help identify this noise! [vid inside]
#1
help identify this noise! [vid inside]
Ok so as most of you know I just got done putting a new head, cam, timing set, oil pump, water pump, ect on my 1990 4runner 22re. Since then I have noticed a noise, which I'm not sure if was there before the job or not because i bought it not running.
It only happens while the truck is moving, under acceleration, usually past 1/4 throttle. It doesn't happen if I coast, or if I stop or push the clutch in.
My girlfriends 22re (94 p/u) has the same exact noise. I always thought it was either odo or speedo cable but now I'm just not sure. Hopefully you guys can help me figure it out.
This video was taken on a flat highway in 5th gear. You hear the noise when i am on the gas, it disapears when I let off.
Turn your speakers up the vid is quiet.
http://www.youtube.com/watch?v=EtXCzVrRYsA
any thoughts?
It only happens while the truck is moving, under acceleration, usually past 1/4 throttle. It doesn't happen if I coast, or if I stop or push the clutch in.
My girlfriends 22re (94 p/u) has the same exact noise. I always thought it was either odo or speedo cable but now I'm just not sure. Hopefully you guys can help me figure it out.
This video was taken on a flat highway in 5th gear. You hear the noise when i am on the gas, it disapears when I let off.
Turn your speakers up the vid is quiet.
http://www.youtube.com/watch?v=EtXCzVrRYsA
any thoughts?
#2
Registered User
I had that exact same noise in my '91 Pickup. Although I never found out for sure what the noise was it was a general consensus that it was coming from the bell-housing of the transmission.
#4
The check engine light is only on because I have the fuel pump jumpered in the OBD port, so it's throwing a code. While the fuel pump wont run without it jumpered, it doesn't throw a code un-jumpered.
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#9
Registered User
mine (new rebuild less than 1000 miles) does this too although yours is louder, do you have headers? I think mine is either a ping or just simple header noise.
#10
nope, no headers. I didn't think it was a ping because it sounds much different than any other ping I have heard.
#11
Registered User
hmmm update if you figure it out, sounds real similar to the problem I have, but i got headers and carb. Which is more prone to ping since there is no knock sensors. Could be an exhaust leak too. But I think someone already mentioned that. Did you ever re-torque the exhaust manifold down after running it for a while?
Last edited by xxxtreme22r; 02-13-2010 at 08:36 PM.
#12
hmmm update if you figure it out, sounds real similar to the problem I have, but i got headers and carb. Which is more prone to ping since there is no knock sensors. Could be an exhaust leak too. But I think someone already mentioned that. Did you ever re-torque the exhaust manifold down after running it for a while?
I will try that tomorrow to try and eliminate that possibility. I just wanted to make sure it wasn't a heavy ping and damaging my poor old engine.
#13
Check the joints where the head pipe bolts to the manifold, and to the cat. Check also for dark sooty areas, those are usually dead giveaways.
You can also find a leak by pouring a little seafoam or ATF into the brake booster vacuum hose. The smoke from burning the oil will leak out of the hole.
#14
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Join Date: Feb 2010
Location: Tetonia Idaho
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I think it has something to do with an overload of fuel in the system mine does simlar when im pulling it hard and usualy at higher rpms it usually stops when i stop pushing it hard and slow down for awhile
#15
This.
Check the joints where the head pipe bolts to the manifold, and to the cat. Check also for dark sooty areas, those are usually dead giveaways.
You can also find a leak by pouring a little seafoam or ATF into the brake booster vacuum hose. The smoke from burning the oil will leak out of the hole.
Check the joints where the head pipe bolts to the manifold, and to the cat. Check also for dark sooty areas, those are usually dead giveaways.
You can also find a leak by pouring a little seafoam or ATF into the brake booster vacuum hose. The smoke from burning the oil will leak out of the hole.
#16
Registered User
I'm gonna have to re-torque mine again, especially if this solves it for you. I've tightened mine up twice already. the torque specs on these obiously dont mean anything and I put in the LCE header bolts when I did my rebuild.
#17
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