Question about 2003 Isuzu Rodeo
Fuse to the fuel pump keeps blowing. But when it start it runs good until it blow again with no warning, even if your are driving.
Sounds like a bad fuel fuel pump or a wire chafe someplace on its way to the pump
Posted on Oct 15, 2013
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Posted on Jan 02, 2017
I'm sure it's not, but check to see if the battery is connected backwards. It is theoretically possible that the engine was started in reverse, then the reason your fuses popped.
Otherwise, the popping of a fuse is indicating that there is something not right with the wiring causing a short.
Posted on Jun 11, 2010
Hi, the fuse comes after the relay and only powers the pump. Therefore, the likely problem is your pump motor having shorted windings, sorry. :o(
There is a way to test the pump before replacing, but you would need an ammeter. Disconnect the pump connector and use a jumper wire from battery positive in series with a high current or shunted ammeter that can handle at least 20 amps. Connect the meter to the pump and run it just long enough to get the amperage reading. The pump motor is on the gray wire, and make sure the black wire is grounded to get the pump to come on. The current should be less than about 15 amps. A good shop can run this test for about $40. The cost of a new pump will be many hundreds, so you might want to be sure it's bad before replacing. A new pump is $270 at Autozone, and labor to replace the pump will be several hours. Some shops will discount the price of testing the pump if you have to pay to replace it. Please let me know if you have any questions and thanks for using FixYa.
Posted on Jul 19, 2011
SOURCE: I have a 1994 Isuzu
whatever this fuse controls is drawing too much power, you need to know exactly what this fuse is for before you can find the problem,it may be the fuse for more than one thing.......hope this helps........cheers.
Posted on Sep 06, 2011
With the help of kori105's tester and after 3 hours of chasing and removing every thing from the dash I found the problem to be the factory anti theft I moved the wires around an the buzzer came on and the test light went out. The anti theft is located in the dash next to the glove box its black with one wire harness with a bunch of wires going to it. Thanks for the tester idea it worked great
Posted on Mar 03, 2012
SOURCE: 20 amp fule pump fuse keeps blowing on my isuzu rodeo 2004 v6 it will run for a while then it will blow also when i turn truck on it takes a while for it to starts it just cranks then kicks on
Better you use correct fuse and note there is no loose contacts between the fuse and its connection
Posted on Aug 01, 2012
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