hi Guys i was having idling problems with my car and someone told me to bleed the coolant via the bleeder screw. Now question is, what does the bleeded screw look like, and how should i go about doing it? with the car on or off? cause i think i found the right bleeder screw and i took it off before with the car off and nothing came out at all.. plz help. Thanks!

 

The bleed bolt is directly on top of the thermostat housing. This is used when filling the cooling system. (i.e. open the bolt, fill the system and once a steady stream of coolant is flowing from the bolt close it up). I'd say just remove your radiator cap, start your vehicle, and turn the heater on. This will bleed out the excess air in your system. You can watch little bubbles come up to the top of the radiator neck and once you see no more bubbles, you should be good to go!

There has been alot of talk on this board lately about surging idles. I myself had the problem when i threw my motor back in the car. My fix was simply to cap off two vacuum lines that run to the intake mani. Check your mani to make sure all lines are hooked up.

If this doesn't help you, try searching IACV (idle air control valve). This little p.o.s. is the cause of alot of surging idles! Hope this helps

 

Yup well i bled the coolant and nothing... still the same dipping... its funny, cause when it dips, even if i turn the wheel or lower the windows, it will even dip lower! does this help anyone in helping me? is it the IACV, and if so does anyone have an extra one? thanks

 

you can do a few tests. first bypass the iac, its simple to do .put a piece of thin cardboard between it and the manifold and bolt back on .if the surging is gone theres you prob.if its still there check you cold start ,its mounted on the bottom of the thottlebody.its easy to check take you intake off and put you finger over the hole inside of the throtle body while the car is running. this stops air from bypassing to the other side.good luck

 

hey ,60-1h22hatch

when i put my finger on the cold start bypass hole at the bottom the bad idle persisted

but when i put my finger on the hole inside the top of the throttle body it either smooth the idle out or tried to stall the car.

What do i do?

 

cool,it will be easy.take the iac off and block the holes with solid gasket ,then reinstall.now, to fix the low idle.you need to adjust the butterfly plate.it has a set screw that can be adjusted.basiclly it needs to be opened more and thats because the idle screw cant pass enough air ,although you can use the idle screw to fine tune.remember this isnt a cure but it is a fix.you might find on a cold day it willl need to warm up to run well.