Question about Cars & Trucks

1 Answer

I have a 2002 isuzu rodeo 3.1 liter v6 and I try to start it and it tries to start but turns off. I also don't hear the fuel pump turn on every time I turn my key. Could it be just the fuel filter or is it the pump?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cars & Trucks Master
  • 5,256 Answers

It could be either one, if the fuel pressure is too low.
Try this, as a rough test of fuel pressure. On the engine on the fuel rail is a test port to connect a fuel pressure gauge. It looks like a tire valve, may have a cap on it that unscrews. Follow your fuel lines to the top of the engine-they will connect to the fuel rail -where the injectors are. If you find the test port, use a small screwdriver or little punch type of thing: be careful of gas spraying out, don't hold your head over the test port: you want to press in the center little valve and see if gas spurts up out of the valve, with the ignition key in on, not start. If gas spurts up, you know the pump is working well enough to get gas up to the engine. The fuel pressure on multi port injection is quite high, about 50 psi. You would need to check what Isuzu calls for. It really would be best to rent a fuel pressure tester, if possible, and connect it at that test port, turn the key to on, and see what pressure you have. If the pressure is as called for, then you know the pump and filter is okay, and can look elsewhere for the problem.
"...tries to start, but turns off..." you mean it does fire and try to run for a second? That does sound like it may be a fuel problem.

Posted on Dec 31, 2013

  • 3 more comments 
  • christina esquivel Dec 31, 2013

    Yes it starts but it sounds like it's struggling to stay on and it dies out

  • montehammons Dec 31, 2013

    Yes, I would think it is fuel pressure problem. Should check that first.

  • christina esquivel Dec 31, 2013

    I read about an emergency shut off button would that work? Where is that switch on my isuzu rodeo

  • montehammons Jan 01, 2014

    As far as I know, Ford is the only maker with the fuel shut-off switch. They called it an inertia switch. It would automatically trip in the event of a crash and cut electrical power to the pump./// If you are so inclined, and have a test light or voltmeter, check for power on the fuel pump wire at the electrical connector at the gas pump. Two instructions: 1. pull the electrical connector apart, find the fuel pump wire (I will try to find the color wire that is and post again), and on the car side of connector (not the tank side), you will stick the probe of test light or voltmeter into that wire, then make sure you also have a good ground for the tester. 2. Have someone be cranking the engine over while you test for a power signal on the fuel pump wire. When cranking, the pump is supposed to be on. If you have a power signal there, the pump will have to be changed. But if no power signal (and you have to know if your ground is good, tester won't register if not grounded...) if no power to pump when cranking, the pump circuit will have to be investigated.

  • montehammons Jan 01, 2014

    Okay, the fuel pump wire going to the gas tank is a black wire with orange stripe. If checking for power to the pump (when unsure it is working, or appear to have no fuel pressure) the black /orange wire should have battery voltage when cranking engine. It looks as if at the connector, the wire is gray going into the tank. I believe you want to check the black/orange wire.///And further, there is a fuel pump relay and a fuel pump fuse in the Fuse/Relay Box under the hood. If pump is not working, be sure and check that 20 amp fuse-should be labeled "fuel pump" and box position appears to be EB-12. Good luck.

×

3 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 233 Answers

SOURCE: where is the thermostat for a 2002 isuzu rodeo?

The thermostat is located at the end of the top radiator hose on engine.

Posted on Feb 15, 2010

  • 2 Answers

SOURCE: engine will turn over but

try the emrgency cut off switch located in the trunk behind the driverside tailight.

Posted on Oct 12, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Good day, I have a 2001 Isuzu Rodeo LS 2WD, manual transmission. A week ago I started having problems starting my truck, seems like the ignition switch was not working, I have to crank it up to four t


Could be your fuel pump failing. Try this; turn ign key to "on", not "start" then off after 5 seconds. Do this several times then try "start". If it starts right up this time, your fuel pump could be going bad, or the fuel pressure is dropping for whatever reason.

Oct 30, 2014 | 2001 Isuzu Rodeo

3 Answers

What is the firing order for isuzu rodeo 2002 2.2 lits


Please don't forget to rate! This helps us help you!!! Thanks!!


c17hydro_180.gif

2.2L VIN D engine Firing order: 1-3-4-2 Distributorless ignition system

May 12, 2011 | 2002 Isuzu Rodeo

1 Answer

2000 Isuzu Rodeo ls V6 4 wheel dr.


Check the fuel pressure it could be the fuel pump or pressure regulator.

Apr 28, 2010 | 2002 Isuzu Rodeo Sport

2 Answers

My Isuzu Rodeo LS V6 2001 ran out of gas and now


get under the truck and hit the tank hard with your hand the pump may be stuck a couple good wacks might work

Mar 24, 2010 | 2001 Isuzu Rodeo

1 Answer

How do you replace fuel pressure regulator


i have 95 isuzu rodeo with the 3.2l my fuel filter is good i can hear my pump turn on i know there is fuel in the rail but i dont know if there is enough pressure.the car tries to start but cant. any suggestions

Oct 04, 2009 | 1999 Isuzu Rodeo

1 Answer

SENDING UNIT ???????


most of fuel pumps were in tank, wire corrodes is harness under right front seat floor pan to tank
if fuel pump buzz is heard and car runs and when it doesnt run you cant hear the fuel pump try
turn ignition off wait 10 seconds
turn ignition to on position to (prime or hear pump buzz)
no buzz fuel pump not working check fuel pump relay(swap with another) and try again?
you could use test light to pump wiring and make sure your getting power to pump on this prime test no power relay or wiring problem.
power at pump, but no buzz fuel pump faulty

Jul 01, 2009 | 1997 Isuzu Rodeo

1 Answer

99 Rodeo 3.2 V6 fuel injected .


sounds like u may need a new fuel pump, the problem is the system doesn't hold fuel pressure after shut down, the check valve that does this is part of the fuel pump in the gas tank.

Jun 10, 2009 | 1999 Isuzu Rodeo

2 Answers

2004 V6 3.5 Rodeo


"when the fuel pump kicks....it makes a very short duration sound....you can hear it....but in seconds it will be gone......as gasoline has made its way to the engine.........

if you cant hear any noise from the fuel pump......it could be that the fuel pump realy is bad........if you happen to change the relay....and it still does not work.....then it is the fuel pump. that is fried.......

about the water.....i am not shure......unless there was water in the gasoline itself....or somebody put water in there in purpose....

hope this helps...

May 16, 2009 | 2004 Isuzu Rodeo

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

69 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

75197 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...