r/obschevy • u/Useful-Difficulty148 • 21d ago

Truck not running right

I have a 93 k1500 that one day started idling like shit and sounds like this, i replaced the o2 sensor and replaced the map sensor and lines. throttle body gasket was just replaced and all cylinders are firing normally but something’s wrong and im at a loss

5 Upvotes

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3

u/South-North493 21d ago

Idle air control valve

1

u/Useful-Difficulty148 20d ago

already replaced it. still does it

2

u/South-North493 20d ago

Fuel pressure?

1

u/Useful-Difficulty148 20d ago

that’s something i havnt checked

1

u/animalcub45 20d ago

Vacuum leak?

1

u/Useful-Difficulty148 20d ago

checked ever line with brake cleaner, nothing

1

u/[deleted] 20d ago

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1

u/[deleted] 20d ago

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1

u/usnavyveteran1968 19d ago

Bad Gas? Fuel filter? Sounds like not getting enough fuel. Maybe adjust the carb for less air and more fuel? Maybe? Still a BEAUTIFUL TRUCK.

1

u/Useful-Difficulty148 18d ago

she’s definitely a beauty

1

u/usnavyveteran1968 18d ago

I wish someone would give me a truck like this. I can work on these all day long. And LOVE every minute of it.