How to repair engine jerking during driving

How to repair engine jerking during driving.

Auto repair and Study guide Give’s you some Guidelines or tips that problem occurs from Hyundai cars hoping that this post help you.

Model: Hyundai Elantra(HD)

Year Model: 2010

Fuel :Gasoline

Displacement: 1600cc

1) Condition

• Engine jerking during driving specially in high speed.
• Engine suddenly loose power after jerking.

2) Study Guide

• Due to the Ignition coil Extension wire.

3) Diagnosis

• Scan tool check
  = No trouble code
• Analyze the engine performance visually
• Check for terminal wire loose
• Ignition coil #1 socket terminal pin poor contact.

4) Auto Repair

• Check and Repair terminal.

Engine Electrical System
 

ON-VEHICLE INSPECTION

SPARK TEST

1.Remove the engine cover(A).

2.Remove the engine cover bracket(A) and the ignition coil(B).

3.Remove the fuel pump relay(A) from the fuse box for fuel not to be injected while checking.

4.Using a spark plug socket, remove the spark plug.

5.Install the spark plug to the ignition coil. (1.6 CVVT)

6.Ground the spark plug to the engine.

7.Check if spark occurs while engine is being cranked.

Do not crank engine for more then 5~10 seonds.

8.Inspect all the spark plugs.

9.Using a spark plug socket, install the spark plug.

10.Install the ignition coil.

 

11.Install the engine cocer.

 

INSPECT SPARK PLUG

1.Study Guide Remove the engine cover bracket(A) and the ignition coil(B) with bolt.

 

When removing the ignition coil connector, pull the lock pin(A) and push the clip(B).

2.Using a spark plug socket, remove the spark plug.

Be careful that no contaminates enter through the spark plug holes.

3.Inspect the electrodes (A) and ceramic insulator (B).

AUTO REPAIR INSPECT IGNITION COIL

1.Measure the primary coil resistance between terminals (+) and (-).

 

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