20 Most Recent 1988 Oldsmobile Regency Questions & Answers

Depending on your model you will either need OBD 1 or obd2 scanner to clear engine code

most relays for this are under the hood in the fuse box it is usually on the pass side just on the wheel well could be on drivers side also but it should be there ,

TYPE : PO440

it is the automatic load leveler that pumps air into the back shocks to level the car so it rides better when there are lots of people or weight in it. it is in the frontof the car opposite the battery, just disconnect it. had the same problem on my 1990 olds 98.

check fuse bulbs or it might be your lever on the steering

it is located in front of engine down toward the bottom of engine

Check the wiring headed intot he transmission, if all good, remove the pan and check the interior,. of all good, then you can bet that you will need to replace the shifting solenoid in the tranny and you'll be good to go...
Best regards
Ck

Has to be gasket related where oil and water are close to each other,intake manifold or head gasket?

Some may not need any only use what you need to make the starter engage smoothly..