Leepey74

Howdo peeps!

Slightly concerned!!

My 97 P UKT has started to rattle/knock slightly after its warmed up and tick over drops realy low when i pull up to lights.

I know some classic scoobs suffer from piston slap when started from cold, mine does but its not to bad in fairness.

Now this is the 1st Impreza ive owned so im not sure if im worrying about nothing.

Its due a service in the next 800 miles or so, ive checked oil, water, gearbox fluids and they are all good. (in fairness it dont seem to use anything)

The check engine light also comes on from time to time, but what i do it put the clutch down, its goes low on tick over but the warning light goes off......confused! Any ideas??

Any info would be great

Cheers

Lee

Jamz_

iTrader: (12)

Sorry to say this but your big end may have gone.... engine rebuild time

Leepey74

Oh! thought it might be a biggy! with only 86k on aswell!!

Any ideas of what this is looking to cost?

Leepey74

Plus this is only a slight knock, will this cause any problems while driving the car?

i.e loss of power, boost, any probs i should keep an eye out for??

And if it the big end, is it saveable before it goes?

Sorry for all the questions

Jamz_

iTrader: (12)

The big end bearing will need to be replaced, which means the whole engine will need to be taken appart...

The longer you leave it, the more damage will happen...

Just think, a piston is only supposed to go up and down, but with a broken bearing, it may be trying to go up and down at all sorts of different angled.

It doesnt really matter how many miles the car has on, its all about how the engine is treated... trashed when the oil hasnt warmed up properly... over heating... loads of things can cause it to go.

Your best to get it checked out by a Scooby mechanic before it gets worse, then it will cost even more!

Im not sure on what costs are on an engine rebuild though

Leepey74

cheers guys! ill get it checked out this weekend

wrx fifer

iTrader: (34)

if it is that you be cheaper buying a decent second hand engine than rebuilding it lets be honest there ten a penny out there!

Leepey74

I know matey, but a very good mate of mine has done that twice and been screwed over both times.

But defo another option to look at

dean_gti

£1000+ id rather buy an secondhand engine at £600 and chance it tbh.

New_scooby_04

iTrader: (4)

Woah....Might not be the big ends yet, could be something much less sinister: e.g. some people have found that the turbo heatshield gets loose and starts to make a rattling sound at certain RPM.

You need to get to a specialist who knows what they're doing and won't just assume the worst and sting you for a build you might not need. Suggest you speak to someone like David at APi as a matter of urgency mate.

CEL lights should always be investigated. Keep the car off boost until this is sorted.

Hope for the best, prepare for the worse

Ns04

dj219957

dont assume big ends straight away. could be cam belt tensioner or similar.

dj219957

new scooby 04 beat me to it^

agree, my heatsheild rattled only at 3000rpm untill i put some of penny washers in it where it had split.

alternator might be noisey etc etc

wrx fifer

iTrader: (34)

yeah to be honest my wifes classic turbo done same thing loud rattling/banging and she was worried lol thought big end it was the tensioner bearing from cam belt that was knacked job done but very loud!! i would check it first!!! i was only saying bout the engine if it is big end

Hobstar82

You need to know the difference between a knock from the inside of an engine to a rattle on the outside. Completely different sound! If your not sure get a good mechanic to have a listen, not a cowboy who's gonna sting ya lots a $$$$ for something fake which in fact only took 10 minutes to fix and 10 days sitting at the bottom of his workshop collecting dust!!

sy.

iTrader: (8)

i wish i could diag a big end fail form my keyboard go with NS04's advise me thinks

New_scooby_04

iTrader: (4)

Aww sh*t we've jinxed it now!!!

Cam belt tensioner was an even better suggestion than mine!

Leepey74

Cheers boys this help is very much apreciated

My Dad drove it 2nite and he said he dont think its big end, something else but nothing as drastic as that.

He's speaking to his mechanic for me 2moro to see wot they think it could be and is going to book it in asap.

But as i said, cheers for this its a great help

scoobian

could be a lazy cam follower maybe?
mine gets a bit tappy from time to time - seems to be sorted by dipping the clutch to let idle for a mo as we drive

hope its summat simple for you, chum

scooby_me

iTrader: (1)

can you post up a audio/video clip of said noise? would possibly help with our keyboard diagnostic machine :-)

Leepey74

Ill see what i can do bud.

Its actualy not happened today!?

Drove to work perfect and no knocking from anywhere!?! lol!

Think she's testing me lol

scooby_me

iTrader: (1)

i had one simmilar, it would knock some day`s,and some it would be fine.

But it got worse! MUCH WORSE!

YouTube - when impreza bite back and go all tank like