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What is wrong with your truck when it gets below 1000 rpm and starts to stutter then finally die?

Potential issues:

* Fuel supply problem: A fuel filter that is clogged or a fuel pump that is not working properly can cause a lack of fuel to reach the engine, leading to a loss of power and stalling.

* Spark plug issues: Worn or fouled spark plugs can cause the engine to misfire, which can also result in a loss of power and stalling.

* Air intake problems: A blocked air filter or a faulty mass air flow sensor can restrict airflow to the engine, causing it to run lean and eventually stall.

* Vacuum leaks: A leak in the vacuum system can cause the engine to run rough and stall.

* Idle control valve problems: A faulty idle control valve can cause the engine to stall when idling or when coming to a stop.

* Faulty sensors: A faulty oxygen sensor or throttle position sensor can send incorrect signals to the engine computer, causing it to run incorrectly and stall.

It is important to have the problem diagnosed by a qualified mechanic to determine the exact cause and ensure the correct repair is performed.