Bison
Active Member
Hi all,
2003 Range Rover L322 4.4L Vogue LPG/Petrol
I have just changed the spark plugs on my RR L322. Now I have a misfire and the engine symbol comes on intermittently whilst driving. Misfire can be slight or major juddering of the car. Car ran perfectly before the spark plug change.
The spark plugs are the same as the ones removed but new! I simply removed the access cover. Undid the coil nuts and removed the coils to one side. Removed spark plugs. Gave everything a wipe over with a clean rag. Fitted new spark plugs. Refitted the coils and refitted the cover.
On the test drive the misfire and engine light occurred.
I decided to carry out the change again. I did exactly the same thing again only removed and refitted the new spark plugs.
I also made sure this time that I firmly seated the spark plug to coil rubber extension connection.
On the second test drive the misfire and engine light occurred again.
Is there anything I am obviously missing?
Thanks in advance for your help.
Bison :boom:
2003 Range Rover L322 4.4L Vogue LPG/Petrol
I have just changed the spark plugs on my RR L322. Now I have a misfire and the engine symbol comes on intermittently whilst driving. Misfire can be slight or major juddering of the car. Car ran perfectly before the spark plug change.
The spark plugs are the same as the ones removed but new! I simply removed the access cover. Undid the coil nuts and removed the coils to one side. Removed spark plugs. Gave everything a wipe over with a clean rag. Fitted new spark plugs. Refitted the coils and refitted the cover.
On the test drive the misfire and engine light occurred.
I decided to carry out the change again. I did exactly the same thing again only removed and refitted the new spark plugs.
I also made sure this time that I firmly seated the spark plug to coil rubber extension connection.
On the second test drive the misfire and engine light occurred again.
Is there anything I am obviously missing?
Thanks in advance for your help.
Bison :boom: