Question about 1997 Isuzu Rodeo

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Fuel pressure what should it be on a 97 rodeo

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  • Isuzu Master
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Is su who>? one that runs, wow.
its not that simple.
there are at least 2 readings, not counting, injector balance tests.
key on pressure
and running pressure.
4 engines. and 1 diesel.
what engine. displacement. 2.2L 3.2Ll 3.5L or ?diesel?

in general, 30psi running
on TBI engines, key equals running
MPI engiens, key near 40 then drops to 30 due to vacuum
action on fuel regulator
those are general statements, i have now idea what engine.

you can in fact look this up anytime here
alldata dot com.

Posted on Oct 13, 2013

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Posted on Jan 02, 2017

  • 74 Answers

SOURCE: my 97 rodeo dies when i back up.

check spark plug,spark plug wire,caprller,fuel filter and fuel pump.

Posted on Aug 02, 2009

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1 Answer

Have a 97 Isuzu Rodeo v6 has a check engine light codes for random misfire but it has no power taking off is backfiring and go through what's of gas has changed plugs have change coil packs of change...


You'll need to take it to a shop for a diagnosis before you waste any more money.
One possible cause is the fuel injectors or the fuel pressure regulator.

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Is the Check Engine Light on? If so, can you get a code reader to read the codes and report back what they are?

When you get in the car and turn the key just to the "On" position, do you hear the fuel pump wining for a few moments?

We need to determine if the issue is spark or fuel. Fuel pump failures occur to cause what you describe, without any indication of what has failed. I have had success in determining if it's fuel pump be removing the fuel pressure regulator, covering with a gag, and having someone turn the key on momentarily while I watch for fuel to pump out of the fuel regulator location. Be careful though, this is raw gasloline and flammable.

Dec 12, 2009 | 1997 Isuzu Rodeo

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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

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3 Answers

Fuel pump in my 97 rodeo works if i wire it to the battery,but does not work when i plug it in where it belongs.I've checked the fuses and they all look fine.


Same thing happened to me on my 1996 isuzu rodeo. My fuel pump worked part of the time. I actually bought a new one, then tested the old one when I removed it. Like you, I hard-wired it to the battery. It turned out to still be good.

It turned out to be a bad ground connection from the fuel pump. You can check it by --- 1) hooking the fuel pump back up where it belongs, 2) splicing a wire from the ground wire coming from the fuel pump and 3) grounding the wire (loosen a bolt head on the undercarriage, stick the stripped wire tip between a bolthead and undercarriage surface, then rachet the bolt head back tight. Then 4) just turn the ingnition key and see if the fuel pump engages and the engine starts.

Good luck!

Jul 15, 2009 | 1997 Isuzu Rodeo

2 Answers

Adjusting fuel pump


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1 Answer

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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

1 Answer

I have a 97 rodeo with 140k on it....it has alittle tapin the motor and just started stalling out but starts right back up.....also if i'm in drive and try to go in the passing geaar it is hessitant and...


My rodeo always has a little tap in the engine. But your stalling / no power issues sounds like it could be a clogged fuel filter or fuel pump going out.

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