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JOSEPH RYOBA Posted on Feb 12, 2014
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DIESEL FUEL MIXING WITH WATER IN THE RADIATOR

My engine 4jx1 has a problem of mixing diesel fuel with water in the radiator.And in the morning it has to undergo several cranks before it starts. And even when it starts it emites a lot of smoke.What can I do to solve this problem?. Which has persisted for a long time now.

2 Answers

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  • Isuzu Master 20,706 Answers
  • Posted on Feb 22, 2017
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Isuzu Master
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Hyghjacked post from 2014 to 2017 ,

no country stated
3.0 L direct injection diesel engine, turbo, some inter-cooled

this is a diesel fuel in the rad post (my guess wrong, its engine oil)
cracked engine./head,intake manifold or bad headgasket.
freeze damage?
not running 50% anitfreeze coolant and bam? damage.

Todd Arndt

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  • Isuzu Master 2,044 Answers
  • Posted on Feb 13, 2014
Todd Arndt
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Get some BLUE DEVIL and follow the Directions. You have a Blown head Gasket or a Cracked Intake or Head.

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5 Related Answers

simontricket

Simon

  • 235 Answers
  • Posted on Jan 21, 2010

SOURCE: oil mixing with Diesel and car emits white smoke.

The copper washers on the bottom of the injectors can give this fault if they are not renewed when the injectors are replaced .

If you have changed these allready and made sure you pulled them down exactly as the manual says in 3 stages then you may have a bad injector - see your Isuzu dealer .

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badealer888

Stan Cather

  • 414 Answers
  • Posted on Jan 20, 2011

SOURCE: My Isuzu Bighorn 4JX1 RJM Engine stalled after

White smoke is usually a sign of coolant burning. Carefully open the coolant cap, sniff the inside. If there is an exhaust smell you more than likely have head gasket problems. A further diagnosis is needed to be sure. Also ensure that any wires/plugs are reconnected. If the oil sensor is unplugged the vehicle wont start.

stevenhurc

Steve Hurc

  • 459 Answers
  • Posted on Jan 22, 2011

SOURCE: My Isuzu Bighorn 4JX1 RJM Engine stalled after

the engine oil pumps are in the rear of the engine(trans out) and behind flexplate /flywheel, were any of these 2 engine oil pumps touched if so the flywheel /flexplate has to be timed to crankshaft position, so you might have it in the wrong position, if your talking about the diesel lift pump (injector pump) that also supplies high pressure engine oil to injectors, after replacing this there is a learn procedure for the rail pressure control valve that is on pump. this can only be done by dealer or some one with Tech2 scanner tool.

Testimonial: "This was very helpfull and my car is now running. Thank you so much."

Anonymous

  • 41 Answers
  • Posted on Jan 22, 2011

SOURCE: My isuzu wizard 1999 model diesel mixes with oil,

If oil mixes in the combustion chamber, then you're up for an engine overhaul. Nozzle changes won't do.

alicantecoli

Colin Stickland

  • 22516 Answers
  • Posted on Mar 23, 2012

SOURCE: i cannot start my isuzu bighorn w/4jx1 engine. we already changed the turbo but still it emits too much smoke in the exhaust and after a while the engine goes wild and we cannot turn it off in the ign

Its a diesel and its running away so do not try to start till you do the following and yes i know i will be amolished for being a cowboy by the other experts but what you do is to make a gasket for the EGR valve from a coca cola can and seal it off if you dont it may run away and blow itself to pieces .If you do this then it run as normal as the older trucks never had these thing fitted and they all run ok in my day ,exactly whats wron i couldnt tell you without my head under the bonnet but do as i say and it run perfectly

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Related Questions:

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2answers

Isuzu 4jx1 mixing diesel in water. what is cause. and how to remedie

Where are you finding this? Diesel and water would normally only mix if water was getting into the fuel tank. Are you sure it is diesel? If you are finding it in the coolant reservoir it is more likely to be engine oil. This usually suggests a blown head gasket.
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Mixing diesel and oil 4JX1

Check out this forum. Injectors are leaking into the cylinder.
Replacement/repair is the fix.


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ISUZU 4JX1 engine it is mixing diesel and water how to fix it

Sounds rather like a blown head gasket. Fairly major repair.
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I do not understand what you are asking here.
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Why the diesel mixed in engine oil for isuzu bighorn 4jx1 ,how to fix?

lots of ways.
all bad.
someone poured it in is 1. (jiffyboobs?)
extreme engine flooding may be one way, on a very worn engine.
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My 4jx1 has a problem of mixing diesel with water in the radiator. How can I solve this problem?

This is typical of o-ring "seals" in the injector systemof the 4JX1 engine losing seal quality which will mix oil and coolant together and return both into the fuel tank and radiator. Smell the radiator. Most likley will smell of diesel fuel and perhaps show oil if you dip a timber ice cream stick into the radiator. Often occurs after overheating (towing or low on coolant). Buy an electric "ratchet" pump on eBay if you are going to fix the injectors [1 0-ring] yourself (and the sleeves [2 o-rings] per cylinder. You need a sleeve removal tool also. Instructions are available on Australian 4WD forum. The pump is to pump out of the fuel tank before you start the job. Take the input fuel line and hook into the pump. A plastic tube of the right size onto the outlet side and energise the pump. Drain into a 2 litre container(s) until diesel shows up instead of water. Drain the coolant before starting the engine repairs as some coolant pipes are made with rubber component pipes and could deteriorate if left too long. You need a copy of the manual (free online - do a search). You need to tighten the oil rail and injectors to the routine given to ensure good sealing. New copper washers for the injector ends are essential for good sealing. Ive had good results from using old rings for sizing and replacing with Vitane o-rings from hydraulic supply dealers. Label clearly when purchasing. Do not use standard rubber as they are not temperature rated. O-ring on internal injector plunger is "ceramic" and is not feasible for normal repairers and is usually not required. .RichW
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My ist experienced with my 4jx1 engine was, diesel fuel mixing wid water inside my radiator so i replaced set of O ring at nozzle, 2nd is after a month i cant start my engine until i replace RPCV sensor...

you need to replacing Injector 'O; rings properly,
we had good experience with those problems.
if u need timing pictures & Injector 'O' ring pictures i can send u.
Edirisinghe Auto Engineering(Pvt)Ltd.
Sri Lanka.
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If oil mixes in the combustion chamber, then you're up for an engine overhaul. Nozzle changes won't do.
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Isuzu 4JX1 EngineWont Start after replacing new injector

my isuzu bighorn will not start after changing valve seals and head gasket and after setting timing it still will not start. do you have a solution.
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