96' Formula WS6

Looking at your picture, pull both hoses, put the garden hose in one side, it doesnt matter and clean it out. Thats it.

bingo

Put the hose on one and try to get water to run through it. If nothing comes out, try the other hose. If nothing comes out after a while you have a clogged heater core. Not fun, but not too bad to change.

DIYAR21

ok, i did disconnect the hoses from the water pump and flushed it with garden hose and water went through. when i unplugged the hose at the bottom of the i lost a lot of coolant so i added some after and i started the car and waited till it got hot. well it hot very hot, almost redlined and i tried to bleed the system but hose was empty, it left some air out but no coolant came out. I was like oh well, i should drive around real quick, maybe once i get on it a little, it will force the coolant thorugh the hoses. well, after driving a little, it got very hot and suddenly it got cooler to normal engine temp. i turned the heater, BINGO! it was working but not exactly, I wouldnt say it was hot hot, it was just warm, when i turned the fan to low speed, it kinda flew hotter but still not as hot as regular heater should be. well, i am happy cuz i got it working a little

P.S. after all, when i started the car to test drive, it idled like it had a HUGE cam in it. wtf was that? it scared the crap out of me. it sounded like it was barely keeping itself idling and then suddenly RPMs went up to almost 2k by itself and then wen down to 500-700 RPM and stayed there adn once i started to drive the car, it kinda hesitated for like 10-20 feet and then it went back to normal and it is all fine now. Still wondering, what the heck was that!

thanks for your help guys, it worked great!!

Injuneer

Sounds like you managed to pour a lot of coolant on the Opti.

DIYAR21

oh sh*t!! I already have multiple missfire but the car is running fine and i didnt bother to fix it.

what is gonna happen now? do i have to replace the opti? The car ran fine last night but i wanna be safe than sorry.

thanks.

Guest47904

Try douching it with the cap off with brake cleaner.