2007-11-23 10:25:12 · 14 answers · asked by jacqueline8269 2 in Cars & Transportation ➔ Car Makes ➔ Ford
You may need a coolant flush.
As coolant ages, it develops deposits that can form enough of a barrier to prevent heated coolant to reach your heater core, which provides heat to your interior.
It's relatively cheap to DIY and flush it with off the shelf chemicals available at any Parts store, and usually around $80 to have it done at a shop.
2007-11-23 10:29:25 · answer #1 · answered by Anonymous · 2⤊ 1⤋
This Site Might Help You.
RE:
my 1998 ford fiesta 1.3 heater is only blowing cold air have replaced thermostat any ideas what could be wrong
2015-08-12 03:15:11 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Ford Fiesta 1998
2016-09-28 05:19:11 · answer #3 · answered by hachenburg 3 · 0⤊ 0⤋
It could be a faulty heater control or an air lock. You can get an air lock if your rad water goes down too low. Then the water is replaced by air. To check if you have an air lock, Start your engine and let it tick overwith the cap on the rad or expansion bottle taken off.Let the engine run until the temperature gauge starts to move. This may take some time because with the cap off your water is not pressurised. As the temperature gets to its normal spot on the gauge, Rev the engine and see if the water level has dropped. If it has top it up and rev the engine again until the water level is not dropping. Switch off engine , replace cap and see if it is okay for heat. This method will bleed any air out of the heating system.
2007-11-23 10:50:36 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I agree with nosdda, first stop is the heater controls and what they're supposed to move. Anything stuck is quite easily freed off.
Then, if no success, you may need to bleed the system. If your problem arose before you started doing the thermostat etc., I'd suspect the controls first. This sort of problem usually arises in the autumn when we try to move controls that have been sitting on "cold" all summer & find they've stuck.
Last resort is a sludged up system, which shouldn't be a problem if you've been using the correct antifreeze/coolant mix.
Good luck!
2007-11-23 18:56:31 · answer #5 · answered by champer 7 · 0⤊ 0⤋
I agree with Travis, some small cars also have a problem with getting an air pocket in the heater core, you may try taking off one of the hoses and puttin a garden hose to it and make sure theres a good flow
2007-11-23 11:57:13 · answer #6 · answered by silverbullet217 4 · 0⤊ 0⤋
Pull your A/C fuse! Your condenser may be stuck on and that closes the heater valve. Had this issue on 2 of my personal vehicles this year.
2014-12-03 08:27:17 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Your thermostat has nothing to do with your heater. First check your evac unit( your control switch) this unit is what keeps the coolant flowing to your heater core. and controls the duct doors that let the heat get to the blower motor and out to the cabin
2007-11-23 10:33:14 · answer #8 · answered by jerzeyrican67 1 · 0⤊ 1⤋
On your heater controls, the lever that controls the temperature, cold to hot, it adjusts the flow of hot water through your heater core, check to make sure it is functioning properly.
2007-11-23 10:32:26 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Start with heater control valve. If stuck, replace. If valve is ok, then have cooling system flushed out my mechanic. If still no good, you probably need a heater core because it's plugged up.
2007-11-23 10:30:08 · answer #10 · answered by largecar8 4 · 2⤊ 1⤋