Common questions

Why are my injectors smoking?

Why are my injectors smoking?

A Faulty Fuel Injector Without getting too technical, the injectors that deliver the fuel to the combustion chamber can leak or become stuck in the open position. This means too much fuel in the engine that needs to burn off and be expelled. This is seen as gray or white smoke from the exhaust.

Can a bad fuel injector cause a Chevy Silverado to blow?

Less Fuel Mileage – Your Silverado’s engine management computer is constantly adjusting the air/fuel ratio and timing to get optimal combustion. When the fuel injectors aren’t working properly it can’t do that and fuel mileage suffers. Knock/Detonation – Detonation can cause your Silverado’s engine to blow.

Can a bad spark plug cause a Chevy Silverado to idle?

Idle Issues – With a fuel injector that is not properly atomizing fuel properly, your Silverado is going to have a difficult time idling. It’ll feel almost exactly the same as if it had a bad spark plug. That is to say there will be a sudden drop in idle speed.

Why does my Duramax engine have white smoke at idle?

A common issue with the GM 6.6L LB7 Duramax engine is white smoke at idle. Worn and damaged injectors are often the cause however there are other causes and considerations that should be looked at prior to injector replacement. 1. Remove IGN 1 relay. 2.

What are the symptoms of a bad fuel injector?

1 Thin Oil – When a fuel injector leaks, all of that fuel is not getting burned in the combustion chamber. 2 The Smell of Fuel – When your engine is getting too much fuel, your Silverado can’t burn it all. 3 Engine Locks Up – Once too much gas gets in the oil, the motor will lock up. …

Less Fuel Mileage – Your Silverado’s engine management computer is constantly adjusting the air/fuel ratio and timing to get optimal combustion. When the fuel injectors aren’t working properly it can’t do that and fuel mileage suffers. Knock/Detonation – Detonation can cause your Silverado’s engine to blow.

Idle Issues – With a fuel injector that is not properly atomizing fuel properly, your Silverado is going to have a difficult time idling. It’ll feel almost exactly the same as if it had a bad spark plug. That is to say there will be a sudden drop in idle speed.

What causes white smoke in a GM 6.6L Duramax engine?

A common issue with the GM 6.6L LB7 Duramax engine is white smoke at idle. Worn and damaged injectors are often the cause however there are other causes and considerations that should be looked at prior to injector replacement. INJECTORS STUCK OPEN OR WITH EXCESSIVELY LEAKING NOZZLES DIANOSIS 1.

Why was the 9th injector introduced in the Duramax LML?

The Duramax LML introduced the “9th injector” system in order to supply fuel to the DPF during regeneration. This is opposed to the previous generation’s (LML) late/post injection technique.

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Ruth Doyle