Idle Problems

Can anyone give me a simple answer to to following: 1999 1.8 XEi. When I dip the clutch the revs do not drop back to idle speed, they remain at whatever level they were when the cluch was engaged, occassionaly they will begin to rise whilst the cluch is still engaged. This is an intermitent problem, but is becomming more regular. if I give the engine a hard rev it will normally clear the problem, but the driver in front at junctions does give a funny look in the mirror.

Hi AScott,

I don't know the set-up of the '99 1.8 engine, but if the gaspedal is linked to the carburettor with a cable it is possible that the returnspring is broken. (The spring that pulls the carburettor to the original idle position when you release the gaspedal), or else the cable has a couple of wires broken inside the housing and starts to get stuck in it.
Good luck.

Hi Ascott

Had a similar problem but with a Freelander Xdi (diesel). In my case I had to exchange the MAP (Mainfold Air Pressure) sensor.

Check your induction hoses, the ones that run from your airbox to the carb. One may have a split in it somewhere, this increases the airflow into the engine which causes the ECU to add more fuel to the excessive air, hence your revs rise.

Its a common problem with Fuel Injected cars when the hoses start to age.

Uneven idle speeds can be also caused by a faulty MAF sensor, again the is is connected on the induction before your carb, it will have a wiring plug going to it, remove it and clean it with brake cleaner but be carefull as they tend to be fragile.

The return spring for the throttle may be stuck but i doubt it with the explanation you gave.

Zippy

Hi the most common fault on the freelander is sticking throttle body old boddies were made of plastic and the buttefly sticks inside, the newer throttle bodies were made of aluminium to overcome this problem,take off inlet from air filter and have a look might be able to free off with wd40,i would try this first,tiga

I solved my idling speed problem by disconecting and reconecting the wire connection of the MAP (Mainfold Air Pressure) sensor while the engine was running. I have done it previously while the engine was off, with amble success.

Cheers Landy1998