Where's the oil pump located? - 2004 Chevrolet Chevrolet Silverado 1500 Z71

Oil pumps are located inside your oil pan. You'll have to remove the oil pan to see it.
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The oil pump should be located in the vehicles oil pan, when you take the pan off there should be a screen and tube that leads up to the pump

oil pump is driven by the camshaft gear by an oil pump drive shaft located under the throttle body/intake plenum. the oil pump is located inside the oil pan/engine block.

oil pump is located in the oil pan.

the oil pump is located inside the oil pan and has to be removed to get to the oil pump.

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Exploded view of a common oil pump mounting-4.3L engine shown, it is the bottom of your engine, located under your oil pan.

Exploded view of a common oil pump mounting-2.2L engine shown, located under your oil pan.

Hello
Welcome!
Oil pump is located on the oil pan.
Parts needed,,,oil,,,, oil filter,,,, oil pan gasket,,, oil pump,,,, oil pump pickup tube..
time to do this,, about 3 hours
Instructions,
Raise van place on 2 jack stands
drain oil remove oil filter fill new filter install.
remove bolts from oil pan,
remove oil pan..
remove 2 bolts that hold oil pump and tube.

install new pump and tube tork bolts to 45 fp
replace oil pan gasket and install oil pan
tork pan bolts to 35" pounds
install drain plug
fill with oil
start and check for leaks

let me know if i can help more

oil pump is in the oil pan and if you have no or low oil pressure replace pump before doing anything with knock sensor. knock sensor is more or less a microphone and listens for spark knock but will set codes for any knocking or tapping noise which is commonly heard if oil pump is malfunctioning

oil pump in engine is like heart in human body ! do not run engine with out fix it .ck the oil pan,oil screen for mud and tar, oil filter for clogs, the oil pump is located in the L side of engine behand the timing cover next to the water pump

oil pump is on front of engine you ewill need to pull crank pulley and fan shroud.