I have a Delta 88 and its located about 18 inches in front of the rear tire on the driver side, its right under the second door of the driver side.
18 US Gallons.
The firing order for a 1989 Oldsmobile Delta 88 3.8L V6 is: 1-6-5-4-3-2 The #1 cylinder is located in the RIGHT FRONT.
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3.8 liter, v-6 front wheel drive.
under the coil packs which are located at the rear of the motor on top
Move the tensioner to release belt (use bolt in center of pulley and move with socket) Then simply remove bolts from block. Reverse to put on new one.
The 1989 Oldsmobile EGR valve is located on the top of the engine, near the back. It is quite simple to change.
It's going to be off the valve cover(s) one or the other. Plugged right into it.
The Crankshaft sensor is located behind the Harmonic Balancer on the front-passenger side
At the end of your air cleaner tube is a square box with 4 screws and a plug in. This is your mapp sensor
Assuming the oil level is ok but the oil light still comes on: The oil level sending unit or sensor needs to be replaced - not too expensive and relatively easy to replace,