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Glow and new glory

Question : MY Land Rover TD4 runs roughly for about 20 minutes after startup in the morning. My mechanic blames it on the fuel injection system while the local authorized dealer blames it on the electronic control unit (ECU). Which ever is correct, it would be a costly affair to put right And I hope that your third opinion would help save me quite a few bucks.

Answer : FROM what you have described, it seems unlikely that either is correct, since your engine runs sweetly after it has warmed up. It seem very likely that one of your glow plugs have failed and that your vehicle engine is running on three cylinders until the engine has reached a temperature threshold when the remainder cylinder begins running. This is a common occurrence in diesel engines.

Glow plugs have finite lives, usually somewhere between 50,000 and 100,000km. They are cheap and easy to replace. Although they can be singly replaced, I would thoroughly recommend replacement as a set. Always use original components where possible.

 
   
 

Sooty spark plugs

Judging the air-fuel ratio

Spark plugs covered with oil

Are 'fancy' plugs good ?

Spark plug won't last

Misfiring spark plugs

Spark plugs poser

Soiled plugs, tired engine

Wrong spark plugs

 

Sump repairs won't last

Not too hot, not too cold

Get the spark right

Glow and new glory

Window into the ( car's ) soul

Clogged plugs

Plug cables

Up in smoke

 

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