So i own a 97 cavalier with the 2.4 L in it. I've only owned this car less then 2 months. The car has 182,xxx miles. When i bought it, it ran fine and didn't give me this issue until later on. So here I'll go ...
When i drive the car for a period of time, warm air comes out but when i take my foot off the gas to come to a stop sign or anything for that matter then coldish air comes out. So pretty much the RPM'S have to stay up for hot heat to come out. The temp gauge usually reads in the middle but the longer i drive my car the more the temp needle will creep up closer to the red. I never let it get that close, If it does i pull over and turn the car off. I then check under the hood and it seam's to me like it's clogged or something like its trying to come back out of the Over Flow Tank. I then slowly untwist the cap and let the coolant poor out, allowing it to settle. By the way the coolant is Coldish always!. At the same time its making gurgling noise's.. Once its finished making noise's and over flowing from the tank i then start my car up and get home with no problems. I then go back out to my car the next mourning and the coolant seemed to settle because the Over Flow tank barley has any coolant in it.
I have had a few mechanic's look at it. What it comes down to is them telling me that i need a new Water Pump because the Impeller's probably aren't any good anymore. I get other people telling me its my thermostat and its not functioning like it should. I am really confused as to what the problem could be???
I have a new thermostat sitting in my car because i haven't had a mechanic change it yet because i want to know what the problem could be first for sure.
I have a new mechanic that say's he can change the Water pump for me this Sunday. All i would have to do is buy the the Water Pump and Coolant. He is willingly to help me out so he might charge me less then $100 to do it. I have to yet talk to him about the labor price but he said to me that he can work something out to help me.
Can i have anyone's advice to tell me what i should do??
Thank you for reading this!