Sonata FAQ
Fault phenomenon: when the vehicle starts, it is easy to stall in D gear and the gear shift is poor.
Key models: the probability of Beijing Hyundai Sonata eight automatic transmission models appearing after the accident is average.
Cause of failure: solenoid valve harness and pulse signal harness are faulty.
Test suggestion:
1, vehicle shift test, there is no problem in R gear, and the problem is confirmed when D gear is obvious.
2. Carry out a road test, and the vehicle cannot be upshifted after 3rd gear.
Second, it is difficult to start, lack of power, and accidental flameout during driving.
Fault symptoms: the vehicle is difficult to start, the power is insufficient, and the engine is unexpectedly turned off while driving.
Key models: The general probability of Beijing Hyundai Sonata Series 8 models over 200,000 kilometers will appear.
Cause of failure: The gasoline pump is aging and needs to be replaced.
Test suggestion:
1. Focus on inspection of vehicle fuel supply system, aging inspection of gasoline pump and aging judgment of gasoline supply system circuit.
Third, the vehicle remote control key is out of order.
Symptoms: The vehicle remote control key does not work.
Key models: Beijing Hyundai Sonata Eight Series models with a distance of more than 654.38+0.5 million kilometers generally appear.
Cause of failure: The signal failure of ETACM and control module led to the need to replace the EMATM control module.
Fourth, shut down after startup.
Fault symptom: The vehicle turns off after starting.
Key models: Beijing Hyundai Sonata Eight Series models have a high probability of more than 50,000 kilometers.
Cause of failure: The intake pressure sensor is faulty and needs to be replaced.
Test suggestion:
1. After starting, turn off the engine and check the power supply and gasoline supply system.
2. Focus on checking the intake pressure sensor.
Five, the vehicle water temperature is high, sometimes the speedometer is not allowed.
Fault phenomenon: the vehicle water temperature is high and the speedometer is not accurate.
Key models: Beijing Hyundai Sonata Eight Series models have a high probability of more than 20,000 kilometers.
Reason for failure:
1. The grounding point of the water temperature sensor is faulty and needs to be re-fastened.
If the thermostat fails, it needs to be replaced.
Test suggestion:
1, the vehicle water temperature is high, and the infrared temperature sensor is used to check whether the actual temperature of the water temperature pipe exceeds the normal value.
2. Check whether the vehicle fan works normally.
3. Check whether the resistance of the grounding point of the water temperature sensor is stable with a multimeter. Normal is 65-67 ohms.
Six, the vehicle idle speed is high, and the speed has not changed after turning on the air conditioner.
Fault symptoms: the vehicle is idling at a high speed, and the speed has not changed (above 900 rpm) after the air conditioner is turned on.
Key models: Beijing Hyundai Sonata eight full series models have a high probability of more than 60,000 kilometers.
Cause of failure: The air conditioning control signal line is connected with other signal lines, which is mostly caused by water ingress and may be waded.
Seven, the vehicle manual transmission model has a high idle speed.
Fault symptoms: vehicle idle speed is too high, manual transmission model.
Key models: Beijing Hyundai Sonata Eight Series manual models generally appear over 20,000 kilometers.
Cause of failure: The ignition coil needs to be replaced due to aging.
Test suggestion:
1, refueling test, safety road test.
2. Check the fuel and intake pressure system.
Eight, after the vehicle started, after a while, the problem recurred.
Fault symptoms: the vehicle may turn off after starting, and the problem appears repeatedly.
Key models: Beijing Hyundai Sonata Eight Series models have a high probability of exceeding 80,000 kilometers.
Cause of failure: The crankshaft position sensor is faulty and needs to be replaced.
Test suggestion:
1, the flameout may be caused by the vehicle mixer being too thin, so check the gasoline pump and related pipelines.
2. Check the crankshaft position sensor in the engine compartment, tighten the sensor plug, and measure whether the flameout time is prolonged. If it improves after fastening, it may be that the sensor is aging and needs to be replaced.
3. In addition, water may enter the sensor plug, which needs attention.
Nine, the engine fault light is on, and the refueling disappears.
Fault phenomenon: the fault light of the vehicle idle engine is on, the accelerator pedal disappears, and it reappears after being released.
Key models: Beijing Hyundai Sonata eight full series models have a high probability of more than 40,000 kilometers.
Cause of failure: The throttle position sensor is faulty and needs to be replaced.
Test suggestion:
1. Check the vehicle throttle circuit and control system.
2. Check the change of the accelerator pedal and suggest a road test.
Ten, the vehicle power is insufficient, and the exhaust emission is slightly blue.
Fault symptoms: the vehicle has insufficient power and the exhaust gas is slightly blue.
Key models: The general probability of Beijing Hyundai Sonata Series 8 models over 200,000 kilometers will appear.
Cause of failure: the piston ring is aging and needs to be replaced.
Eleven, the vehicle suddenly stalled, and then can't start.
Fault symptom: the vehicle stops suddenly and cannot be started.
Key models: Beijing Hyundai Sonata eight full series models have a small probability of exceeding1.2000 km.
Cause of failure: relay harness aging signal failure, which may be caused by driver's driving touch.
Test suggestion:
1. Check the signal wire of vehicle relay and retighten it.
2. Check the vehicle power system.
12. The tailgate light of the vehicle is always on, causing the vehicle to have no electricity, and the battery can't be started.
Fault symptom: the vehicle stops suddenly and cannot be started.
Key models: Beijing Hyundai Sonata eight full series models have a small probability of more than 60,000 kilometers.
Cause of failure: The fuse of vehicle indoor lighting is blown and needs to be replaced.
Elantra (annual sales of 65438+7642728 vehicles in 2005)
Frequently asked questions:
I. Abnormal sound of the center console
Q: Some Elantra car owners reported that abnormal noise sometimes appeared on the right side of the center console, especially when driving with the windows closed. They are worried about whether any accessories are loose.
A: If the abnormal noise is not obvious, it is recommended not to disassemble the center console, but if the abnormal noise is obvious, the above procedure is still needed. Usually, we will find that the lining on the lower sides of the front windshield is loose, or the buckle inside is broken. After maintenance, the fault can be solved well.
Second, the air intake of the inner door handle.
Q: Some car owners will find that there will be an air inlet at the inner door handle of Elantra. At the same time, some car owners reported that when driving at high speed, Elantra's right window would make a sound similar to rain. Is this a problem with the body sealing strip?
A: These two problems are actually very easy to solve. When driving at high speed, the outside air passes through the door handle, forming an air vortex inside the handle and coming out of the door handle. We removed the door trim and blocked the air intake. Without treatment, there are not many problems, and the air intake is very small.
As for the abnormal sound of the window at high speed, it is likely that the door was hit and repaired, or that the window sealing strip was stuck and blown by the wind. In addition, the owner can also adjust the wind direction and thrust of the nearby vents to see if the sound disappears. If it disappears, it may be that foreign objects have entered the air duct.
Third, the automatic gear Yuet suddenly turned off.
Q: Some car owners said that their automatic Elantra accidentally turned off during driving, and sometimes it takes two or three times to start again after turning off.
There are generally two reasons for this situation in automatic transmissions. First, the dirty part of the idle speed control valve leads to unstable idle speed; On the other hand, because the data version of ignition time and fuel injection time stored in the driving computer E C U is relatively low, in some cases, the idle speed of the engine will be unstable after high-speed operation, resulting in engine flameout.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.