Revs dropping

This topic has 24 replies, 8 voices, and was last updated 5 months ago by Lucky_.

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August 2, 2023 at 7:16 PM #197908

Lucky_
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UK - Scotland

Posts: 417

Has anyone ever experienced this? Happened twice on start up now. Keeps doing it until I give it some light revs then it settles.

August 2, 2023 at 7:45 PM #197909

Pauly Paul
Participant

Posts: 1588

Could be spark plug issue , may need changing I’m no expert but sure someone will steer you in right direction.👍👍

August 2, 2023 at 8:49 PM #197910

Lucky_
Participant

UK - Scotland

Posts: 417

Got spark plugs fitted last November. Iridium 1 step colder one. The ones I always use.

Wouldn’t it lack in power if it was a spark plug?

August 2, 2023 at 9:28 PM #197911

Pauly Paul
Participant

Posts: 1588

Oh ok , low transmission fluids , worn out clutch pads , or could be as simple as dirty air filter ,I hope it’s not the later as many fords you have to get under the glove box and fiddle about trying to get it out from behind central console , But if it’s the later small price to pay just a bit fiddly. 🤞🤞👍👍

August 2, 2023 at 9:32 PM #197912

Pauly Paul
Participant

Posts: 1588

Sorry for confusion I meant air filter , & I’m sure you know how to check and change that , I was referring to cabin filter nothing to do with your initial problem, Sorry Lucky-. 👍👍

August 2, 2023 at 10:20 PM #197913

Lucky_
Participant

UK - Scotland

Posts: 417

I had to fit a new air filter last year too since Arnold Clark changed my mountune one to a normal one. New clutch kit fitted when the engine got rebuilt last October / November.

Hopefully get it booked in to check soon. I fear it is going to happen all the time since its happened 3 times in one day.

August 3, 2023 at 8:14 AM #197916
bobcat
Participant

UK - England

Posts: 11619
@Lucky_, change the fuel filter. If it not holding the revs but not really effecting the performance it could well be the answer.

Honorary Member
- This reply was modified 1 year, 3 months ago by bobcat.
August 3, 2023 at 9:12 AM #197919

turbo-tone
Participant

UK - England

Posts: 1567

You scanned for any stored fault codes?

Collins Cp2 map. Ramair induction. Mountune mud flaps. Scorpion Sports Cat. Scorpion Tracker. Wind deflectors. NB washer jets and shark fin aerial. EBC Grooved discs, YellowStuff pads. Airtec Intercooler, Miltek cat back with titanium tips. Collins quickshift. DSC Controller

August 3, 2023 at 11:46 AM #197928

Lucky_
Participant

UK - Scotland

Posts: 417

Don’t have a fault code reader. Might pop to Halfords since I get basic work done there and see if they can scan for codes or even replace the fuel filter as it’s not a big job. Unless the mountune handset can read faults? Never really used it.

I have said to myself to only get work done at AG Motorsport now but just a major hassle leaving my car there.

August 3, 2023 at 12:47 PM #197934

Lucky_
Participant

UK - Scotland

Posts: 417

Plugged the mountune headset in and shows code

P2195

O2 sensor signal biased/stuck lean. (bank1 sensor 1)

August 3, 2023 at 1:14 PM #197935

71-bda
Participant

UK - England

Posts: 9180

you sure all your intake hoses are tight, no air leaks ?

No nothing.

No Mods. No rockers. Just a chunky knob, thats now been replaced by an RS knob innit.

No tackiness.

Std as Ford intended, but with a space saver wheel and jack and nuts and wheel brace. oh.. and flaps, a man has got to have flaps.

Innit?

August 3, 2023 at 1:20 PM #197937

Lucky_
Participant

UK - Scotland

Posts: 417

Had a look , doesn’t sound like air is leaking out either. If there weren’t tight though would it not be constantly dropping?

Went my usual 12 mile round trip for petrol and did it on start up. Then did it again when I parked up after getting back.

August 3, 2023 at 2:06 PM #197941

turbo-tone
Participant

UK - England

Posts: 1567

Could just be a faulty sensor?

Collins Cp2 map. Ramair induction. Mountune mud flaps. Scorpion Sports Cat. Scorpion Tracker. Wind deflectors. NB washer jets and shark fin aerial. EBC Grooved discs, YellowStuff pads. Airtec Intercooler, Miltek cat back with titanium tips. Collins quickshift. DSC Controller

August 3, 2023 at 3:39 PM #197944

Lucky_
Participant

UK - Scotland

Posts: 417

Hopefully, will look to see if Halfords can maybe check it out if not will need to go to AG.

Is this OK to still drive about?

August 11, 2023 at 12:52 PM #198140

Lucky_
Participant

UK - Scotland

Posts: 417

Took it to AG this morning. It happened on start up again but never happened at all when the car was there 🤦🏽‍♂️.

The other day it was doing it while I was driving so cruising at 30 and the car felt like it was stalling every 3/4 seconds. Could feel the car almost stopping and starting again.

Really want to avoid taking it to Arnold Clark Ford.

Tried searching online and it could be a number if things but a lot are replacing certain sensors as they’re normally the cheaper option to try first. So might go that route.
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