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My reverse went out and the car won’t go over 20mph. It’s making noises as well.

The first thing to do is verify the fluid condition and if it is full. If the fluid is full then smell the fluid and put some fluid on a white towel to see if it is very dark and...

When turning or stopping my car makes beeping noises

Hi Christian. Thanks for contacting us today. If the beeping noise appears to be coming from inside the cabin, it's possible that there is some sort of electrical short that is activating a warning light indicator. If the noise appears...

Do I have vapor lock, carb icing, or fuel pump issues?

I think more than anything else that the multiple grades of fuel you are using is the primary source of your problem. If you use an unleaded gasoline then use a racing 110 octane leaded gasoline, it creates tons of...

my battery keeps going dead with a new alternator and new battery

Hello, thanks for writing in about your Oldsmobile 98. You need to have the charging system checked to see if the alternator (https://www.yourmechanic.com/services/alternator-replacement) is charging the battery. You may have a blown main fuse (https://www.yourmechanic.com/services/fuse-replacement) if the alternator is proven...

How do I replace the airflow sensor on my 1985 olds 98

You definitely want to reset the computer when you make a repair like this. Resetting the computer will allow it to check the new component for proper operation and set a Diagnostic Trouble Code (https://www.yourmechanic.com/article/how-to-read-and-understand-check-engine-light-codes-by-jason-unrau) if there is still a...

where does the 02 sensor plug in to a 1985 Olds. 98

Hi Wayne. Thanks for contacting us today. Back in 85, GM V6 motors only had one O2 sensor. It was considered an upstream sensor, which means that it was installed near the center of the exhaust manifold. Downstream sensors were...

Fuel pump not coming on car wont crank replaced tps fuel pump

If the fuel pump is not momentarily running and priming at key on, then the fuel pump circuit has to be traced to find the power interruption. The recommended service to accomplish that is an electrical circuit/component diagnostic (https://www.yourmechanic.com/services/electrical-components-are-not-working-inspection). With...

Knocking noise - 1997 Oldsmobile 98

Hi! I recommend having a close inspection of the harmonic balancer on the front of the crankshaft. When the rubber that's bonded between the pulley and the hub begins to fail and separate, it starts to move around and can...

Low coolant light keeps coming on

Hi there, thanks for writing in about your 1994 Oldsmobile 98. To start, I would first visually check to confirm that the coolant level is actually staying at an appropriate level and the problem is really fixed. This can be...

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