Our '98 Achieva had the same problem. It was due to the air conditioning hose being blocked. Therefore the water was backing up into the vehicle, under the carpets and into the back seats instead of flowing out.
its located on the passenger side by the firewall
The Achaiva from 92 to 97 replaced the Cutlas Calais. It was replaced in 99 by the Oldsmobile Alero
The Oldsmobile AleroThe vehicle that replaced the Achieva was Oldsmobile Alero (produced from 1999-2004).
Should be at the passenger's side firewall
On my 93 it is under the kick panel under the dash on the passenger side. Fairly easy to get to.
i have a 96 olds achieva and my high beam light was flashing, i checked the headlights and one of my low beam headlights was out. once replaced the flashing stopped.
The drivers side can be changed from the top and the passenger side can be from underneath the car.
To replace most heater cores you have to remove the dash on the passenger side.
I have a 94 Achieva that did the same thing. It was a bad light switch. Replaced the light switch and have had no problems since'
is it hard to change the water pump on a 1992 Oldsmobile achieva. Yes, it is very hard to replace a water pump on an Achieva. When the pump died on my 1996 Achieva, the engine needed to be unbolted and removed to get to it. As I recall, it cost about $500. I have a 95 Olds Achieva 3.1 and the water pump was very easy to change. Mine is on the front passenger side of the engine. Very easy to get to, just be careful not to break any bolts off. lol
2.3L quad 4 is located under the exhaust manifold passenger side. To replace you have to remove the exhaust manifold.
The 1992 Oldsmobile IAC valve can be found attached to the firewall in the engine compartment. The valve will be on the passenger side of the firewall.