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Discussion Starter · #1 ·
Hi, im 17 and just had my first car a couple of weeks ago. The past week the oil warning light has been coming on at low speeds after having been out for around 30mins. Flashing when in first or second gear going slowly, it was ok at higher speeds of 30-40 but yesterday it was foing the same thing thoighout the journey after about 30mins no matter what speed. I replaced the oil pressure switch and it hasnt changed. There is a small leak, cant see where from, ive been told the most likely cause is a bad oil pump which will need replacing? However they also said it could be the oil filter being clogged up? Anyone know if this sounds right? And wgat sort of price im looking at? Also about 30 mins after driving a rattleing comes from under the bonnet, i presume this is the timing belt as there is no oil getting to it?

Its a 1.0 corsa club 2002 by the way

Any help would be muh appreciated also sorry about spelling, typeing on a small phone isnt the best...

Thanks :D
 

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You need to stop driving the car until this is investigates properly.

Have you checked oil level (sounds obvious I know)
When did you last properly service it?
 

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As said above, DO NOT drive the car until the problem is sorted - You may well ruin an otherwise perfectly good engine if you do continue to drive it.

It MIGHT just be a case of it needing a good service, especially the oil and filter changing - In fact, if you don't know the service history of this car,that would be a good place to start.

If you do decide to service it yourself, you would be well advised to buy a genuine GM oil filter (and some good quality oil).

You may also wish to fit (either as a temporary measure, or as a permanent fixture) an oil pressure gauge, if you wanted this to be permanent, you would also need a 'T' piece, in order that you can retain the existing oil pressure switch as well as the gauge.

Regards.
 

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Discussion Starter · #4 ·
Garage rang today, couldnt change the oil filter because metal shavings in the oil, looking as if its a very very poorly car. Also previous owner has done some very bad welding in the engine... going to a engine specialist tomorrow to take apart and diagnose... it looks asif mr car salesman cleaned the engine to cover up quite big engine problems.... i think better start looking for reconditioned engine to be honest.... only had it a month and just paid 1500 in insurance. Feel like crying.
 

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Don't understand why he couldn't still
Change the filter.. And flashed through system..
It more than likely has metal
Shavins as you've been driving it, causing metal to not be lubrixated... I bet you drive it to the garage too..
 

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Discussion Starter · #6 ·
He said there was no point cos it was nore likely to be a bad pump rather than filter, and i have veen driving it but only because i was advised by another mechanic that it was prob just pressure switch playing up and would be fine... yeah that didnt work out well... i know nothing about cars so i was going on what i had been told
 

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usually low oil pressure is caused by worn out bearings, not the pump. id say your engines toast.
 

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Your garage is correct, if there is bearing metal in the oil, then changing the oil and filter is a total waste of time.

BE VERY CAREFUL WITH PEOPLE WHO CLAIM TO BE 'ENGINE SPECIALISTS' (or gearbox specialists, for that matter!!)

There are some genuine people out there, but I am afraid that there are also a lot of cowboys, quoting you a price for a job and then charging you for 'extras' or telling you that the quote was based on an engine in 'average' condition - but then telling you that your engine was beyond economical repair - This matters, because even if they sell you a reconditioned engine, they still need to be able to recondition your old one, in order to sell it on to the next customer.

try and use someone who has been recommended to you by a previous customer and don't take too much notice of web-site 'reviews' - not all of these are from genuine customers.

If you tell us where you are, maybe someone on here can recommend a company to you.

Regards.
 

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Discussion Starter · #10 ·
I have been recommeded this person by local council so hopefully will be ok. He had a look today and timing chain guard has completely worn, timing chain has gone through the cover which im presuming would explain why the engine was so noisy, he has replaced the guard but it is still noisy so he is going to replace the chain tomorrow. Would the tining chain issues explain the metal in the oil and the oil warning light coming on as described above at start of forum? Also ive asked him to check out the oil pump...
 

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Discussion Starter · #11 ·
Ok, so turns out, the timing chain was really loose, it broke through the cover, and guard? In the process it knocked out 2 bolts, this is how metal got in the oil, also the sump was clogged up which is why the oil warning light came on... the mechanic has replaced the chain and the guard/cover, he has also replaced the bolts and unclogged the sump. He said that in 500-1000 miles it will need another oil and filter change because there will still be metal in the system. At least it wasnt as bad as i feared it could have been! Getting it back tomorrow, hopefully its all sorted now! Fingers crossed :D thanks for all the advice/help
 

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Glad to hear that this is not going to cost you a new engine.
I obviously misunderstood when you said ,"Metal in the sump". I was reading this as bearing metal, probably due to the noise that you spoke about.

This is another example of how difficult it is to diagnose 'noises' without actually hearing them.

That is good advice to change the oil and filter again in a little while, as it is almost impossible to get rid of all the bits of metal in one go. In any case, with your engine it is a good investment to change the oil and filter at about 5,000 miles, particularly if you only make short journeys.

For future reference, it always pays to stop the engine and investigate IMMEDIATELY when you hear 'expensive' noises.

Regards.
 
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