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What would cause the fuel injector intake on 1998 Intrigue to explode when key is turned to on position?

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βˆ™ 2006-11-25 23:50:10

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First I'm assuming that when you say the key is in the "on" position that you mean the car is running or trying to start it. I also must assume you mean you hear a loud bang when its running or your trying to start it. (Lots of assumptions, because you description is weak). order for the fuel to ignite in the intake side of the engine one of two conditions must intake valve must be in the open position when the spark plug fires during the compression stroke (remember there are four strokes in a 4 stroke engine; intake, compression, power and exhaust). The first way this can happen is if the engine being out of time, and hence needing to be re-timed during a standard tune up, the second way this can occur is if an intake valve is stuck open or is completely blown. A blown valve never seats properly allowing the spark to ignite fuel before it makes it to the cylinder. On older vehicles with carbuerators , when this happend , flames would shoot out of the top of the carbureator...pretty impressive show. I suppose with todays cars the cars computer designates the firing and timing of the spark plugs so that could be the cause here as well.

2006-11-25 23:50:10
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Q: What would cause the fuel injector intake on 1998 Intrigue to explode when key is turned to on position?
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