1988 Oldsmobile Ninety Eight - Answered Questions & Fixed issues

maf/vaf sensor throttle position sensor idle speed sensor take it to an accredited service center to have it properly diagnosed

What is the status of the timing belt (or chain) on the vehicle? Was it ever replaced by a competent mechanic?

This is an old diagram I found, hope the wire colors are correct?The dark blue wire carries voltage to position switch for back up lamps. When in reverse the lite green wire carries voltage to back up lamps and the black wire is ground.

Broken vacuum line from the engine to the vacuum ball or controller. Could be the vacuum motor also.

The system in your car is all vacuum controlled so the first this you need to do is locate the main vacuum source under the hood. It is normally located on the passenger side near the firewall. You may see a plastic ball shaped canister or it could be square. Make sure that device has vacuum going to it from the engine

First check all the linkage in the shifter lever parts, Something in the steering column may be blocking it, or a a linkage part bent under the car. Otherwise it is inside the transmision and would be a big job to fix it.

If your asking about the radio channels and radio clock, there is a wire that is always hot that has to be connected to the radio's always alive wire. If it is not hooked to the wire that is always hot, (like hooked to an ignition wire) then it will not be hot and every time the ignition is turned off, you will lose the clock time and channels memory. If you have a test light, check the wires at the radio (with the key off) and see which one is hot. If none are hot, then you have a blown fuse or wire broken.

A car that old will be short of regular spares. All brake systems have a master cylinder for the brakes and the difference in some models is that instead of a vacuum brake booster to assist with the braking they have hydraulic assistance. Basically from what you describe unless you are a vehicle restorer then I would advise steering clear on this one

If it is a manule trans then you need to shift it sooner. And for the reason it will not go into third gear is the gear could be gone or the saycronizer is bad. You will have to put in a new trans or get this one fixed in order to get third gear.

some of the olds eighty eights have locking hubcaps. so call dealer to find out how to remove. hope this helps! good-day !

If you replaced only the coils, and not the module beneath, you wasted your time. Most times the module is what causes this.

There are lots of nicknames for those lights, on any car!! For our purpose here we will just call it a side courtesy lamp. To access the bulb try one of these: Look at the edges of the lens for small groove or slot. If it has them use a small screwdriver to gently pry it out of the fixture. OR The entire fixture may POP out of the pillar. OR Remove the interior trim piece on the backside of the pillar to gain access to the bulb. Hope this helps.

Hi, Follow the top rad hose and at the end of that is the thermostat. Undo the two bolts and there it is.But first you will have to drain some fluid out to make it easier to access. Good luck.

Make sure that you have fire and fuel. You may want to spray some ether into the air intake. If it doesn't want to start and it has fire, you may want to consider the timing chain.

Locate the distributor the top has 4 1/4 screws pull them out then the cover will lift off exposing the coil and wires ,take 4 more screws one on each corner of the coil( some you only need to remove the first 4 screws and they hold the coil as well) then take needle nose pliers and pull the wires out of the cap make sure they are unplugged, then just lift the coil out watch for the insulator and spring that may stick to the bottom of the coil.......

This varies depending upon the specific tire sizes. Usually you can find this info molded right on the tire itself. You just have to be able to read the tiny print. Check this out and reply back if you need more help.

Hope this helps.

It sounds like the valve body is sticking.. For the cost I would get a replacement transmission instead

a converter is about $125-150 and most places takes about an hour to 1 1/2 hr to replaced figure $65-75 per hr labor most exhaust places may be cheaper and most give a free estimate

no it wouldn't.if its defective it will not pump gas to the carb or injector

low fuel pressure or none