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you have a sensor problem.
How to change a timing chain in a 1998 Oldsmobile delta 88
under the throttle body next to the thermosat housing.
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
The 1989 Oldsmobile EGR valve is located on the top of the engine, near the back. It is quite simple to change.
Fuse 17 in a 1993 delta 88 Oldsmobile controls the air conditioner
The camshaft position sensor is located behind the water pump pulley. If looking directly at the pulley, it is at about the 10 O'clock position. TechJK ---------------------
You will need to change the Oil and filter, spark plugs, spark wires, fuel filter, air filter, oxygen sensor, thermostat, drain flush and refill the cooling system, and (if needed): change the breaks, rotate the tires, and change the transmission fluid.
disconnect the battery, then the wires from the starter. Then remove the bolts holding the starter to the engine.
on a 90 olds 88 royale your sensor sits inside the timing cover...will need to remove the harmonic balancer (need pulley for that) and remove two screws to take sensor out. replace all parts same way they came out and in same order. passenger side of engine in timing cover
78000 miles