Engine rattle

[Mcdubber1 0]

Hey guys,

I've recently been getting a rattle from my engine on cold start up which doesn't sound great at all. I wouldn't say it is the chains, it sounds more like the engine is starved of oil the first couple of seconds on start up and dissapears within a second or two of firing up. It's pretty loud and it makes me cringe everytime i hear it so would like to get it sorted asap.

Could it be the oil pump or maybe some sort of sensor needing cleaned or replaced or could it be something much worse?

Thanks

[p0u1 14]

starter motor sticking?

[Mcdubber1 0]

I don't think so, i'd say it's definetly a noise from the engine itself but thanks for your input.

[ashmk3 0]

i would say its your lifters

[Mcdubber1 0]

Could be the lifters. I take it the only way to sort this is by replacing them?

Providing it is the lifters what could have caused their failure?

I've never heard of lifter failure on a vr6 before is it fairly uncommon?

[legvw 0]

How many miles has your engine done?

I've heard of oil pumps becoming 'weaker', and causing top end noise on start up.

[Mcdubber1 0]

It's done 116k.

The oil pump was one of my first thoughts because it's like the engine is starved of oil for the first few seconds.

Any ideahow much a new oil pump is?

[legvw 0]

I bought mine from euro car parts a few years back. Think it was about 90.

[craggsy 91]

I have a brand new genuine oil pump at home that is for sale. Need to find receipt to work out a price tho

[CALICO 130]

oil flush can help with sticky / noisy lifters

[Mcdubber1 0]

I have a brand new genuine oil pump at home that is for sale. Need to find receipt to work out a price tho

Once you work out a price let me know please. i'll need to get a bit more advice first though from my mate (he's a mechanic) to see if he thinks it's the pump before i was to but though. I don't want to buy it then find out it's not the pump.

[craggsy 91]

Well its gonna take me a few days to find the receipt

[Mcdubber1 0]

oil flush can help with sticky / noisy lifters

I flushed the engine on the last oil change which was about 5k ago and i just changed the oil again last week. Over flushing can cause damage i believe so i didn't do it this time around and don't plan doing it again in the future.

[Mcdubber1 0]

Well its gonna take me a few days to find the receipt

No probs mate i'm not in a massive rush, the car doesn't get used much at all just now.

[shail 0]

I get that on cold days too. I just put it down to the oil being that much thicker on colder days, taking a little longer to get to the top of the engine.

[jasonoldy69 1]

It's done 116k.

The oil pump was one of my first thoughts because it's like the engine is starved of oil for the first few seconds.

Any ideahow much a new oil pump is?

I got the same mileage as you and sounds rough for the first minute or so. Never thought anything of it, just thought it was down to age.