessed through the back seat. there is a rubber seal between the gas tank access panel. Replace it otherwise you'll smell gas fumes when you're all done, and then you'll have to quit smoking. Who wants to do that....all in the same day. Get your pump online. YOu'll pay half. One pump fits a zillion bmw models. no need to replace the sending unit either.

Jan 01, 2010 | 2002 BMW 3 Series

2 Answers

Fuel Pump needs replacing with a full tank of gas on my '97 Chrysler Concorde


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!!

Apr 17, 2009 | 1997 Chrysler Concorde

1 Answer

I need help resetting my 94 GMC seirra's gas gage


the gas gauge is on the fuel pump assembly with in the fuel tank, you must have bumped it during reassembly. the only solution is removal. pull it out check for alignment and binding, reassemble being very careful. hope this helps.

Nov 05, 2008 | 1994 GMC Sierra

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