hello, i need some help trying to figure out why my car makes a ticking noise after it warms up. heres some background
91 4cyl lx 5spd with 120k. i just put this car back in action after sitting for 2+years, when i drive the car at about 2500 rpm(+/-) it starts to make a slight ticking/tapping noise(not detenation) it doesnt seem to affect performance but i gave it an oil change cause noone likes to use 2year old oil. the oil i used was full-sythetic 5w-30 and at first it seemed all good, but a few days later the noise returned. is it possible the noise could be caused by me useing thinner than rec. oil,use of synthetic or from sludge working its way out? i dont feel theres anything mechanically wrong (checked waterpump, alt and pullies for rubbing/skiping, havent pulled valve cover yet). any ideas or suggestions, i just need some input before i pull the valve cover and look for broken stuff. thanks
91 4cyl lx 5spd with 120k. i just put this car back in action after sitting for 2+years, when i drive the car at about 2500 rpm(+/-) it starts to make a slight ticking/tapping noise(not detenation) it doesnt seem to affect performance but i gave it an oil change cause noone likes to use 2year old oil. the oil i used was full-sythetic 5w-30 and at first it seemed all good, but a few days later the noise returned. is it possible the noise could be caused by me useing thinner than rec. oil,use of synthetic or from sludge working its way out? i dont feel theres anything mechanically wrong (checked waterpump, alt and pullies for rubbing/skiping, havent pulled valve cover yet). any ideas or suggestions, i just need some input before i pull the valve cover and look for broken stuff. thanks