Strange sound when I remove Oil cap???
#1
Strange sound when I remove Oil cap???
Today, I opened the hood of my 4runner.
While it was running, I removed the oil cap, and the engine sound changed.
I cant really explain it, but it sounded different.
Should I be concerned?
I put the oil cap back on, and all was normal again..
But everytime I remove the oil cap while the engine is running, it makes a strange sound.
While it was running, I removed the oil cap, and the engine sound changed.
I cant really explain it, but it sounded different.
Should I be concerned?
I put the oil cap back on, and all was normal again..
But everytime I remove the oil cap while the engine is running, it makes a strange sound.
#5
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#9
heres the solution to your problem...
get a towel and fold it in half 2 times... place it on the wall of your house/apartment/shack/cardboard box... pound head against said rag 6 times as hard as you can (dont wanna chip the paint/stucco or smear the letter ink on the box)... replace oil cap... problem solved...
get a towel and fold it in half 2 times... place it on the wall of your house/apartment/shack/cardboard box... pound head against said rag 6 times as hard as you can (dont wanna chip the paint/stucco or smear the letter ink on the box)... replace oil cap... problem solved...
#12
Let me google that for you.
Check the first 1 down.
http://lmgtfy.com/?q=oil+cap+removed...vacuum+leak%3F
Check the first 1 down.
http://lmgtfy.com/?q=oil+cap+removed...vacuum+leak%3F
Last edited by jimig; Jul 16, 2009 at 11:22 AM.
#19
V-6 or 4 Cylinder?
Don't let these guys get to you, you just found the ultra Top Secret boost of power..Kind of like the blower fan turbo upgrade
When DC finds this he will merge it with the other thread
Don't let these guys get to you, you just found the ultra Top Secret boost of power..Kind of like the blower fan turbo upgrade

When DC finds this he will merge it with the other thread
Last edited by dropzone; Jul 12, 2009 at 09:15 AM.
#20
yeah the PCV "Positive Crankcase Ventilation" is null and void when you do this!
Pull the vacuum line off the PCV when the Engine is running do you hear the same change ???
well it is the same as pulling the oil fill cap! nothing wrong!!
Pull the vacuum line off the PCV when the Engine is running do you hear the same change ???
well it is the same as pulling the oil fill cap! nothing wrong!!






