car reving by it self

deafroadrunner

hey i got a problem with the car and i haven't a clue whats wrong. i could be driving along slowly or sitting at traffic lights and the next thing the engine will start reving by it self, the only way to stop it is if you rev it past 5000rpms. its a saxo 1.1i 99. on 50000 on clock an this is the true millage as the car has been in family since brought.

stevenmu

How high will it rev on it's own. If it's around 1200 to 1500 it could be a faulty temperature sensor, the engine thinks it's cold so it runs rich.

Rick Deckard

stevenmu wrote: »

How high will it rev on it's own. If it's around 1200 to 1500 it could be a faulty temperature sensor, the engine thinks it's cold so it runs rich.

i had a similar problem with my old car, would only happen in heavy traffic, and it turned out to be the temp sensor.. cheap fix.

deafroadrunner

its sound to be near 3000 bt it like pushing the throttle in for a second then letting off. as for engine being cold i had driven 3 hours this morning an it was stil doing it.

deafroadrunner

i was being told by sum people that it could be an air intake problem. like a hole in pipe sumwher

Rick Deckard

deafroadrunner wrote: »

its sound to be near 3000 bt it like pushing the throttle in for a second then letting off. as for engine being cold i had driven 3 hours this morning an it was stil doing it.

it wasn't that the engine was cold, but more it thought it was cold.. so ran the revs to warm it up in my case

CarMuppet

Crack in pipe between air flow meter (or MAF) and the throttle body housing. Out with the duct-tape!

deafroadrunner

peatcass wrote: »

it wasn't that the engine was cold, but more it thought it was cold.. so ran the revs to warm it up in my case

id do the same but would only work for 10 mins b4 problem is bk again

-Chris-

Hi deafroadrunner,

Can you drop the text speak please? It's against the Charter.

Thanks

deafroadrunner

left the car in with citreon. they told me its a motor thats causing the revs to go up. part along is 240. sickener!!

Rick Deckard

deafroadrunner wrote: »

left the car in with citreon. they told me its a motor thats causing the revs to go up. part along is 240. sickener!!

240 to fix a 99 saxo? money might be better spent saving for a new car, use the saxo as a trade in, sold as seen..

deafroadrunner

na there only 50000 on clock with year nct left. its a stepper motor that was gone

metzengerstein

hiya
before you go spending big money try this ,

my girlfrends car did this ,so i changed the spark plugs and discovered she had no oil in the car so put oil in and cleaned the throttle body ,car has stopped over revving .garages will tell you anything to get a few bucks ,when its probably an easy fix .

its like these places that make dentures they tell people not to superglue when they break ,but they superglue them to fix them and charge a fortune

deafroadrunner

metzengerstein wrote: »

hiya
before you go spending big money try this ,

my girlfrends car did this ,so i changed the spark plugs and discovered she had no oil in the car so put oil in and cleaned the throttle body ,car has stopped over revving .garages will tell you anything to get a few bucks ,when its probably an easy fix .

its like these places that make dentures they tell people not to superglue when they break ,but they superglue them to fix them and charge a fortune

ive already given the money to the garage to cover the parts. but its funny ya should mention the no oil thing coz i discovered dis morning that was no oil in the engine.

metzengerstein

if they havent done the work go rescue it ,i reckon youve just been robbed