Question about 2004 Hyundai XG350

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2004 hyundai xg350 stalls when warm restarts when cold

Starts when cold stalls when it gets up to temp both fans work mafs cleaned slight before it shutsdown

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Sounds to me like it could be the engine coolant temp sensor.If the ECT goes bad it will run very rich which would allow it to run fine when cold but choke out and stall when warm.i know it sounds silly because people say what does coolant temperature have to do with the fuel ratio? But with fuel injected vehicles these day they do not use choke flaps or enrichment valves so the ECT sends the temperature info to the cars computer and it then uses that info along with info from other sensors to adjust the fuel to air ratio.you could try to simply unplug the ECT and see if it cures the stalling issue.If it does not stall when unplugged then replace the ECT

Posted on Apr 17, 2014

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6ya6ya
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Posted on Jan 02, 2017

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fischmilch
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SOURCE: where is the fuel filter on 2004 hyundai xg350

It is most likely in the fuel tank

Posted on Mar 09, 2009

ghost4548
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SOURCE: from cold start engine warms to quater temp then

Does the Check Engine light come ON when this happens? Whenever the "Check Engine" light comes on, there is always a DTC (Diagnostic Trouble Code) stored in the ECM (Engine Control Module). You'll need an OBDII (On-Board-Diagnostics) scanner to retrieve any codes recorded/set in ECM. Otherwise, guesswork. I have MANY ideas that could send you on a wild goose chase. I strongly suspect EMS (Engine Management System) sensor beginning to malfunction as it warms up. First strong suspicion is the crank position sensor (CKP) - however,usually always sets a DTC (i.e., P0335, P0336). The next suspicion is the Engine Coolant Temperature sensor. The ECM uses this sensor's signal to adjust fuel, timing, engine RPM, etc based on engine temp. If malfunctioning at a particuar point during engine warm up, it could be telling the ECM the temperature is LOWER or HIGHER than it ACTUALLY is, resulting in the ECM to increase fuel (flood it) or give it LESS fuel (starve it). If this malfunction lasts long enough, the ECM will usually set a DTC for that sensor circuit, either a Range/Performance code, or a "LOW Input" or "HIGH Input" code.

Posted on Jun 07, 2009

  • 73 Answers

SOURCE: how to change spark plugs 2004 hyundai XG350

GO TO AUTOZONE.COM

Posted on Aug 06, 2009

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SOURCE: where is the fuel filter located on a 2004 hyundai

Welcome to fixya.
Under the vehicle at the left front corner of the fuel tank.
If you need anything or schematics go to www.collisionrepairadvice.com

Posted on Aug 10, 2009

  • 14036 Answers

SOURCE: power steering in hyundai xg350 doesn't work. Put

power steering need bleeding if your reservoir was dry when you added fluid if.fluid was okay not too low.your power steering pump could be faulty.the cold weather will effect it.

Posted on Dec 13, 2009

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On cold mornings 2001 Aurora is stalling at stoplights till it warms up


air temp sensor are maf fault on the air intake. most of the newer types have the temp sensor fitted to the maf sensor box tel's engine to pump more fuel in until engine temp sensor reaches it temp then turns off the add more fuel. if not this it can be a clogged up egr and some fuel clean should sort this out if you not competent at removing it and cleaning it out, also another part can be the idle controller dirty injector cleaner can clean this out to.

Mar 24, 2014 | 2001 Oldsmobile Aurora

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2005 hyundai xg350 problem starting


TRY DISCONNECTING MASS AIR FLOW METER WHEN IT DOES IT AGAIN IF CAR STARTS RIGHT AWAY THEN POSSIBLE MASS AIR FLOW ISSUE

Sep 12, 2012 | Hyundai XG350 Cars & Trucks

1 Answer

04 elantra stalls when cold


No codes would point to fuel problem such as low pressure.
Was the car left overnight at the shop so it would be a cold start for the mechanic ?

Jul 01, 2012 | 2004 Hyundai Elantra

1 Answer

When the AC is not on, I am getting hot air blowing out of the vents, Ugh..2005 Hyundai XG350


clairify a/c on cold a/c off warm as in hot like heater hot??
did you loose a pen or something down the defrost vent????
ther is whats called a blend door inside the heater box under the dash
it opens or closes for warm or cold and varies inbetween to give warm .
ther is a motor that controls the door,, have you heard clicking in the dash as u move the temp dial???the lil motor has plastic gears that will strip.or it will just quit. sometimes the heater controler will be faulty itself, start by checking there.. get parts from auto wreckers cheapest way to go!!!

Feb 03, 2012 | Hyundai Motor 2005 XG350

1 Answer

Lost the cold temp on the air conditioner. Fan and compressor seem to be fine. thannx


the first thing you can do is to check the fuse of the iar condition in the dust board compartment,then check the relay if it is NOT OK,try to measure the freon inside the air con system

Sep 07, 2011 | 2004 Hyundai XG350

1 Answer

I have a 2002 hyundai xg350 it stalls at random. it doesnt sputter or cguh just a silent stall. Then when I try to restart it it sputters and i have to hold down the gas pedal


If the car runs fine otherwise then check the IAC; idle air control vavle. It controls the idle speed and may be gummed up with deposits. Sometimes all it needs is a shot of carb cleaner to get it operating properly. Also your MAF may need cleaning. Only use cleaner designed for this purpose. Lastly there may be a problem with the EGR valve; it may be stuck open. This can also be cleaned with carb cleaner after being removed from the engine. If the check engine light is on have the codes read, this may lead you in the right direction.

Aug 16, 2011 | 2002 Hyundai XG350

1 Answer

Car doesnt start when it is cold,when the temp goes up car has no problem starting.any suggestion to whats wrong?


you could try a oil stick that keeps the oil warm so to will not get cold or park it in side, i have put a lamp under my car when it gets cold to keep the oil warm..

Jan 23, 2011 | 2002 Hyundai XG350

1 Answer

The car starts fine but cuts out after it warms up and won't start until it is cold again


Sounds like O2 Sensor but if you have a c heck engine light on scan with obd2 scan and retrieve codes and fix guessing can be to expensive.

Dec 20, 2010 | 2004 Hyundai XG350

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