Weird revving issue??

fonecrusher1

Brother's girlfriend has a 1.3 (not zetec) Ford Ka with a strange little problem.

She told me the engine was revving quite high when she had the clutch in & the car stopped or moving.
Anyway i took the car for a spin & sure enough when i got to the first stop sign, foot off accelerator pedal, foot down on clutch pedal, foot down on brake pedal, gear into neutral......engine revs increase up & up??? (foot nowhere near accelerator.)
Same thing happens when on the move - travelling on level road, foot of accelerator, clutch in.....rrraaaaarrrrrr???

Disengage clutch while stopped - engine idles normally.

Is this normal for a Ford Ka? I have no clue about fords!!

Any advice welcome.:)

Btw; checked clutch/brake fluid resevoir & its fine & all gears work fine.

R.O.R

I had a 96 Mondeo that did the same thing for a while. Sometimes it would idle around 4,000rpm for no reason.

Stopped doing eventually so I never bothered to get it looked at.

Sorry I can't be of any help.

si_guru

Could be...

1. Air intake leak
2. sticking throttle cable
3. temp sensor fault
4. Throttle position sensor.. try disconnectiong wire to test.

si_guru

It couls also be.. EEC fault.

Disconnect battery for 1 hour than reconnect to see if EES resets.

fonecrusher1

si_guru wrote: »

Could be...

1. Air intake leak
2. sticking throttle cable
3. temp sensor fault
4. Throttle position sensor.. try disconnectiong wire to test.

Checked throttle cable; seemed ok but i ain't a mechanic so there could be something wrong & i may not see it.

No.4 - where abouts is the TP sensor wire please??

Cheers S_G

Hope its not the ecu, the cars only worth a grand!!!

si_guru

This seems to explain it.

http://forums.preloved.co.uk/fuseaction-forums.showdiscussion/thread_id-35014/898138ab.html

..just try dosconnecting battery.. maybe reseting the EEC will help?

Tefral

Does it hunt up and down?

A split vaccum hose in my Focus caused the same problem, they are behind the intake manifold, ive helped a few people change theirs on the focus' too so it could be the same issue, spray them with a bit of wd40 and see if its spitting

fonecrusher1

cronin_j wrote: »

Does it hunt up and down?

A split vaccum hose in my Focus caused the same problem, they are behind the intake manifold, ive helped a few people change theirs on the focus' too so it could be the same issue, spray them with a bit of wd40 and see if its spitting

Howdy,

No, the engine rpms just go up & up mysteriously.

Jaysus lads it could be 1 of 4/5 different sensors or valves!?

Heres the plan; - disconnect battery/reconnect battery
- disconnect battery for an hour
- Unplug idle air control valve/replace
- clean idle air control valve

By the way im just getting info that the car has also been cutting out going round corners so it does look like its the IAC valve.

Thanks lads.:)

unkel

fonecrusher1 wrote: »

By the way im just getting info that the car has also been cutting out going round corners so it does look like its the IAC valve.

I was gonna suggest it might be dirt in the throttle body after reading your OP, but that might point to something else...

DubTony

si_guru wrote: »

It couls also be.. EEC fault.

Ah ya can't blame them for everything. And it's called the EU now

the merchant

If it's the same engine as the 97 1.3 pushrod fiesta, they're renound for throttle position sensors.

Midnight_EG

Have you tried cleaning the throttle body, it might be sticking?