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Is there a bleeder valve for the cooling system on a 1999 ford taurus 3.0 v 6. Have done all the steps of flushing, but heat comes out when pressing on gas pedal but when it idles heat turns. cool.
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DON'T run the engine for too long if your getting steam. That will risk over heating problem putting other engine parts at risk of damage.
How are you testing for circulation? Coolant systems are usually pressurised when the engine is running so a pressure leak somewhere in the system could be the problem, The bleeder valve could be part of that.
Try checking the basics first. Do you have enough coolant in the system? When the thermostat opens, the coolant level can drop.
Check the routing of the belt for the water pump. Sometimes if the belt is set up wrong it can spin the pump backwards causing issues.
There are also times where a new part can be faulty. I had this happen with a new wheel bearing that lasted just 150 miles before it started making noise like it was going to fail.
Check the heater hoses that go into the firewall to the heater core, they both should be hot,if only one is hot and the other isn't,then the core is plugged. Remove the hoses at the firewall, buy of hose the same diameter,buy enough length so that you can flush away from the engine compartment, install it on one of the heater core pipes,using a garden hose with a jet sprayer slowly blast water into the hose, until you see clean water coming out from the other pipe. Remove the hose and install it on the other pipe of the heater core and repeat the process,you may have to do it several times to completely unplug it. This is a typical problem with a 3.0, 2 valve taurus,coolant looks brown and rusty. The entire cooling system should be flushed, if it isn't the heater core will plug again.
it sounds like you have a air blockage, or the cooling system needs flushed. to flush system go to ( autorepair.about.com/od/regularmaintenance/ss/coolant_f...) click on 3rd one down. remember to bleed air out of system, this works the best. turn heater and blower on high, start adding coolant. start car let it idle till radiator thermostat opens. when top radiator hose gets hot you should have heat. some vehicles have a bleeder to let air from system. when filling putting coolant in system. if it does, then open bleeder while engine running and putting in coolant untill there are no air bubbles coming out. have a good day !! when doing flush if need be. you can go to any auto parts store and buy radiator flush. follow directions on the back ( prestone is best )
It could be air locked. Feel both your heater hoses, and, with the engine running, loosen the one that's cold, if there is one. If that doesn't help, it is probably your heat control valve that is malfunctioning.
check that there is flow coming out your heater hoses
step 1 remove 1c heater hose
step 2 have a friend start car remember it is easy to install a heater flush valve and it makes the job easier
if there is flow then eithor you have a blockage or an air lock
if there is no flow there might be a valve in the heater lines to stop the flow of coolant to the car when ac is on i have seen theise in a few cars but they are rare if there is a valve than make sure it isnt frozen with rust and ir does work in a ford i would assume that it is a vacume valve
if the cooling system is not clogged and the water pump is ok then there may be air trapped in system, bleed air from system if need be. if air is trapped in system you will not get any heat. start car let it run take cap off of coolant tank then find bleeder for the coolant system, open bleed screw and air may be trapped in system.make sure coolant is at a proper level. do not forget coolant tank cap when done.
did you release air from cooling system when replacing coolant!! if air is trapped in system it will not heat up proper. turn fan on high heat locate bleeder for cooling system, open bleeder with car running. if there is any air in system you will see it come out of bleeder. keep checking for heat. when you get heat bring coolant to proper level. leave top off of coolant recovery tank while bleeding system. put cap back on when done.
check to see if eans coming on if they dont then its fan relay if they are the rad is pluged or ther is an air pocket in the cooling system there should be a bleeder on it
have u directly flushed the heater core with a garden hose by removing the hoses from the core at the firewall and forcing water through it? just flushing the cooling system will not clear the core if it is plugged with rust.
You may need to remove the hoses from the heater core inlet an outlet and flush it directly, I saw these get plugged up on many cars like yours while I was a Ford technician, direct flush of the core cured the issue.
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