It isn't easy. If you want, get a manual on your car from DISCOUNTAUTOREPAIRMANUALS.COM for about $9 and it will show you how.
Loosen the tensioner bolt on your 1990 Buick LeSabre alternator. Slide the alternator to the left and remove the alternator belt. Remove the wiring harness from the alternator. Remove the alternator retaining bolts. Reverse the process to install the new alternator.
Under the alternator. You must remove the alternator to get to it.
in the fuse box
Look at the bottom or rear of the radiator
On my 1990 Buick Regal, I need an 18mm wrench , a 10mm wrench, screwdriver, jack, and a can of brake cleaner
how do you replace an alternator on a 1990 integra
Could be a bad thermostat or heater core
It's computer controlled. No timing adjustments are possible.
The 1990 Buick Century has a timing chain and not a belt. No replacement is necessary.
Remove the wiring harness from your 1990 Subaru alternator. Remove the alternator belt. Remove the alternator retaining bolts. Reverse the process to install your new alternator.
From under the car.