nasher

The motor is the 1.8 litre EFI. 55,000 miles all done on Guernsey where the max speed is 35 mph. On the rare occasion I hit 60 mph, it is only for about 60 seconds at most. 4th gear is largely uncharted territory. 5th gear would probobly get me arrested and licence taken away for 3 yrs.
I think this idle problem has been discussed previously. I've cleaned out the throttle body, replaced a faulty temperature sensor. I've read about the Idle Control Sensor perhaps needing replacing.
Where in the engine bay will I find this part?
It is easy to replace if I get a new one?
Roughly how much should it cost.
Can anyone recommend a book that would shed some light on what's what i under the hood? The owners manual is fairly useless in this regard.

I would greatly appreciate any assistance with this problem.

Thank you in advance.

Regards, Nasher.

Big Block Ford

Hi nasher and welcome. Though I haven't worked on the xR3i in general the idle sensor or the throttle control valve are near the throttle mechanism or the unit that the cable is hooked to.Sorry I can't be more specific.

Is the idle erratic or does it not idle at all.


As for workshop manuals I think Haynes make a large number of manuals which are fairly comprehensive.

Funny as it seems but I am having trouble like this with my Subaru so will be going through the same things. Clean throttle body and check Throttle position sensor. eek

__________________
Lance
71 429SCJ Mustang

nasher

The idle is fine when cold. It gets erratic after about 10-15 minutes running. By the time I've finished my journey, usually 20mins after start, the idle wavers roughly and frequently stalls.
My first thought was just to increase the idle to 1100 or 1200 RPM. I can't figure out how to do this.
I'd expected to be able to make a simple adjustment with a screwdriver. Is it really so complicated?
Three visits to a very honest mechanic have solved nothing.
Thank you for your response. Good luck with the Subu.

Fordtech.

If there are no other running concerns, sounds like the idle speed control valve (I take it it's the Zetec engine); this is located in the inlet manifold under the throttle housing, four 7mm bolts hold it on- pull off the multiplug, remove the valve, then take out the 2 screws holding the solenoid to the housing and give the whole lot a good clean out. Manual adjustment of the base idle is rarely necessary, the valve works fine ordinarily. Finally, some WD40 on the moving parts should sort it.