G-STowner
10+ Year Contributor
- 36
- 0
- Apr 17, 2012
-
East Bethel,
Minnesota
I have a 95 gst and a very loud ticking noise coming from under my valve cover or behind it by my intake manifold. It is so loud it is hard to pin point where it coming from and when I stick my head over the valve cover its loud but when I stick my head over the manifold its even louder but then again the hood is a lot closer and the sound is probably bouncing off that making it louder. I fixed a boost problem today( person before me had the wastegate line hooked up to the cold air intake so I hooked up my MBC and used the ic as the boost source and it boosted fine) Also a week ago I changed the timing belt, oil, oil filter, water pump. and a couple other little maintenance things. (cleaned some,fixed a motor mount, cleaned up some wiring and tightened stuff up)
Things wrong with my car: the EBAY greddy type s BOV is broke. (the diaphragm for sure) I figured this out today while working on it. My car had really weird idling and so what I did was I followed the line from my BOV ( the one that connects to the top of the intake manifold) and i pulled it out. pressed my finger over the nipple for awhile on the intake manifold (which sucks in air). My car idled really good. plugged the line back in( idled crappy). put my finger over it (idled good). So then i sucked on that tube connecting to my BOV. I could breath through it. then I hooked up a hose to the bottom nipple( which is there to help open the diaphragm so you hook it up to a boost source). well as I blew on it the air came out the top nipple. so its definitely broke.
My car is also running lean.
THE TICKING NOISE: When I bought the car there was a small ticking noise. but today after driving it a couple miles down the road and back, I noticed how loud it was. this ticking is super loud. it sounds like someone is banging on my valve cover with a hammer. As I was driving I could here it....but then it would totally go away.. then come back.. It wouldn't come back or go away depending what my rpms were. it just ticked and then randomly it would stop. I drove it up my drive way and opened the hood and it was loud. Then waited awhile till the rain stopped and went back out and started it up and It just ticks like crazy and sometimes stops for a second. Nothing seemed wrong when I was driving though. It performed really good.
MODS: injen intake, evo 3 16g knock off(running wastegate pressure), hard ic pipe, narrowband, boost gauge,MBC, type s knock off BOV, turbo timer.
Here is the sound clip on youtube.... you will notice after 9 seconds it sounds like my sound is cutting out but its not. that is the tick sound stopping for a second. when I was driving, it would cut out for a full 30 seconds or so at a time. but my sound clip only captured it cutting out for a quick second. ticknoise 0001 - YouTube
Please help me figure out what this sound is. My plan was to take off the valve cover but im going back to school for one more week. so I thought I would get some advice before I dive into it. THANKS!
Things wrong with my car: the EBAY greddy type s BOV is broke. (the diaphragm for sure) I figured this out today while working on it. My car had really weird idling and so what I did was I followed the line from my BOV ( the one that connects to the top of the intake manifold) and i pulled it out. pressed my finger over the nipple for awhile on the intake manifold (which sucks in air). My car idled really good. plugged the line back in( idled crappy). put my finger over it (idled good). So then i sucked on that tube connecting to my BOV. I could breath through it. then I hooked up a hose to the bottom nipple( which is there to help open the diaphragm so you hook it up to a boost source). well as I blew on it the air came out the top nipple. so its definitely broke.
My car is also running lean.
THE TICKING NOISE: When I bought the car there was a small ticking noise. but today after driving it a couple miles down the road and back, I noticed how loud it was. this ticking is super loud. it sounds like someone is banging on my valve cover with a hammer. As I was driving I could here it....but then it would totally go away.. then come back.. It wouldn't come back or go away depending what my rpms were. it just ticked and then randomly it would stop. I drove it up my drive way and opened the hood and it was loud. Then waited awhile till the rain stopped and went back out and started it up and It just ticks like crazy and sometimes stops for a second. Nothing seemed wrong when I was driving though. It performed really good.
MODS: injen intake, evo 3 16g knock off(running wastegate pressure), hard ic pipe, narrowband, boost gauge,MBC, type s knock off BOV, turbo timer.
Here is the sound clip on youtube.... you will notice after 9 seconds it sounds like my sound is cutting out but its not. that is the tick sound stopping for a second. when I was driving, it would cut out for a full 30 seconds or so at a time. but my sound clip only captured it cutting out for a quick second. ticknoise 0001 - YouTube
Please help me figure out what this sound is. My plan was to take off the valve cover but im going back to school for one more week. so I thought I would get some advice before I dive into it. THANKS!




So if you are driving and having this pre-detonation, you are on the verge of messing something up pretty bad.