Sounds like Water Running when I hit the gas!
#1
Thread Starter
Join Date: Oct 2006
Posts: 3

I hear this sound from the right side dash area of my 2001 Blazer when I hit the gas? Any thoughts on what the problem might be? Cooling system maybe?
#2
Super Member
Join Date: Jul 2006
Location:
Posts: 1,202

Yes, you have a low cooling system or a partially restricted heater core.
#3
Thread Starter
Join Date: Oct 2006
Posts: 3

Ok. Thanks. Just to clarify.....is this related to the cars Air Conditioning system or to the engine cooling system? The reason I ask is because I just replaced one of the radiator tanks and wondered if it might be related to this somehow.
#4
Beginning Member
Join Date: Jul 2006
Location:
Posts: 26

Yes as LC says...Nice rides Lastcoupe...bowties everywhere!
Do a search for heater core and there are some good tips for flushing
it out.
Do a search for heater core and there are some good tips for flushing
it out.
#5
Super Member
Join Date: Jul 2006
Location:
Posts: 1,202

Yes as LC says...Nice rides Lastcoupe
bowties everywhere
#6
Beginning Member
Join Date: Jun 2005
Posts: 17

Could just be an air bubble in the system. Dodge trucks do this all the time. The Fix is to run it up on some ramps and let it run for a while with the radiator cap off and that should purge the air.
#7
Join Date: Sep 2006
Location:
Posts: 146

my moms 95 taurus makes that same noise. i know it's low on coolant, and yours might be too.
#8
Join Date: Sep 2005
Location:
Posts: 865

I get this every time the coolant is low and it will lead to a restricted heater core since the dexcool reacts with any air in the system, causing a sludge like substance. If the tank you replaced had this substance then it will be very likely that your heater core will be restricted or maybe even plugged.
You can reverse flush just the core by removing the hoses at the firewall and running a garden hose on the fittings. Start with the one on the right (looking at the firewall from front of the truck) then go to the other then make sure you get them completely clean and then add more coolant.
I have to do this again and this time I will be replacing the coolant with a more normal coolant. Dexcool has some flaws that I just don't have the money to live with. And since the Dexcool is only so that you don't have to replace every 100K I think that moving to the Green or regular style coolants works better. Well at least they should not cause the heating system to fail if there is a little air in the engine cooling system.
You can reverse flush just the core by removing the hoses at the firewall and running a garden hose on the fittings. Start with the one on the right (looking at the firewall from front of the truck) then go to the other then make sure you get them completely clean and then add more coolant.
I have to do this again and this time I will be replacing the coolant with a more normal coolant. Dexcool has some flaws that I just don't have the money to live with. And since the Dexcool is only so that you don't have to replace every 100K I think that moving to the Green or regular style coolants works better. Well at least they should not cause the heating system to fail if there is a little air in the engine cooling system.
#9
ORIGINAL: 20Blazer00
I get this every time the coolant is low and it will lead to a restricted heater core since the dexcool reacts with any air in the system, causing a sludge like substance. If the tank you replaced had this substance then it will be very likely that your heater core will be restricted or maybe even plugged.
You can reverse flush just the core by removing the hoses at the firewall and running a garden hose on the fittings. Start with the one on the right (looking at the firewall from front of the truck) then go to the other then make sure you get them completely clean and then add more coolant.
I have to do this again and this time I will be replacing the coolant with a more normal coolant. Dexcool has some flaws that I just don't have the money to live with. And since the Dexcool is only so that you don't have to replace every 100K I think that moving to the Green or regular style coolants works better. Well at least they should not cause the heating system to fail if there is a little air in the engine cooling system.
I get this every time the coolant is low and it will lead to a restricted heater core since the dexcool reacts with any air in the system, causing a sludge like substance. If the tank you replaced had this substance then it will be very likely that your heater core will be restricted or maybe even plugged.
You can reverse flush just the core by removing the hoses at the firewall and running a garden hose on the fittings. Start with the one on the right (looking at the firewall from front of the truck) then go to the other then make sure you get them completely clean and then add more coolant.
I have to do this again and this time I will be replacing the coolant with a more normal coolant. Dexcool has some flaws that I just don't have the money to live with. And since the Dexcool is only so that you don't have to replace every 100K I think that moving to the Green or regular style coolants works better. Well at least they should not cause the heating system to fail if there is a little air in the engine cooling system.
Now with that said, when I have done my flushes on my vehicles, I have used Prestone Yellow coolant which is supposed to be All makes All models extended life coolant. I have never had or heard of problems with this coolant and I have used it primarily because it is still extended life, but is cheaper than dexcool.
Remember, you final flush through everything should be done with distilled water to make sure that impurities from tap water don't degrade the cooling system fluid quality.
#10
Thread Starter
Join Date: Oct 2006
Posts: 3

Could just be an air bubble in the system. Dodge trucks do this all the time. The Fix is to run it up on some ramps and let it run for a while with the radiator cap off and that should purge the air.
Thanks for the help guys. I tried this last night and it seems to have done the trick.
Thanks for the help guys. I tried this last night and it seems to have done the trick.






