Hello John,
I understand your concern. Engine stalling at low RPMs can be a sign of various problems such as fuel system issues, vacuum leaks or a faulty idle air control valve. It’s hard to pinpoint the exact cause without seeing the truck, but here’s my advice:
First, check your fuel filters and pump. If they are clogged or malfunctioning, they can cause the engine to starve at low RPMs.
Next, inspect for any vacuum leaks. They can also cause the engine to stall by disrupting the air-fuel mixture.
Lastly, check the idle air control valve. This component controls the engine idle speed and if it’s faulty, it could lead to stalling.
Remember, these are just some starting points. If the problem persists, please seek professional help.
Safe travels, John!
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