look to the right of the throttle body. there should be two vac. lines one going to the right valve cover the other going to heater controls,etc. you might need to pick up the radiator hose to see them better.
It doesn't have or need a line connected to it. The spider is inside the vacuum chamber.
where is the 2002 oldsmobile alero cruise control vacuum line?
Some of the HVAC controls are vacuum operated so, yes a vacuum leak could effect the cooling.
System to lean, bank 1. Check for vacuum leaks under the hood.
Which vacc. line and what size engine? Vacc lines are usually plugged into a connection on the intake manifold.
You have a vacuum line disconnected probably under the hood. The HVAC controls are operated by vacuum and when there is no vacuum it system goes into defrost mode.
on my 85 s10 there was a small hole in the vacum line.
Test it with a vacuum gauge.
It is a vacuum reservoir to keep the HVAC controls in operation when engine is not producing good vacuum such as under acceleration or climbing long grades. Newer S10's still have one but it is hidden inside the drivers front fender.
Vacuum supply to HVAC is cut off for whatever reason. Check under hood for a broken or disconnected vacuum line.
The 2002 Chevrolet S10 was fuel injected.
Sounds to me you have a vacuum leak. Check under the hood for a unplugged or broken vacuum line. I think that model has a vacuum reservoir attached to the under side of the hood on the drivers side. I have seen that vacuum line pulled off accidently.