bluebear_691

just installed a new radiator in my 89 taurus sho. when i started and put in water it was bubbling. the fan isnt kicking on. whats the bubbles mean and why isnt the fan turning on.

bluebear_691

i forgot it also has an idling problem do you thing its the cold air senser

tbird100636

When you fill the cooling system up, air is being displaced. This is the bubbles you are seeing. You fill it to the top of the neck and let the bubbles come up, then refill it. Keep doing this until the coolant stops going down so much. Then start the engine and let it idle with the cap off. Keep the coolant slightly below the neck to allow for the larger bubbles to come which will push the coolant out of the neck. (It will just rise up a little, keep a bucket under the R.F. corner of the car.) When the thermostat evetually opens, the coolant will go down again. Top of to the top of the neck, put the cap on, and fill the overflow bottle to slightly above the hot level. Raising the engine RPM and squeezing the upper hose helps too.

__________________
Master ASE Certified L1 Chrysler Technician- still a Ford fan at heart.
1964 Thunderbird Hardtop- Chantily Beige- 390 FE 4V V8-Uncle's Car
1966 Thunderbird Convertible- Red- 390 FE 4V V8- Uncle's other car- waiting for paint and body work!!!
1967 Mustang Convertible- Blue- 289 V8- helping a friend re-assemble this classic

bluebear_691

ok i think i got the radiator problem settled but what about the idling problem do you think its is the IAC senser