Worse than Fuel Pump Hissing Sound?
#1
Worse than Fuel Pump Hissing Sound?
I don't think it's the fuel pump since it's in the engine bay. Most fuel pump hissing sound are in the back seat or rear side, right? This one seems pretty bad but I was still able to track my car without my engine going crazy or anything. I just drained the RRRacing Air and Oil Separator 2 hours prior and I just got Air Cup Coilovers 2-3 days ago. I don't know what's wrong.
https://www.youtube.com/watch?v=j3yZ_Cf_EZo&feature=youtu.be
UPDATE:
Thanks guys for your feedbacks. I removed and retighten my AOS: Finger Tight and Wrench Tight. But it's still Vacuum Air Leaking. So, I covered it with tape TEMPORARILY. Sigh~
Air and Oil Separator Air Leak - YouTube
UPDATE 1.2:
Thanks! Sorry for my noobness guys. I really thought it was closed on that position since when I extended it Oil came out. So, I was thinking to put it back in to close it.
https://www.youtube.com/watch?v=j3yZ_Cf_EZo&feature=youtu.be
UPDATE:
Thanks guys for your feedbacks. I removed and retighten my AOS: Finger Tight and Wrench Tight. But it's still Vacuum Air Leaking. So, I covered it with tape TEMPORARILY. Sigh~
Air and Oil Separator Air Leak - YouTube
UPDATE 1.2:
Thanks! Sorry for my noobness guys. I really thought it was closed on that position since when I extended it Oil came out. So, I was thinking to put it back in to close it.
Last edited by ba2sy; 10-03-16 at 06:13 PM.
#4
Lead Lap
I doubt that is your issue.
#5
Lexus Test Driver
Faud
it def sounds like vacuum leak.
Its not lines from your cup kit right?
Did you find any loose vacuum hose or a nipple where the hose would attach but is broken off/cracked?
Bad PCV?
it def sounds like vacuum leak.
Its not lines from your cup kit right?
Did you find any loose vacuum hose or a nipple where the hose would attach but is broken off/cracked?
Bad PCV?
#6
I had a hissing sound like that in my daughter's car - drove me nuts!! I COULD NOT find it!
Broke down and took it to my mechanic. He used a stethoscope
http://www.harborfreight.com/mechani...ope-69913.html
And a brush with kid's SOAP BUBBLE solution. Turned out it was the intake manifold. Her's was also throwing a Check Engine light however.
Those can be a pain to find...
Broke down and took it to my mechanic. He used a stethoscope
http://www.harborfreight.com/mechani...ope-69913.html
And a brush with kid's SOAP BUBBLE solution. Turned out it was the intake manifold. Her's was also throwing a Check Engine light however.
Those can be a pain to find...
#7
Lexus Test Driver
An exhaust/manifold leak wouldn't be that loud/dramatic, or at least the ones I've encountered wasn't.
The sound from video was loud and prominent. Still think its vacuum/crank case pressure related.
Does the car run right?
No CEL codes?
The sound from video was loud and prominent. Still think its vacuum/crank case pressure related.
Does the car run right?
No CEL codes?
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#8
^^^This^^^sounds like a vacuum leak to me. Also check line attachments, hoses, water
Pump for leaks, and your AC.
Last edited by ISF001; 10-03-16 at 05:02 PM.
#9
Thanks guys for your feedbacks. I removed and retighten my AOS: Finger Tight and Wrench Tight. But it's still Vacuum Air Leaking. So, I covered it with tape TEMPORARILY. Sigh~
Air and Oil Separator Air Leak - YouTube
I use stethoscopes at my job and using one on these will make me go deaf. Lol!
Afte a while there's CEL plus TRAC OFF lights up... I'm like sheeet... Not when I'm about to track...
Air Cup still okay since it's still very new. I asked Platinum.
Oil actually came out when I twisted the end open then close 2 hours prior to heading to track site.
Air and Oil Separator Air Leak - YouTube
I had a hissing sound like that in my daughter's car - drove me nuts!! I COULD NOT find it!
Broke down and took it to my mechanic. He used a stethoscope
http://www.harborfreight.com/mechani...ope-69913.html
And a brush with kid's SOAP BUBBLE solution. Turned out it was the intake manifold. Her's was also throwing a Check Engine light however.
Those can be a pain to find...
Broke down and took it to my mechanic. He used a stethoscope
http://www.harborfreight.com/mechani...ope-69913.html
And a brush with kid's SOAP BUBBLE solution. Turned out it was the intake manifold. Her's was also throwing a Check Engine light however.
Those can be a pain to find...
Oil actually came out when I twisted the end open then close 2 hours prior to heading to track site.
Last edited by ba2sy; 10-03-16 at 05:49 PM.
#12
Lead Lap
So you say that is where the leak is coming from?
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