Car issue - over revving when changing gear

[DrDonnyBrago]

Mk1 Ford focus 1.8 petrol, year 2000, 55k miles.

Right, annoying thing the car does when accelerating is that when you press the clutch to change up, the engine continues to rev for a bit. It's like the accelerator is being depressed for a fraction of a second longer than it actually is. Letting off the accelerator earlier before depressing clutch and it doesn't happen, just dipping the clutch without accelerating and it doesn't happen.

It also occasionally stalls immediately after starting on some cold days, but starts up fine the second time around. Not sure if these are related.



It's more annoying than anything, also makes smooth and fast gear changes tricky as it blips the throttle on upshifts .

Checked for leaking inlet by spraying stuff around it, didn't pick up. Was thinking perhaps a sticking throttle body/accelerator mechanism but thought to ask first in case anyone has seen similar.

[lukamon]

Try taking the throttle body out and cleaning all the black gunk / shit out of it with petrol / carb cleaner
____________________
killa wrote: Im an ass man myself

[Aff]

Think it's a common problem, guy I used to work with had it and was fully solved when we gave the butterfly valve a good clean.
____________________
Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[P.]

Butterfly valve and check the MAF sensor

[DrDonnyBrago]

Cheers chums .

[MarkJ]

I've had this on a few cars, including two brand new ones, I thought it was just a case of "they all do that, sir". I thought it was probably something to do with how modern cars are set up for emissions or something.

[stuarthouston]

Also check the clutch position switch which sits above the clutch pedal hasn't come out of its mount. This happened on my 1998 Fiesta and caused similar issues.

[Acemastr]

Throttle position sensors often go in these.
____________________
2017 KTM 350 XC-F - 2014 Yamaha R6 - 2005 Yamaha YZ125
2016 Toyota Tacoma Limited

[DrDonnyBrago]

[Aff]

Surely you can just check the throttle response in neutral?
____________________
Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[Chalky.]

Idle Control Valve is a common problem on these, it's located on the front of the engine.

Clean with carb cleaner.

[i.p.phrealy]

Check the vacuum pipes behind the inlet manifold, common problem on these engines, they cannot be got to without dropping the inlet manifold off first but chances are one of them is split. this is what happened with my Mondeo, and as the split gets bigger your idle speed will start to creep up. it's a £20 pipe, but a 3 hour job to do at a garage.
however, get it sorted because it will bugger your clutch up. my clutch gave up at 67k in the end.
____________________
it is impossible to lick your own elbow...
and if you just tried you need professional help.
Finally allowed a big bike 19/03/14!

[geordiecbrblo...]