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1999 Isuzu Rodeo LS V6 smooth idle in park, rough idle in drive. Now rough idle in park and dies when put into drive

I was driving up hill on a highway as the truck kicked down it started to loose speed as I applied more fuel it stayed barely running at 45 MPH and then backfired a couple times during about 1 mile and died.I was not able to start it right away but once i let it set for a couple minutes it will start and idle is smooth, that is untill put it into drive or apply fuel. I am able to start it again and it idles rough smooth out and again and there is rough idle in park and then (noted:a backfire comming from front of intake/ trottle body) it stalls and dies when put into drive then i cant start it again for 3 to 4 minutes~ my thoughs are Transmission / gear box along with TPS ~any thoughts out there

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Posted on Jan 02, 2017

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SOURCE: 1989 Chevy K2500 - idles fine but stalls out when put into drive.

Sounds like the injectors may be bad or just really dirty. You say that the truck is only used as a plow truck, so I would assume that it sits alot. If you dont add any fuel stabilizer to the tank, the fuel will start to degrade and the will gum up your injectors. One thing you can do is to pull the air cleaner assembly off and look at the injectors while the truck is running. Look at the bottom of the injectors while it is running. The injectors shouldbe spraying fuel with a fan spray of fine mist. If you see any drips of fuel in the this fine mist, that injector is at least dirty or on its way out. I would recommend that you change your fuel filter and then get some fresh fuel and the purchase some Seafoam fuel injector cleaner from your local parts store. Dont mess around with anything else. GET SEAFOAM. If it is in a plastic bottle it is not strong enough to do anything. Seafoam is in a metal can. Dump the seafoam in and run the truck as much as you can. This will help clean out the injectors.

Posted on Jan 22, 2009

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Very common problem is about a dime size hole wearing in the rubber elbow on the PCV valve located on the driver side rear of the intake manifold.

Posted on Oct 13, 2009

  • 666 Answers

SOURCE: 1996 Dodge Ram 1500 4x4 5.2L engine. Truck stalls

idle air controll motor is bad

Posted on Jun 18, 2010

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Okay I have a 2000 isuzu rodeo v6 4wd and I have been having problems with it since i've had it.I started having slight engine bog and then the car wouldn't even run i replaced the intake manifold gasket...

IT'S CALLED MISFIRE, that get a tuneup yet>?
lacking cash for shop
or cash for tools
how can one fix a misfiring engine,?
no scan tool either.
be impossible.
now DTC errors code stated by you.
there are 50 causes of misfire, at least, i have a list but nah.....
new spark plugs.
see those 3 coil packs, put on new HV wires there
new air filter and fuel filter,? a tuneup, do that first.
is compression at spec. 150 psi or 80? if at 80 the cam belt slipped
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pump pressure is 3 tests NOT one, infact its 6 tests, buy the book.
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one question really
can you force engine to have full power WOT>
wide open throttle up a hill,? (right foot aggressive)???
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