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Replacing spark plugs on D4 engine

Replacing spark plugs on D4 engine 1
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Replacement of spark plugs on D-4

Much has been written about the advantages and disadvantages of engines with direct fuel injection. I want to talk about the simplest procedure at first glance – replacing spark plugs on a 3 S engine – FSE (D -4).

In order to get to the spark plugs, it is necessary to remove part of the intake manifold with the throttle body. When dismantling the collector, one must be very careful not to drop the accidentally shifted coke into the second part of the collector. As a rule, there is always plenty of coke deposits there. Then remove the coils and remove the spark plugs. Everything is very simple. But then you need a vacuum cleaner to remove soot. If this is not done, then the shifted soot pieces fall off and fall into the combustion chamber. All this can result in a strong knock and unpleasant explanations with the client when the engine is running..

After removing the coke and replacing the spark plugs, you can collect everything in place. The procedure takes about an hour and is not complicated at all..

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Vladimir Bekrenev, Khabarovsk

Toyota gasoline engines
3S-FE3S-FSE (D-4) 1996-2003

Diagnostics. Repairs. Maintenance.

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