Take cap off reservoir and Jack the car up supporting it on jack stands at the front end you want the front wheels off the ground about 4 or 6 inches enough to give you a level radiator meaning that you want the radiator cap once removed the top part of the plastic to be level or nearly level with the back firewall or where your heater hoses are going in to the cabin if possible you want to tilt the front of the car enough to make the radiator when viewed from the front to back (standing at front bumper)to be above the radiator heater hoses then let the car sit there for a few hours after it sets for about 3 to 4 hours start the car with the radiator cap off turn the heater on full blast and wait for it to warm up once it starts to warm up coolant will start to come out of the top of the radiator when that happens put the cap on sealing up radiator. and check your temperature gauge make sure it's not heating up too much also make sure your heater is putting out hot air that being said double-check and make sure your cooling fans are working and also before any of it probably double check your thermostat make sure you didn't put it in upside down.
SOURCE: overheating an losing coolant
Make sure there is nothing blocking the air flow in front of the radiator, it could be something small covering it to make these cars overheat. Ive had the same problem in the past.
SOURCE: looking for procedure to properly bleed an audi A4
You didn't say what year the car is or what other diagnostics you've done lately...My guess is the radiator core is plugged...If you want to tackle it yourself, buy a Chiltons repair manual at AutoZone or NAPA stores ($25). I suspect you'll have to order the manual.
Good Luck
SOURCE: 93 lexus gs 300 overheats. i changed water pump,
Try blowing the radiator fins out (from the inside) with compressed air--bugs and other debris can clog the air flow. Do the radiator fan(s) run when hot? If not, check for blown fuse, seized fan motor(s), bad relay, or bad engine thermal sensor. Is it losing coolant water from somewhere?
SOURCE: Overheating Fiero
well fieros are very different cars you need to fill collent in a speical way so air doesnt get in the lines most fiero owners do not know this but it very important The best way to tell it is for wikipedia
Cooling system issues
With an already hot normal operating temperature of 220 °F (104 °C) prior to the recall switching to a 195 °F (91 °C) thermostat, the mid-mounted engine utilized long pipes to carry coolant to the front-mounted radiator. This demanded that a special coolant filling procedure be followed to prevent severe overheating. Simply pouring coolant into the thermostat housing (on the engine) would leave an air bubble in the radiator, while adding coolant just to the radiator would leave an air bubble in the engine's coolant passages. Proper procedure (with engine idling and the thermostat removed, filling the thermostat housing, burping the bubble out of the radiator by cracking open the radiator cap until coolant exits) must be followed in order to ensure an air-free cooling system.
A second problem has become common as more Fieros are being serviced by shops unfamiliar with their design. The under-body coolant tubes are positioned in such a way that a casual glance beneath the car will not suggest their fragility. As a result, many have been crushed by shop lifts, resulting in a near complete lack of engine cooling. The age of the car means that even GM dealerships may now be unaware of the proper jacking methods.
Lastly, the absence of a spare tire (at the front of the car, right behind the radiator) could have an effect on coolant system performance. i dont know who wrote this and i dont take credit for it
SOURCE: 1995 legacy 250t wagon - overheating
Sometimes after changing the coolant, people (like me) decided to fill the radiator ... only to find the car overheated like a candle.
When you fill the car, DO NOT fill the radiator first. Pull the top hose off, and fill the engine (via the hose) with coolant. Once that's full, shove the hose on and then top off the radiator.
Solved the problem for me. Has never overheated since.
Welcome to FIxYa.com
How to Fill Coolant If the coolant system has been flushed, first add 100
percent ethylene glycol in the amount listed for the appropriate engine application.
Then slowly add clean water to the system until the level of the coolant mixture
has reached the base-of the radiator neck. Wait for two minutes and recheck the
level of the coolant mixture. add clean water if necessary to restore the coolant
mixture level to the base of the radiator neck When refilling the engine cooling system, add three engine
coolant supplement sealant pellets, GM RN 3634621 or equivalent, and GM
approved new Ethylene Glycol Coolant DEX-COOL GM RN 9985809. If the cooling system is being refilled ONLY (no flush), a
50 percent ethylene glycol and 50 percent clean water mixture should be used to
fill the system. Fill the system until the level of the 50150 mixture has reached
the base of the radiator neck. Wait two minutes and recheck the level of the coolant
mixture. add a 50/50 ethylene
glycol water mixture as necessary to restore the coolant mixture level to the base of the radiator neck. Install the radiator cap making certain the arrows line up with the
overflow tube. Close all air bleeds.
DO NOT over torque the air
bleed valve. The air bleed valve is made
out of brass. Fill the coolant
reservoir with a 50 percent ethylene glycol and a 50 percent clean water coolant mixture. The proper amount of this mixture to
be installed into the coolant reservoir is listed below: Add 0.65 liters (0.68 quarts) of a 5010 mixture of ethylene
glycol and clean water to the coolant recovery reservoir. CAUTION: The low coolant indicator lamp may come on after
this procedure. After operating the vehicle so that the engine heats up and cools
down three times. if at any time the "TEMP' warning indicator comes on. Immediate
action is required.
Air bleed vent is at the thermostat house
Thank you for using FixYa.com
Regards, Lee Davidian
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