No sign of vacuum leak Idle problem

[DejectedAngel]

Im going to have to try that but maybe a flush because I have already topped off the coolant and opened the purging valve at the thermostat.

But like I said its no longer surging its just idling high at 1300k?

[DejectedAngel]

I went ahead and checked the FITV and closed the white screw inside.
Still idles at 1200k and it begins to surge when the car is at normal tempeture?

[DejectedAngel]

I have rechecked everything again and still no luck. There has to be something missing that i am overlooking?

[DejectedAngel]

OK i hope this is the culprit- I found out that the upper part of the radiator seems to be leaking antifreeze in the grooves. It is not a whole lot but it is noticeable.

Should this be the reason why the car revs stay at 1000k and why it surges while reaching normal temperature?

[dano28]

Could be a low coolant problem..

Have you checked the vacuum connection for the power brake can ? you can have a leak where the master cylinder attaches to the can. Pinch off the big vacuum line.

The Power Brake system is often overlooked because it doesn't LOOK like the rest of the vacuum lines.

[DejectedAngel]

Yes i did and there wasent a changed in RPMs.

[DejectedAngel]

All right went back to rechecked the car.

From a cold start started the car and no surging problem. Revd at 1500k from cold. As soon as it started to reach normal temperature it begin surging again but not consisting.

This is why i am asking since the radiator is leaking from the top side. Can that be the problem?

[DejectedAngel]

Anyone?

[GearBangnAccord]

follow all the vacuum lines from IM to w/e it plugs to eg.. Cc unit etc..
make sure their all pug in especial at the T joints.

Are all you Im sensors plug in tightly? Have u cleaned the screens on the IACV?

I would also recommend setting ur ignition idle before u set ur base idle.
This is an F22 were talking bout correct?

[DejectedAngel]

Yes its a F22a6. Well i did remove both iacv and fitv and cleaned them very well.

As far as vacuum lines I did what I could on checking every single line and hose. I sprayed carb cleaner everywhere possible. The thing is you cant hear that hissing sound that a vacuum leaks makes.

The only thing i see wrong is the radiator leaking from the top part when it gets hot. As soon as that happens the car starts surging. And the surging becomes steady for a few seconds and then quits for a few seconds and than it starts back-up. Its not a constant up and down all the time.

[GearBangnAccord]

Yes its a F22a6. Well i did remove both iacv and fitv and cleaned them very well.

As far as vacuum lines I did what I could on checking every single line and hose. I sprayed carb cleaner everywhere possible. The thing is you cant hear that hissing sound that a vacuum leaks makes.

The only thing i see wrong is the radiator leaking from the top part when it gets hot. As soon as that happens the car starts surging. And the surging becomes steady for a few seconds and then quits for a few seconds and than it starts back-up. Its not a constant up and down all the time.

u can bleed the coolant from the Tstat housing it has a 12mm bleeder bolt it helps release trapped air in the cooling system

[DejectedAngel]

I have bled the coolant system twice and that did not do any change.

Note: The car idles at 1000k when it reaches normal temperature plus the idle screw is fully closed tight.

[dj_ender]

OK i hope this is the culprit- I found out that the upper part of the radiator seems to be leaking antifreeze in the grooves. It is not a whole lot but it is noticeable.

Should this be the reason why the car revs stay at 1000k and why it surges while reaching normal temperature?

It could be, most likely you have air in the coolant system, which will cause surging. Sounds like you need to fix that hose, then bleed the coolant system (with the heater on hot, but NOT turned on). And then you will probably have to reset the base idle and reset the ecu.

[DejectedAngel]

Its more like a new radiator. Its leaking coolant from the top grooves.
Now can that be reason why the cars RPMs stay at 1000k? Even with idle screw turned closed tight?

It could be, most likely you have air in the coolant system, which will cause surging. Sounds like you need to fix that hose, then bleed the coolant system (with the heater on hot, but NOT turned on). And then you will probably have to reset the base idle and reset the ecu.

[dj_ender]

Its more like a new radiator. Its leaking coolant from the top grooves.
Now can that be reason why the cars RPMs stay at 1000k? Even with idle screw turned closed tight?

oh shit, I thought you meant from the hose clamp on the hose. Uh yeah.... that WOULD cause your issues, youll never get it running right until you fix it. You could always try dropping some sealant into it,but get the good stuff, i cant remember the brand, but the bottle is clear and the liquid looks like liquid metal. Get it, it works! Used it a few times, never lets me down. But if the hole(s) are too big, or too many, it may not help, but its cheaper than a new radiator.