Question about 2004 Hyundai XG350
Starts when cold stalls when it gets up to temp both fans work mafs cleaned slight before it shutsdown
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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Posted on Jan 02, 2017
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
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Under the vehicle at the left front corner of the fuel tank.
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Posted on Aug 10, 2009
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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