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Hi i hav a 1995 ford maverick 2.7 td . heaters blow warm when running and coold when idling loose no water but blows air into expansion tank when engine is turned off
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It could be a few things. First try to see if all of the vacuum lines are connected. It there is a leak the system will not work properly. It could also be the heater switch causing the problem.
Hi Chris, sounds like your thermostat may be worn and not closing all the way which would cause your engine to run cool at times. If you have a temp gage it should tell you if the engine is actually warming up or not. If not I would replace the thermostat.
hi there it sounds like the matrix has gone it is at the back of the centre panel at the bottom when the engine is hot touch the matrix to see if its warm
take it to someone else, have them pressure test the system, mine did that and i was into 1200 bucks for new heads, two years ater since i drove it like you have been i developed a misfire , the coolant leaks into the system and is like sand paper on cylinders bearings, clue was the expansion tank bubbling and vibrating after ya turn off the car, good luck i hate this car
when car is at operating temp both heater pipes should be more or less the same temperature. If one is cold, try getting the car up in the air so the radiator or expansion tank is higher than the heater...release (carefully) the pressure cap and give the engine three good revs, see if any air comes out and heater pipes equalise. I there is no air in your system you may have a heater water valve fault. Try to locate valve and see what contols it (mechanical , electrical, vacuum)..maybe itcan be manually moved to open, maybe it neds to be replaced.
If you replace it, the air must be bled from the cooling system (see above), but run car until warm with cap off and air will bubble out.
always check coolant levels later when car is cold. Top up coolant as required.
First ensure the coolant is not low it must be at the right level or heater won't work top off the reserve expansion tank with 50 percent water 50 percent antifreeze mixture. Repalce the thermostat, purchase a Haynes repair manual at a Advance Auto parts store for diagrams and thermostat replacement procedure.
USE A RAD FLUSH SOLUTION OR CHECK THE HEIGHT OF THE HEATER MATRIX IN THE CAB , IF ITS HIGHER THAN THE FILLER/EXPANSION TANK. THEN ITS AN AIR LOCK, LOOK FOR THE HIGHEST PIPE AND SEE IF THERE IS A BLEED VALVE, IF NOT TAKE BOTH PIPES OFF THE MATRIX FEEDS AND FLUSH OUT TO SEE IF IT IS BLOCKED, AND RECONNECT LOWEST PIPE FIRST AND FILL SYSTYM TILL WATER APPEAR FROM TOP AND RECONNECT RUN MOTOR, AND KEEP TOPIN UP
You may have an air pocket in your system which some times happens. One way to get rid of it is to take the upper hose off on the engine side, fill your system with water until it runs out from your engine block, replace the hose, start your car turn you heater on and set to hi keep the radiator cap loose until the temp start to rise then close tight. Once the air pocket had been remover you can drain some of the water from the radiator using the lower drain plug and add antifreeze.
Hello
Your Ford Maverick should be a self bleeding system, but if that is not working then leave the red cap off turn your heater on hot & full blow, then just keep top in up the header tank, after sum time you will probley get a the air coiming out of the red/header tanks.
This should help you bleed the the jeep
Regards Paul www.limotec.co.uk
If you need more help please contact me
Let your engine warm up with the rad. cap off and see if the coolant level drops. and make sure your overflow is full. It blows cold air because there is no water getting to the heater core. And it shows a normal(ish) temp because the water needs to be touching the temp. sensor. I really do think there is air in the system and there is not enough coolant but hard to tell from here. Also as with overheating any time make sure to check your oil and look for any coolant as the head gasket seldomly holds together if the motor overheats.
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