How Insufficient Air Flow From Floor – Air Duct

Insufficient Air Flow from Floor – Air Duct

Model: Santa Fe (SM)

Model Year: 2004

Fuel: Gasoline

Displacement: 2000cc

1) Study Guide and Condition:

1. Air flow from floor duct at passenger side is not enough.
2. When the blower motor operates, there is a difference in airflow between driver side and passenger side.Study Guide

2) Study Guide and Cause

• Floor air duct has been blocked due to the abnormal installation of floor mat

3) Diagnosis and Study Guide

1. The duck opening has been blocked by the mat under the passenger side.

4) Study Guide

1. Re install the floor mat at the passenger side.
2. more

Insufficient Air Flow From Floor – Air Duct

Insufficient Air Flow from Floor – Air Duct

Model: Santa Fe (SM)

Model Year: 2004

Fuel: Gasoline

Displacement: 2000cc

1) Study Guide and Condition:

1. Air flow from floor duct at passenger side is not enough.
2. When the blower motor operates, there is a difference in airflow between driver side and passenger side.Study Guide

2) Study Guide and Cause

• Floor air duct has been blocked due to the abnormal installation of floor mat

3) Diagnosis and Study Guide

1. The duck opening has been blocked by the mat under the passenger side.

4) Study Guide

1. Re install the floor mat at the passenger side.
2. more

How to Check Engine is Not Turned “OFF” in Hyundai Santa Fe

How to Check Engine is not turned “OFF” in Hyundai Santa Fe.

 

This Auto Repair and Study Guide give you some basic trouble of Engine and Electrical

Model: Santa Fe(SM)

Year Model": 2001

Displacement: 200cc

Fuel: Diesel

Study Guide : Engine is not turned “OFF”

1) Study Guide COndition

1. When the ignition key is turned off the engine does not stop.
2. Fuel consumption is High.

2) Auto Repair and Cause

1. Scan tool check
   = No Trouble Code
2. Inspect the injector using injector quantity comparison mode in GDS
   = Low injector quantity comparison value of #2 cylinder.
3. Inspect after removing the injector.
   =The injector hole has been expanded.
   =After replacing the injectors, the engine system operates normally .
   =The deformed injector nuzzle may make the engine impossible to turn “OFF”

4) Auto Repair

• Replace the injector assembly

More Info and reading

How to repair rear suspension noise of Hyundai Sante Fe

How to repair rear suspension noise of Hyundai Santa Fe

Study Model: Hyundai Santa Fe

Study Year Model: 2003

Study Fuel: Gasoline

Study Displacement: 2000cc

1) Study Condition:

• Study Abnormal noise from rear suspension during driving on a speed bump.

2)Study Cause

1. Fuel tank has been installed in the backward.

3) Study Diagnosis

1. Check whether the muffler assembly is interfered or not – Trouble not found.
2. Check the rear insulator and the ,mounting bolt – Trouble not found
3. Check the stabilizer bar and the fuel tank.
   - Interference between the stabilizer bar and the fuel tank.
4. Check the fuel tank – The tank has been installed in the backward.

4) Study Repair Parts

= Re-install the fuel tank assembly

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How to repair in operative back-up lamp.

How to repair in operative back-up lamp?

Sorry for 3 days not to give some information about some trouble i have encountered due to my training in Dubai with 3 days.ok what’s going now?

Model: Hyundai Santa Fe

Year Model: 2004

Fuel: Gasoline

Displacement: 2000cc

Subject: In operative back up lamp – water sensor

1) Condition

Rear back-up lamp doesn’t operate when the shift lever is in “R” position.

2) Cause

1. Malfunction of the water separator sensor at fuel filter.

3) Diagnosis

1. While cranking the engine in the morning ,the fuse(10A0 for back-up lamp/water separator sensor is opened intermittently.
   - The symptom is not happened when restarting after driving.
2. After replacing the fuse (10A), the water separator indicator light illuminates dimly in the key ‘ON’ position.
3. If the gnition key is switch “ON” and “OFF” for ten times, the fuse is opened again.
4. Check the water separator sensor.
   = The sensor resistance is lower than the normal.
5. Malfunction of the water separator sensor.
   = After replacing the water separator sensor, the problem is solved.
   (Fuel water separator indicator light  in cluster instrument  illuminates dimly)
   (Abnormal water separator sensor)

4) Parts Replace

• Water separator sensor.

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What is the Problem if Engine Hard to Start in Morning

What is the Problem if Engine Hard to Start in Morning.?
How to check of this problem?

Model: Hyundai Sonata (FL).

Year Model: 2010

Fuel: Gasoline

Displacement: 2400cc

Subject: Engine Hard starting especially in the morning.

1) Condition

1. Engine hard starting in morning, at the same time after driving the car and park after a few minute try to start it cannot start immediately.

2) Cause

1. immobilizer key.

3) Diagnosis

1. Scan tool check
   Trouble Code.
   a) P1693 – Immobilizer Transponder.
   
   Almost all Hyundai model are built in with anti theft gadget that what we call immobilizer system. consist of ECM, the SMARTRA3 and the ignition keys with built in transponder.
      The ECM carries out the check of ignition key by especial encryption algorithm with SMARTRA3 and transponder. the encryption algorithm (between ECM and SMARTRA3) is used one offered from Bosch. the encryption algorithm (between ECM and Transponder) is Hitag2 type witch is high level.when ignition ON, the ECM executes the key authentication. The engine can be started in case of the success in SMARTRA3 and key Authentication.
      The Key teaching procedure start with ECM request of pin from scanner. The ‘virgin’ ECM stores the pin and the key learning can be started. the '”learnt” ECM compares the PIN from tester with the vehicle password in transponder. If the data is correct, the learning can be started. Scanner request the learning of the first key, the SMARTRA3 is registered at first and then first key is registered by ECM. If the SMARTRA3 status is learnt and pin number is different , the SMARTRA3 will return the incorrect pin data to the ECM. in this case, the ECM can’t execute the key learning process.
2. Observation the key indicator from control takes a second to appear this abnormal. the normal is takes 3 second only.
3. Check and reprogram with new key.
4. The indicator normalize = Ok

4) Replace Parts

• Immobilizer Key

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How to Check the Automatic Transmission Hold in 3rd Gear

How to Check the Automatic Transmission Hold in 3rd Gear
Model: Hyundai Santa Fe
Year Model: 2004
Fuel: Diesel
Displacement: 2000cc
Subject: ATM 3rd Gear Hold – Solenoid Valve
1) Condition

1. Automatic transaxle 3rd gear hold during driving.
2. Excessive shock shifting when shifting into the "’R’ position.

2) Cause

1. Solenoid valve connector(# 10 pins) is not fitted completely.

3) Diagnosis

1. Scan tool check
   = Diagnostic trouble code
   1) P0703 = LR Solenoid valve short/ open circuit(LR-low & reverse)
   2) P0743 = DCC Solenoid valve short/open circuit (DCC – Damper clutch control.
2. Inspect the solenoid valve power supply wiring(ATM: Automatic transmission).
   = The solenoid valve connector pin has not been fitted completely.
3. # 10 terminal does not supply power voltage to the solenoid valve.

4) Repair Guides

1. Repair the solenoid valve connector.

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How to fix the inaccurate water temperature gauge

How to fix the inaccurate water temperature gauge.
Model: Hyundai Santa Fe
Year Model: 2002
Fuel: Diesel
Displacement: 2000cc
1) Condition

1. Coolant temperature gauge indicates different level whenever the ignition key is turned ‘ON’ and ‘OFF’
   =The gauge indicates lower level than normal.

2) Cause

1. Malfunction of engine coolant temperature sensor.\

3) Diagnosis

1. Check the coolant temperature sensor ground condition and the circuit
   =Trouble not found.
2. Check the coolant temperature sensor output voltage.
   =Turn the key ‘ON’ and ‘OFF’ repeatedly.
   signal voltage shows 1.2 volts(if normal,2.5 voltage).
3. After replacing the coolant temperature sensor, the gauge operates normally.

4) Repair Guides

• Replace the coolant temperature sensor.

Please leave a comments or Email me if you need help

What is the cause of engine rough idling and how to check it.

The is one of engine problem occurs on your car.

What is the cause of engine rough idling and how to check it?

Model : Hyundai Santa Fe (SM)

Year Model : 2002

Fuel : Gasoline

Displacement: 2000cc

Subject : Engine rough idling – Injector.

1) Condition

1. Engine RPM becomes rough and vibration occurs at idle speed.
2. Poor engine acceleration during driving.

2) Cause

1. Malfunction of injector ( Cylinder # 3).

3) Diagnosis

1. Scan tool check
   = No diagnosis trouble code.
2. Check the high and low pressure line – Normal condition.
3. Check the amount of returned injection fuel.
   = Lots of returned fuel in the line # 3 injector.
   = The returned amount of fuel in the # 3 injector is much more than other cylinder.
   = Normal amount of returned fuel for 3 minutes in warm engine is approximately 18~20 cc.

4) Repair Guides

1. Replace the # 3 injector assembly.

more study

How to Fixed Engine Hard Starting?

These is the case I encountered today.the problem occurs due to pressure control valve clogging, with foreign materials.

How to Fixed Engine Hard Starting?

Model: Hyundai Santa Fe (SM)

Year Model: 2004

Displacement: 2000CC

Fuel: Diesel 

T/A: Auto

Subject: Engine Hard Starting – Pressure Control Valve.

1) Condition

1. Hard starting of CRDI diesel engine.

2) Cause.

1. Foreign material in the fuel pressure control valve.

3) Diagnosis

1. Scan tool check.
   = Diagnostic Trouble Code (No Trouble Code)
   = Inspect current data: Rail pressure is abnormal.
2. Inspect high pressure pump.
   = Separate the high pressure pipe that connects with common rail.
   = Detach the rail pressure from common rail.
   = Connect the separated high pressure pipe to rail pressure sensor.
   = Crank engine and check the fuel pressure: 1480 bar (Normal)
   
   Standard Value: 1500 bar
   
3. Inspect the injector.
   = Detach the high pressure pipe that is connected from common rail to injector.
   = Inspect the vacuum leakage (#1~#4) using hand vacuum pump: Normal.
4. Inspect the rail pressure control valve.
   = Remove the rail pressure control valve from common rail
   = Inspect the vacuum leakage using hand vacuum pump.
   = Foreign material is found inside the common rail.

4) Repair Guides

1. Replace the fuel pressure control valve.

more study

How to Check if Sometimes Engine Hard Starting?

This case probably intermittent engine hard starting.

How to Check if Sometimes Engine Hard Starting?

Model: Hyundai Santa Fe (SM)

Year Model: 2004

Fuel: Diesel

Displacement: 2000cc

T/A : Auto

Subject: Intermittent Hard Starting = Fuel Filter

1) Condition:

1. Intermittent hard starting and hesitation occur when initial engine starting
2. Starting is possible after cranking for 2~3 times.
3. After starting, severe engine hesitation happens..

2) Cause:

1. Faulty check valve in the fuel filter.

3) Diagnosis

1. Scan tool check
   = No trouble found
2. Current data shows abnormal fuel pressure during starting.
3. Check the high pressure line – lower than normal pressure.
   
   Specification : Max 1,350~1,500 bar
   
4. Check the low pressure line – Normal
   = Tips for pressure test : Connect the rail pressure sensor with fuel line from high pressure pump.
5. Check the high pressure pump = Normal.
6. Check the pressure regulator in the fuel filter
   = The valve is stuck.
   = After replacing the fuel filter ( pressure regulator ), the engine operating normally.
7. The arrow high sign
   = Green: fuel return line
   =  Red : High pressure pump line.
   = Blue : Low pressure pump line.

4) Repair Guides

1. Replace the fuel filter assembly including check valve.

more study

How To Diagnose The Intermittent RPM Rising?

This trouble case occurs intermittently during driving, As a technician you have to give attention by road testing to probe the problem at the same time you got an idea where you begin to trouble shoot the problem.
Model: Hyundai Santa Fe (SM)
Year Model: 2002
Fuel: Gasoline
T/A : Auto
Displacement: 2000cc
N Code : Rough Idling
C Code: Poor Contact & Short Open Circuit
Subject: Intermittent RPM Rising – APS (Acceleration Position Sensor)
1) Condition:

1. Intermittently the engine RPM increases ( 750>1,300RPM) While Braking.

2) Cause:

1. APS (Acceleration Position Sensor) malfunction.

3) Diagnosis:

1. The APS signal is 899 mV at idle.
   
   Specification 0.6~0.75 Volt.
   
2. Check the Power  which is inputted to APS sensor, ground line,signal power – normal.
   Specification
   - Sensor power: 4.5~5.5 volt(Disconnect the connector)
   - Sensor ground: 0 volt
   - Sensor signal: idling 0.6~.75 volt, Full throttle 3.6~4.6 volt
   
3. Inspect the terminal of APS connector – Normal.
   
4. Supply power source (0.6v) to APS signal line using simulation mode in GDS
   = Normal operation of engine.
   = Replace the APS.
   = After replacing the APS, the sensor data and all system operate normally.

4) Repair Guide

• Replace the Acceleration Position Sensor.

more Study & more trouble