ok heres the low down.
1990 olds toronado vin c 3800. i bought from original owner who was to old to drive with 90k last season. its like a new car.
I have it up ta 110k now and I keep it tuned up and it wont let you go a day without missin an oil change.
here is the prob. once I get home from a drive on the freeway I stop while the car is still in drive and it idles down to around 625rpms it makes this dunk dunk dunk noise that can be heard well from inside the cabin but i was only able to hear it on the pass side while outside under the hood. I have replaced the crank pully and h20 pump so thats not an issue. from what the readout says the oil pressure is fine and the car can move out like a bat outta h*ll! but this noise bothers me.
maybe the oil pump? or worse like bearings or rods??
well for any advice.