For the Lumina car, it is located on the firewall basically centered behind the engine. It is a little rubber elbow coming out of the firewall. It drains directly from the elbow and the elbow can be removed and unplugged.
The 1998 Pontiac Transport evaporator drain hose can be found on the bottom of the air conditioner compressor. The evaporator drain hose routes water to the bottom of the engine compartment.
Chain
Do it yourself for around $25.
under the engine on the passenger side.
it depends on where you bring it or if your doing it yourself.
most leaks are the fuel cap but if not the leak must be hunted down
have alternator been checked for voltage output
drivers side on bottom of radiator it is plastic and on mine it is light green
33ft. lbs plus an additional 1/4 turn on the bolt.
Is there a Repair Manuel for a 1998 Cherolet Lumina?
Look under the passenger side floor pan where the fire wall begins.
Passenger side near firewall. Crawl under the car and look.