A defective exhaust gas recirculation (EGR) switching valve may cause an intermittent rough or unstable idle engine.
Problems for specific Hyundai models:
Car problem reports
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Most reported Hyundai problems
The manual transmission may become difficult to shift into third gear. This is common caused by worn synchronizers. Our technicians tell us that revised synchronizers are available to correct this concern.
Slipping of the automatic transmission and/or loss of forth gear may be caused by failure of the end clutch. Replacement of the failed clutch will be necessary to correct this issue.
Excessive engine noise may be noted after a cold start. If the engine oil level is correct this type of noise is commonly caused by faulty timing chain tensioners. Our technicians tell us that revised chain tensioners are available to correct this issue.
The motorized seat belt may chatter or become jammed in its track and not operate properly; Hyundai issued a recall for 1990 - 1994 model years that should correct this concern.
The engine may be slow to warm up due to a stuck open thermostat. Replacement of the thermostat is required to correct this issue.
The coolant valve under the right side of the dash may develop a leak. This can easily be mistaken for a leaking heater core. Our technicians recommend careful diagnoses of coolant leaks in the area.
A hard starting issue may be a result of loss of fuel pressure due to a cracked in-tank fuel line. Our technicians recommend to carefully check the in-tank fuel line if the fuel system will not hold pressure after the ignition is turned off.
Water leaking into the trunk may be caused by incomplete sealing in the wheel wells. Any body seams inside the trunk should be inspected and sealed as necessary if water is found inside the trunk.
A hard start or rough idle when cold may be noted. Our technicians tell us a powertrain control module software update is available to correct this concern.
Due to several possible engine-related problems, the Check Engine Light may illuminate. If this occurs, reprogramming the computer that controls the engine should fix the problem.