1996 Chevy Monte Carlo, I recently had the water pump replaced.
Now if I turn the AC up, the temperature starts to spike higher than it ever has previously, but then gradually gets down to high-normal range as the cooling fans kick on.
When I popped the hood as it was overheating, I heard a hissing sound coming from the middle area of the engine around the water pump area, and also the main radiator hose was throbbing as if it were sucking air.
Should I get the hoses replaced, or could the connection to the new water pump just be loose?
2007-04-21 07:59:06 · 13 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Water pump was replaced by a mechanic.
The thermostat registered normal temperatures until the old water pump started to die.
Fluid level is within the normal range.
2007-04-21 08:16:10 · update #1
Getting a new fan control thermostat today (for around $7), will install and see if this makes a difference, worth a shot rather than taking it back to the shop again.
2007-04-23 09:27:55 · update #2
Assuming it's the thermostat, can someone post a link to specific details on where the thermostat is located?
2007-04-24 13:26:39 · update #3
New hoses are not a bad idea, but that isn't causing the high heat.
I would get a new fan thermostat. And a new fan motor.
The hissing and throbbing sounds like the motor is too warm, the coolant is at it's boiling point. Have you flushed out the radiator? Did you (or they) put in the proper mix anti-freeze?
2007-04-21 08:16:43 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Take it back to the mechanic the put the pump in. He should have replaced the thermostat at the same time.. Sometimes they do sometimes they don't if cost was a issue to you at the time. It would take him less then a few minutes to see whats going on. It is possible the cooling fans are not coming on when they should be as well. He might not even charge you to glance at it for you. Newer cars have so many different sensors and such its kind of hard to tell. If you car has never had the hoses replace they should be. We replace hoses as part of a 60,000 mile maintenance. Would not hurt but I personally don't think that will solve the problem. The hissing sound could be coming from anywhere. Hissing is usually a worn Vacuum hose. Have a tech glance at it.
2007-04-29 04:52:57 · answer #2 · answered by asccaracer 5 · 0⤊ 0⤋
sounds like a freeze plug there are more than one try to see where the steam is coming from probably from the bottom of the car those are the first freeze plugs to go bad but it could be hidden up on the side of the engine look in a Chiltons manual at the parts store or library for your model car to find location of these plugs. Or check your thermistat sometimes on the radiator sometimes on the engine where the water enters from radiator,easy fix. the throb was from the water boiling. If you cant find a leak it your thermastat.If you have to add a lot of water to the radiator you have a leak. look for rust on hoses an water pump that might be the leak.
2007-04-28 13:38:34 · answer #3 · answered by cattdaddy1216 2 · 0⤊ 0⤋
The thermostat is located on top of the motor. Follow the upper radiator hose to motor. There will be a metal fitting attached to the motor with two bolts. Drain the radiator fluid down half way then remove the bolts and the thermostat will be under the metal fitting. BE SURE TO INSTALL THE NEW ONE IN CORRECTLY! Or you will overheat as it will not open properly. The spring side goes toward the motor!
2007-04-26 21:15:50 · answer #4 · answered by RyuSaiKan 3 · 0⤊ 0⤋
Take a look at the thermostat first. Then pressure test the system to be sure it is holding pressure. If that doesn't get it, then it's time to check out the water pump. Take it back to the installer and tell him the problem.
2007-04-21 08:29:47 · answer #5 · answered by Fordman 7 · 0⤊ 0⤋
whoooooo, there..before you start paying outta the wazoo change your thermostat. trust me the same thing happend to me, and i changed the thermostat and tada, it took care of the issue...chevys are east to work on, the thermostat is usually ant the end of the radiator hose toward the end when the hose meets the engine,not the radiator, and normally its on the top...just make sure that the car is not hot to avoid burining your self or having the steam melt your skin.....been there, done that. you might have to put in more fluid once this is done
2007-04-21 08:21:26 · answer #6 · answered by nic3cova 1 · 1⤊ 0⤋
Did you change the waterpump yourself or have someone do it for you? Chances are it may not have enough fluid in it check it. You could possibly have a bad pump or something is clogging your cooling system try having it flushed, but check the fluid first just to make sure it is at a proper level
2007-04-21 08:08:31 · answer #7 · answered by ja man 5 · 0⤊ 0⤋
the car is supposed to have a sealed cooling system - its pressurized- if its hissing you have a problem in that the system won't pressurize and the fluid will boil sooner and turn to steam. Pressure test the system and see what needs to be sealed -make sure you have a 50/50 mix of coolant and water and that the sytem is full before you start throwing money and parts at it.
2007-04-21 08:21:03 · answer #8 · answered by Norman 7 · 0⤊ 0⤋
Thermostat, most likely. if your hose is hot except at the radiator then that would be the place to start. the cooling systems are pretty simple on most cars. I change my fluid and thermostat once a year. If you have a good mechanic do your work they should replace the thermostat when they flush the coolant. most quick lube places do not. if the thermostat is not opening the water will not be able to get cool.
2016-05-20 04:12:47 · answer #9 · answered by rochelle 3 · 0⤊ 0⤋
you need to replace the $1.50 thermostat
2007-04-21 08:04:12 · answer #10 · answered by Anonymous · 0⤊ 0⤋