HELP! Really loud clicking noise after Overboost CEL..
Originally Posted by djskyy
I did a search, but came up with nothing useful...Anyways, I took out my EBC and decided to put in my MBC as replacement...I was trying to set it at 20psi, when all of a sudden...it shot up to 30psi....A loud boom "fuel/boost cut" and a CEL came on...& the car started to click really loud...on idle, it clicks and when I accelerate, the clicks get louder/faster....I doubled check the I/C pipes, but they were all good...It sounds like it's coming from the head/block....I highly doubt it's lifter tick/fuel injectors...Any suggestions on what this might be?
I will post a video in the evening....and I'll try to do a compression test....
I will post a video in the evening....and I'll try to do a compression test....
Rod Knock?
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Joined: Dec 2005
Posts: 459
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From: GA
u need a new crank.
maybe some damage on the pistons and rods.
boost cut/fuel cut doesn't go boom on evo's. It's rather pleasant.
I would check crank and transmission(specifically the clutch).
Had this happen to a friend. Sounds dead on.
maybe some damage on the pistons and rods.
boost cut/fuel cut doesn't go boom on evo's. It's rather pleasant.
I would check crank and transmission(specifically the clutch).
Had this happen to a friend. Sounds dead on.
Alright guys, thanks for the suggestions...anyways, I did a compression test a few minutes ago...
From passenger to drivers side...
#1 - 115psi <---bad one (after a little oil, it jumped up to 150psi)
#2 - 170psi
#3 - 173psi
#4 - 172psi
From the OEM manual, it states that if the compression increases after you add a little oil, it means that: "malfunction is a worn piston or damaged piston ring and/or cylinder inner surface"
Is this true then? piston gone bad? or it's a major rod knock?
HERE IS A 14-SEC CLIP OF THE VIDEO:
http://s23.yousendit.com/d.aspx?id=3...B2CKBO04M10RYQ
From passenger to drivers side...
#1 - 115psi <---bad one (after a little oil, it jumped up to 150psi)
#2 - 170psi
#3 - 173psi
#4 - 172psi
From the OEM manual, it states that if the compression increases after you add a little oil, it means that: "malfunction is a worn piston or damaged piston ring and/or cylinder inner surface"
Is this true then? piston gone bad? or it's a major rod knock?
HERE IS A 14-SEC CLIP OF THE VIDEO:
http://s23.yousendit.com/d.aspx?id=3...B2CKBO04M10RYQ
Last edited by djskyy; Jan 18, 2006 at 05:19 PM.
Originally Posted by .50 Cal Cow
if I might ask. was this a malfunction in the boost controller? or did you accidentally set it higher than you thought?
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Originally Posted by IEXCELR8
Time for a stroker, or built 2.0.
Sounds like a broken ring or as the rest have said crank,or bearing.What cel code was it?
Sounds like a broken ring or as the rest have said crank,or bearing.What cel code was it?
Originally Posted by djskyy
I'm pretty sure it was a malfunction...At first, it was set at 12-13psi....I pulled over and did a 1/4 turn on the MBC...took it for another run & BAMM, it happened....I didn't think a 1/4 turn would have such an effect on adding 15+psi....I tried to let off, but it was too late....
i do plan to get tuned as soon as the forge dv i have coming in gets put on.
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Joined: Dec 2005
Posts: 459
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From: GA
there isn't a cel code for blown engine.
stock ECU is good for 25 psi, which I figure what the engine could take for brief period + 1 or 2 psi.
so around 26psi on 93 psi is cutting it deadly close.
just take your car to a shop, take the valve cver out, check the crank and pistons...
I suggest stop driving the car all together, may cause transmission problem as well...
stock ECU is good for 25 psi, which I figure what the engine could take for brief period + 1 or 2 psi.
so around 26psi on 93 psi is cutting it deadly close.
just take your car to a shop, take the valve cver out, check the crank and pistons...
I suggest stop driving the car all together, may cause transmission problem as well...
Sounds to me like possible rod knock. You probably got alot of detonation, put alot of pressure on the bearings (messed up #1) , and broke a ring land. Hopefully it is none of this but you know how that goes. Good luck and let us know what you come up with. AMS is having a special on stroker kits so this might be up your alley.
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Joined: Jan 2006
Posts: 59
Likes: 1
From: San Diego
Man that sucks! I would be pist if something like that happened to me. I don't have money to just buy a stroker kit or for that matter time to spend on warranty claims. Just curious, what brand MBC were you using?
Originally Posted by GOKOU
Not good. I was hoping it was a loose coupler or something. Looks like the ECU couldn't pull timing or add fuel fast enough.
...probably upgrade to Ross/Eagle combo...I wish I can afford the oliver rods though...
