Ford Puma Erratic Idling

Honest John Back Room » The Back Room Archive
What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
View Threaded
Fri 14 Sep 2001 09:30
Ford Puma Erratic Idling - Charles
My Puma has developed a strange fault.

When the engine revs are decreasing to tickover and your foot is on the clutch the revs stay at about 1500 RPM and the engine revs erratically. It's not a misfire. It is as if something is increasing the engine speed intermittently.

This symptom lasts for about 5 to 10 seconds and then everything settles down to normal.

The car runs perfectly if the clutch pedal is not depressed. Weird!!

Any clues as to whats up with it anyone??
Reply | Report as offensive | Link
Fri 14 Sep 2001 10:06
Re: Ford Puma Erratic Idling - Piers
Might be something to do with emmisions control. The ECU controls the engine speed and may be acting to minimise nasty stuff coming out of the exhaust. Clutch pedal up will put a load on the engine - even if only G/box.

I know on the K-series rover engine you can reset the idle control motor when it goes potty. Might be a similar function for the Ford engines?

Piers
Reply | Report as offensive | Link
Fri 14 Sep 2001 14:12
Re: Ford Puma Erratic Idling - Charles
Piers
I've discovered there's a switch linked to the ECU at the top of the clutch pedal. Maybe thats on the blink??
Many thanks for your suggestions anyway.

Charles
Reply | Report as offensive | Link

Looking for a garage you can trust? Honest John's Good Garage Guide has thousands of reader recommended garages, plus how-to guides and tips on servicing.

The Good Garage Guide