2. Disconnect the high voltage wires from the spark plugs on one side and from the ignition coils on the other.
Attention: when removing and installing wires, you must hold only the rubber end of the wire, and not the wire itself. Improper handling of high voltage wires can cause internal wire breaks.
3. Using an ohmmeter, check the resistance of all high voltage spark plug wires. If the measured resistance exceeds the maximum allowable value, then replace the spark plug wire.
Rated resistance:
- Engine 2.7L:
- cylinder No. 1 - 4.39-6.59 kOhm
- cylinder No. 2 - 2.28-3.43 kOhm
- cylinder No. 3 - 3.49-5.24 kOhm
- cylinder No. 4 - 1.9-2.86 kOhm
- cylinder No. 5 - 3.25-4.87 kOhm
- cylinder No. 6 - 1.3-1.95 kOhm
- Limit value (per meter of wire) - 10 kOhm
Attention: make measurements from both ends of the wire. Do not pierce high voltage wires with a needle probe.
Note:
- If the resistance of the high voltage wire exceeds approximately 10 kOhm per 1 m of wire length, it is recommended to replace the wire.
- Installing wires with increased resistance will make it difficult to start the engine in high humidity.
4. Check the condition of the contacts of the spark plugs and the ignition coil (no damage, oxidation, contamination, etc.)
5. Install and connect high voltage wires.
Attention: improper laying of high voltage spark plug wires leads to EMF induction in adjacent wires, which can cause misfiring, jerking and twitching of the car at high speeds.
Engines 2.0 l / 2.4 l.
Engine 2.7 l.