flat spot on 172 need help

[172fast]

i've got a flat spot on my clio 172 2003 model also i've got a ticking coming from my car i thought maybe tappets dont know but been told carbon canister i've took the wheel arch liner out had a listen but dont seem to be that has anyone any ideas please

 

[edde]

Where the ticking sound comming from then?

Wheres the flat spot

What about service history?

 

[jph172]

Flat spot is quite common. Ihad one on mine between 3/4th where the car seemed completely lifeless.
Could get a remap, may get rid of it

 

[172fast]

it seems to be from manifold area i think and service history is good as for flat spot it seems to go flat then pick up well what do you think

 

[jph172]

Whereabouts are you in the country?

 

[Nigel]

I fitted a decat and had my inlets matched and I had a serious flat spot at 3000rpm to 3500rpm. Had it remapped and all is good for me!!

 

[edde]

Depends hwo bad it is all cars are different and all owners have different views of a flat stop significance.
Is it possibel for you to test another 172 see if its the same.

Also is the car due spark plug etc?

 

[172fast]

it could be due a tune/spark plugs but what could cause the ticking noise with it? ive had a listen by the carbo canister it dont seem to be that

 

[edde]

it could be due a tune/spark plugs but what could cause the ticking noise with it? ive had a listen by the carbo canister it dont seem to be that

Relays maybe. Laos throttle body does a bit.

 

[philmots]

All the engines are fairly tappety anyway, could be a tensioner or pulley in the timing area too? I had it on mine which lead to a broken tensioner! Thankfull it didn't take the belt out.

 

[172fast]

did yours do it from start up mines there all the time but it have come out of no where

 

[Gaz_]

it will be carbon cannistor if its more noticible at idle or low town speed

 

[172fast]

i took the wheel arch liner down and had a listen but it didnt sound like it was there i've had a listen and sounds like engine somewhere

 

[Gaz_]

Does it do what i said though? The noise will dissapear high up the rev range. Also do you have any kind of induction kit?

 

[172fast]

yes there is an induction kit on it it was on when i bought it also sounds like it goes higher revs

 

[Gaz_]

flat spot could be induction kit. If its a viper or an open type, they are poor. The viper on mine made it flat spot like a b*****d. If its an open type filter that'll be sucking in warm air. If its felt like this recently, it could be due to the warm weather.

 

[172fast]

what do you say the ticking could be tho

 

[172fast]

would you say its my lifters

 

[Fred@BTM]

a remap is a daft idea, you need to find out what the problem is first!

can't say without seeing/hearing the car