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Autopapyrus · Geely Emgrand X7 2.4 CVVT (2024)
https://autopapyrus.com/guides/geely/emgrand-x7/ignition-coil-replacement/
Compiled automatically from service literature and owner experience. Specs are for the typical configuration — check them against your exact car before you start.

Geely Emgrand X7 2.4 CVVT (2024): Ignition Coil Replacement

The 2.4 CVVT uses an individual coil for each cylinder, mounted directly in the spark plug wells under the valve cover. Typical symptoms of a failing coil: rough running (misfire), fluctuating idle speed, and a lit Check Engine light with misfire codes (P0301-P0304). The job is done on a cold engine and needs no special tools. Exact torque values for this variant are not documented in publicly available service materials, so the figures below are ranges typical for engines of this kind.

Difficulty: Easy Time: 30-60 minutes Steps: 13

Parts

2
№PartAlternatives
01 Individual ignition coil for 2.4 CVVT engine4 pcs for a full replacement (one per cylinder) Bosch, NGK, Denso
02 Spark plugsas needed

Tools

5
  • Screwdriver or 10 mm socket (for the coil mounting bolt)
  • extension with universal joint
  • spark plug socket with rubber retainer (if you will be checking the spark plugs)
  • torque wrench
  • dielectric grease for electrical contacts

Step by step

13 steps
  1. Turn off the engine and let it cool down. Disconnect the negative battery terminal and wait 3-5 minutes.
  2. Remove the decorative plastic engine cover if one is installed. It is usually held by clips or a few bolts.
  3. Determine which coils are faulty. If you have a scan tool, read the trouble code: P0301 is cylinder 1, P0302 is cylinder 2, and so on. Without a scan tool, you can swap two coils with each other: if the misfire moves to the other cylinder, the coil is at fault.
  4. Blow out or wipe the area around the coils with compressed air or a dry rag so that debris does not fall into the spark plug wells.
  5. On each coil, press the connector lock and disconnect the electrical connector. Do not pull on the wires.
  6. Remove the coil mounting bolt (or nut) and carefully pull the coil upward with a slight twisting motion. If the coil is stuck to the spark plug, do not use a screwdriver as a pry bar, to avoid cracking the insulator.
  7. Inspect the rubber boot of the coil and the spark plug well. Oil in the well means the valve cover gasket or the spark plug well seals need to be replaced. Otherwise the new coil will soon fail.
  8. It is advisable to check the condition of the spark plugs: carbon buildup, a melted electrode, or an incorrect gap. If the plugs have more than 30,000-40,000 km (about 19,000-25,000 miles) on them, it is better to replace them together with the coils. Tighten the spark plugs with a torque wrench; the torque is usually 20-30 N·m (15-22 lb-ft) (exact value per the manufacturer's specification). Do not overtighten.
  9. Apply a thin layer of dielectric grease to the inside of the rubber boot of the new coil. This makes installation easier and protects against electrical breakdown.
  10. Seat the new coil all the way onto the spark plug and align the mounting hole. Tighten the bolt to a low torque, approximately 8-12 N·m (6-9 lb-ft) (do not overtighten, the coil flange is plastic).
  11. Connect the connector until it clicks and make sure the lock has engaged.
  12. Install the engine cover, reconnect the battery terminal, start the engine, and let it idle for 2-3 minutes. The idle should be smooth with no vibration.
  13. If the Check Engine light stays on, clear the codes with a scan tool and check whether they return after a short drive.

Common mistakes and warnings

  • Do all work with the engine off and the battery disconnected
  • Do not remove coils while the engine is running, because the high voltage is dangerous
  • Do not replace just one coil if the others have high mileage: with general wear, the second and third often fail soon after the first
  • Do not buy the cheapest no-name coils, as they often cause misfires after just a few thousand kilometers
  • If misfires persist after replacement, the cause may be the spark plugs, fuel injectors, or engine compression, and you should take the car to a repair shop