How to rebuild oil pump ?

Yes and no, the engine is compatible. You will need to swap sensors and brackets, but the engine itself is the same. The trans is a different series though. Different computer and controls. Would not be a direct replacement.

burning oil change spark plugs and air filter

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The transmission is probably worn out
& in need of a rebuild

Their only good for a little over 100,000
if the fluid is seldom changed since new

series III 3800 engine, you have to get a harmonic balancer puller (can rent from autozone)
remove the balancer and you will be able to get at the crank position sensor.
while you are replacing, check the wires and make sure the insulation is in good shape and not showing bare wire.

Those are the heater line elbows. They are available aftermarket.

you can put the live wire from the battery directly to the pump connector. if you have the difficulty to select the right connector, you need to take out the pump assembly then see from inside.

First find the air filter. Follow air filter housing up towars motor. You should see a throttle cable. Your throtle sensor is right there.

Hello! It runs up from the backside of the motor into the fuel rail. The PSI is 48-55.


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Lubrication System

^ Oil Pressure - @ 1850 RPM 414 kPa (60 psi)

With this Piticular Engine The oil Pump Is the ONLY Problem I"ve found that They Are even Slightly Bad At and Not A HUGE Problem at all,Oil sending Unit May very well be the Culpret. Hope this Helps you Diagnose it Correctly.

You should add it to the power steering pump reservoir, which if you have the 3800 series II its behind the engine on the passenger side.