Take off the three bolts off on top off the engine take that pies off and the coil packs are right there if u have a 4 cy engine
The 1999 Oldsmobile Intrigue coil pack is located on the firewall, in the engine compartment. The coil pack will be on the passenger side of the firewall.
1999 Alero how do i test ignition coil pack
UNDER THE COIL PACKS
There are a couple of reasons why a 1999 Oldsmobile Alero ac heater to stop working. The heater coil may need to be replaced or the HVAC blower motor may need to be replaced.
1999olds have coil packs remove cover and pack on top of engine plugs should be right there no wire only thing need is boot replacements for the pack if needed
Top Back part of Motor
The heater coil is located behind the dash board. You will have to remove the dashboard to get at the heater coil
under the coil packs which are located at the rear of the motor on top
standing at front of vehicle look straight to the back top of motor,
they are located under the coil pack
It is located where all the spark plug wires attached to the spark plugs go to it.
Usually passenger side behind glove box