1.8 Zetec idling badly
 

Wondering if someone can help.

My 99' 1.8 Zetec is hunting whilst idling and can feel it vibrate throughout the car, it used to cut out aswell, but a blast of throttle body clean sorted that.
It pulls fine throughout the rev range, its not missing, coughing or spluttering, just when idling.

Also when the clutch is dipped at speed the revs stay at 1500 RPM then fall to 750 RPM just before it reaches a standstill. Throttle position sensor maybe?

Any help would be great.

Never mind, found the problem. One of the hoses that goes onto the back of the inlet manifold was sucking in air. Stick your finger over the hole and perfect idle.

Anybody no what this hose is? It goes into the inlet manifold right at the back and goes around the side of the engine, where it joins onto a steel pipe then, goes under the ignition coil and then goes near the cat somewhere.

might be egr exhaust gas recerculation just a quess from how you depicked it hope it helps :top: