STILL LOSSES POWER MY CAR 2

[corsab12v]

hi falks iam new to this site i have a corsa b 1.0 12v that seems to hold back at low speeds but wasnt showing a fault i put it in to vaxhall they ran the tests nothing wrong with it £45 to tell me this then the next day the light came on so it went back they said it was the throttle valve £105 to fix got it done but its still holding back the light is gone they tryed the airflow but its not that i phoned another gaadge they said the had a car with the same problem and it was the piston BIG MONEY his words what should i do next. ive read the other topic on still loses power but i dont want to keep paying for parts in the hope i find the fault did you find out what was wrong with your car olliejones8 .

[corsab12v]

ps my spelling is crap no mods to my car

[richardhhha]

what do you mean hold back?

do you mean it just doesnt rev or it does but just wont go with the urgancy it did before?

[corsab12v]

ist hard to explain its like a missfire but its not that. more like someone is pulling the hand break on and of fast the car feels like its getting draged back (you have to be in the car to understand)

[richardhhha]

hmmmm thats a strainge one.....

does it do it when driving or also when stationary?

[corsab12v]

only when you drive if you put your foot down its ok it happens at normal driving in town and going up hills when its sitting still it reves ok now as a new idle valve has been put on it .an airflow has been tryed and the coil pack has been ruled out it might be the crank sensor but i cant keep paying for parts hopeing i get the right bit.

[richardhhha]

i have hered that crank sensors are very comon on these and the 1.2 16v engines fortunatley they are fairly cheap 20 quid

when was the last time it had a full filter service?

and if you live nearish me i think it might be best me comming to ahve a look at it, could be something like the cat is getting blocked up or fuel filter is getting blocked.

[corsab12v]

not long done a full service on it did over fill it wth oil the twit iam but the level is ok now. Now you got me thinking is the filter on the right way i know it is but i better check the book. i live in fife scotland a bit of a run for you do you know where i can get the crank sencer from?

[corsab12v]

its ok i can get a senser here for £15 so ill try that next

[richardhhha]

let me know how it goes,

hope this solves your problem,

(i got to go buy a load of gaskets and see if my car stopps ratteling now lol)

[corsab12v]

hi have since found out that if i put the heater on full in car the problem goes away by 90% but it very hot in there has anyone got any help for me.

[richardhhha]

have you had a coolant change recently?

[corsab12v]

nope never done one it should be ok the colour is green the car never overheats if the temp goes up to 90 and i pull out from a juntion the car just stops driving. its like it stops dead then it picks up again and you take off its going to get me killed one day ive had a few close calls with other drivers as i dilver pizzas but now i dont leave it running so it wont heat up. the fan works ok it comes on when the temp is half way up.the car runs fine when its cold. after 5 min of running is when it starts but the temp never goes up to 90.

[corsab12v]

on second thoughts ive had the car 6 years now i dont think ive done it how much antifreeze should go in to a 1.0 ill have a look in the book.

[richardhhha]

the coolant system should have (aproximatly) 5.8 leters or 10.2 pints of coolant and antifreez 50/50 mix