spilly

Hi,

I recenctly bought ik sierra 2.0i dohc With a broken head gasket.
I have rebuild the head, changed the timing chain en put the engine back together.

The problem is that it idle's at 1500rpm hot and cold. At constant speed it stutters, when i fully accelerate it runs fine and pulls good.

I have disconnected the idle speed control valve but it makes no difference. Alsof cleaned it out and tried aan different one.

dojj

iTrader: (3)

You need to do a full reset of the idle gubbins, including the tps and idle screws

Assuming you timed the chain correctly

spilly

The chain is fitted correct.

There is no idle screw on a 2.0i.

How do i reset the tps and idle gubbins?

Gonna check for any vacuüm leaks tonight.

dojj

iTrader: (3)

They do have an idle screw, that's why you need to adjust it

Think it's an 8mm with a flat adjustment screw on the throttle housing you need to slacken off first

Then you need to slacken off the two tps screws a little so that it's naturally adjusted

This will drop the idle and then it's all good from there

spilly

Is it the one under the Tps it's a flat screw and kind off sonk in the housing. The other ones are for bolting the tb to the inlet

Ik have an picture, but dont knowhow how to upload it via smartphone.

big_wasa

My money is on an air leak.

dojj

iTrader: (3)

If it's an air leak most likely to be the pipe from the crank case breather around the back of the engine or the actual breather under the exhaust manifold

spilly

sorted it out a while back, inlet manifold did not seal properly and is now sanded flat, also the crank case breather was leaky. Al sorted now, she spins like a kitten.

thanks alle for the comments