Trying to locate oil pump - Malibu Chevrolet Cars & Trucks

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

Locate the oil Filter on the engine. Inside the engine behind oil filter is the oil pump. Now you know where it is, what do you intend to try to do to the oil 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.

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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

4.3L Engine To Remove:

1. Remove or disconnect the following:
   • Engine oil pan
   • The oil pump bolt
     
     
   • The oil pump
   • Inspect the pins (oil pump locator) for damage
     
     
     1. Replace the pins if required
2. Clean and inspect all parts.

To Install:

1. Inspect for properly installed pins (oil pump locator). Note: Do not reuse the oil pump driveshaft retainer. During assembly, install a new oil pump driveshaft retainer.
   
2. Install or connect the following:
   • The oil pump
     1. Position the oil pump onto the pins
   • The oil pump bolt attaching the oil pump to the rear crankshaft bearing cap
     1. Tighten the oil pump bolt, Torque to: 66 lb ft (90 Nm)
   • The oil pan

try an oil pressure switch , then may be oil pump

More than likely (and we will hope) it is the oil sending unit. In comparison it is a very cheap and quick fix to replacing the oil pump. Auto Zone has a pretty good componet location section that has tips for replacement if you cant find the sending unit or the oil pump. Try that first it may save you a lot of work.

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