Question about 2002 Hyundai Accent
Ems sensor is start with. They will wear out in time and cause this problem is start there.
Posted on Jan 03, 2015
Posted on Oct 13, 2013
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Posted on Jan 02, 2017
SOURCE: heater problem
is your heater set on defrost this will cause your engine fan to run because it turns on the compressor for air conditioner this helps to extract moisture from your warm air defrost and the fan in the engine compartment helps keep it the engine cool from the extra load on the engine this is normal
Posted on Feb 17, 2009
car should be under warranty .. try having a new key made .if that dosent fix it. it's in the key lock maybe a wire loose .
Posted on Jan 21, 2009
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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