S15_Spec_R
🔥 Contributing Member 🔥
I have done a search and not found what I am looking for regarding the above. I thought I had already asked about this but I cant find it. About 3 months ago I was getting a tick/rattle which under closer investigation looked like it could be the water pump impeller as the shaft had some play and I was loosing water.
Well I fixed that with a new pump, however the rattle is there now and again which leads me to it possibly being the above title. Sometimes it will rattle (sounds chain like) from cold start but after 15 seconds it goes. While rattling I have engaged the gears while stationary but no change.
The rattle then comes back when I least expect it and seems to be linked to oil pressure and temp. If the temp is 80cent oil and around 2bar pressure it sometimes rattles. I increase throttle and just under 3bar the noise goes away.
I have serviced the car regulary maybe too often (1500 miles) because what I thought was flat 3 years ago actually runs so I get oil retention in the sump and I think the oil cooler holds oil as it is thermostatically controlled. So for 3 years I have been putting engine flush in with every change and not getting all the oil out, which would explain why my oil would get dark after a few hundred miles.
I heard about a solenoid connection for checking the vvt but dont know what I'm looking at. Just could use some info as to diagnose as after reading some of the results on here maybe this rattle is causing bits of metal to get closer to killing the car. One thing I know is that oil pressure and its temp seem to be a major variable.
Sorry for the long entry but I dont like pulling up at lights or wherever low revs are with what sounds like a diesel!!! Thanks, K
Well I fixed that with a new pump, however the rattle is there now and again which leads me to it possibly being the above title. Sometimes it will rattle (sounds chain like) from cold start but after 15 seconds it goes. While rattling I have engaged the gears while stationary but no change.
The rattle then comes back when I least expect it and seems to be linked to oil pressure and temp. If the temp is 80cent oil and around 2bar pressure it sometimes rattles. I increase throttle and just under 3bar the noise goes away.
I have serviced the car regulary maybe too often (1500 miles) because what I thought was flat 3 years ago actually runs so I get oil retention in the sump and I think the oil cooler holds oil as it is thermostatically controlled. So for 3 years I have been putting engine flush in with every change and not getting all the oil out, which would explain why my oil would get dark after a few hundred miles.
I heard about a solenoid connection for checking the vvt but dont know what I'm looking at. Just could use some info as to diagnose as after reading some of the results on here maybe this rattle is causing bits of metal to get closer to killing the car. One thing I know is that oil pressure and its temp seem to be a major variable.
Sorry for the long entry but I dont like pulling up at lights or wherever low revs are with what sounds like a diesel!!! Thanks, K