For those who think the whine upon cold start up is you air injection pump.
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Joined: Jun 2010
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From: Puerto Rico
2005 E55 AMG
For those who think the whine upon cold start up is you air injection pump.
IT'S NOT!
When you turn your car on in the mornings you hear this power steering like whine that mostly goes away in about a minute or so. The general consensus in this forum is that the whine came from the secondary air injection pump.
Well, today I removed my SAIP and the whine is still there as it was before and would still quiet down after a minute or so. Shocked at my findings I was determined to find out where this noise came from. Since it sounds like a power steering whine, I checked the power steering pump. No go.
So I sat down thinking, what could sound like a power steering pump? It came to my mind that a transmission pump is actually pretty identical to a power steering pump in design and so I placed close attention to my transmission.
THE NOISE IS COMING FROM THE TRANSMISSION PUMP which is located near the torque converter. Granted, I've heard this same noise on every single E55 I've heard start up so I can only assume it's normal.
Anyways, hope this helps you guys sleep better. I know I will.
BTW- I'm guessing the SAIP weighs about 5lbs. Less than I expected but a lighter car is a lighter car...lol
When you turn your car on in the mornings you hear this power steering like whine that mostly goes away in about a minute or so. The general consensus in this forum is that the whine came from the secondary air injection pump.
Well, today I removed my SAIP and the whine is still there as it was before and would still quiet down after a minute or so. Shocked at my findings I was determined to find out where this noise came from. Since it sounds like a power steering whine, I checked the power steering pump. No go.
So I sat down thinking, what could sound like a power steering pump? It came to my mind that a transmission pump is actually pretty identical to a power steering pump in design and so I placed close attention to my transmission.
THE NOISE IS COMING FROM THE TRANSMISSION PUMP which is located near the torque converter. Granted, I've heard this same noise on every single E55 I've heard start up so I can only assume it's normal.
Anyways, hope this helps you guys sleep better. I know I will.
BTW- I'm guessing the SAIP weighs about 5lbs. Less than I expected but a lighter car is a lighter car...lol
Thread Starter
MBWorld Fanatic!
Joined: Jun 2010
Posts: 4,173
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From: Puerto Rico
2005 E55 AMG
I could be wrong though, but for now I'm 95.542% sure which is more than I was before...lol.
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Joined: Oct 2010
Posts: 209
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From: San Diego, Cali
AMG 2002 E55, 1997 E320
IT'S NOT!
When you turn your car on in the mornings you hear this power steering like whine that mostly goes away in about a minute or so. The general consensus in this forum is that the whine came from the secondary air injection pump.
Well, today I removed my SAIP and the whine is still there as it was before and would still quiet down after a minute or so. Shocked at my findings I was determined to find out where this noise came from. Since it sounds like a power steering whine, I checked the power steering pump. No go.
So I sat down thinking, what could sound like a power steering pump? It came to my mind that a transmission pump is actually pretty identical to a power steering pump in design and so I placed close attention to my transmission.
THE NOISE IS COMING FROM THE TRANSMISSION PUMP which is located near the torque converter. Granted, I've heard this same noise on every single E55 I've heard start up so I can only assume it's normal.
Anyways, hope this helps you guys sleep better. I know I will.
BTW- I'm guessing the SAIP weighs about 5lbs. Less than I expected but a
lighter car is a lighter car...lol
When you turn your car on in the mornings you hear this power steering like whine that mostly goes away in about a minute or so. The general consensus in this forum is that the whine came from the secondary air injection pump.
Well, today I removed my SAIP and the whine is still there as it was before and would still quiet down after a minute or so. Shocked at my findings I was determined to find out where this noise came from. Since it sounds like a power steering whine, I checked the power steering pump. No go.
So I sat down thinking, what could sound like a power steering pump? It came to my mind that a transmission pump is actually pretty identical to a power steering pump in design and so I placed close attention to my transmission.
THE NOISE IS COMING FROM THE TRANSMISSION PUMP which is located near the torque converter. Granted, I've heard this same noise on every single E55 I've heard start up so I can only assume it's normal.
Anyways, hope this helps you guys sleep better. I know I will.
BTW- I'm guessing the SAIP weighs about 5lbs. Less than I expected but a
lighter car is a lighter car...lol
Thread Starter
MBWorld Fanatic!
Joined: Jun 2010
Posts: 4,173
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From: Puerto Rico
2005 E55 AMG
Also, do you have a W211 E55? Maybe the pumps aren't identical on other models.
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Member
Joined: Oct 2008
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From: North Carolina
2005 E55 AMG
Right after my SC bearing went I would hear every little squeek and rattle.
The noise you described had me all concerned.
Turned out that it was just the normal tranny pump noise.
Thanks for figuring it out though. Makes me feel better when I'm not the only one obsessing over the sounds this car makes
The noise you described had me all concerned.
Turned out that it was just the normal tranny pump noise.
Thanks for figuring it out though. Makes me feel better when I'm not the only one obsessing over the sounds this car makes
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Joined: Oct 2009
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From: Jacksonville, Florida
2006 E55 AMG --old cars -- E39 M5, 2.7tt Audi S4, E36 M3 **Ducati 996, 748
So - Can i take out my stupid pump? I dont live in cold climates -- What are the pitfalls of removing it? I want a lighter car -- and with that void -- more air can circulate down there ++
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From: San Diego
2004 E55
If you're still in CA you can fail emissions for removing it. Other than that, it's just an annoyance.
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From: Jacksonville, Florida
2006 E55 AMG --old cars -- E39 M5, 2.7tt Audi S4, E36 M3 **Ducati 996, 748
Well - its not like they will visually check for it during smog --- will it give you a check engine light???
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From: San Diego
2004 E55
They are supposed to do a visual inspection of all the emissions equipment, but people have had mixed results. I haven't ever had a person check on everything. The OP should be able to tell you if it throws a light... I don't think it would.
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From: Jacksonville, Florida
2006 E55 AMG --old cars -- E39 M5, 2.7tt Audi S4, E36 M3 **Ducati 996, 748
The most i have ever seen -- is the inspector pop the hood and look under the car --- never see them searching for stuff like a pump in the bumper -- they wouldnt be able to see it unless they removed the bumper. So - nothign to worry there ---
Only function is for cold start up? So, if the car is warm -- no extra emmisions -- just need to know about the CEL?
Only function is for cold start up? So, if the car is warm -- no extra emmisions -- just need to know about the CEL?
Thread Starter
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From: Puerto Rico
2005 E55 AMG
I have yet to receive a CEL due to this as I did it this morning but it most certainly SHOULD give you one.
I'm trying to get rid of all emission annoyances. Just more parts to fail and make the car weigh more.
I'm trying to get rid of all emission annoyances. Just more parts to fail and make the car weigh more.
Thread Starter
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From: Puerto Rico
2005 E55 AMG
All you have to do is take the undertray off and pull the pump. It took me a whole 10 minutes to do.
If anyone has seen an automatic transmission pump, it's a vane pump. These pumps make these kinds of whining noises ( just like the power steering pump is also a vane pump ). I've just never head a "good" transmission make this noise. I'm guessing it's just an over engineered part whose downfall is just the noise. I'd take the noise any day over a crappy transmission.
Last edited by GT-ER; Jun 7, 2011 at 04:32 PM.
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From: Toronto
V12TT
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From: Puerto Rico
2005 E55 AMG
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So I am correct in assuming this will not boost performance, but reduce weight and annoying sounds?
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From: Puerto Rico
2005 E55 AMG
Thread Starter
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Joined: Jun 2010
Posts: 4,173
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From: Puerto Rico
2005 E55 AMG
Just removed the EGR switchover solenoid and all related vacuum piping and rubber tubing along with the braket. I also removed my entire EVAP system with piping ( except for the pipe coming from the fuel tank, I just plugged that one ). An easy 5lbs less and less mess under the hood. 
In a few days I'll extract all the codes my car has and throw them up so you guys can see what they are.
In a few days I'll extract all the codes my car has and throw them up so you guys can see what they are.
Thread Starter
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From: Puerto Rico
2005 E55 AMG
I just got a message from Snogard stating that the whine is actually from the engine oil pump. I have to further investigate this as I heard the noise come from the rear of the engine/front of transmission but he seems to know this as a fact. I asked him to post it here.
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From: Puerto Rico
2005 E55 AMG
The pump on the transmission is also controlled by engine speed without any kind of slip ( it's a 1:1 ratio with the crankshaft ). The pump has a shaft that goes "fixed" into the torque converter and has a 1:1 ratio with the flexplate. Even when the torque converter isn't stalling, the pump will always be revving at whatever the engine is revving.
Last edited by GT-ER; Jun 11, 2011 at 12:00 AM.
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From: Puerto Rico
2005 E55 AMG
For those curious, here are my codes:
2075 Purge Control System Has A Slight Leak (Minor Leak) : Leak In Hose Connection Or Shutoff Valve Of Activated Charcoal Canister (P0456)
202C Coolant Thermostat (P0128)
2003 Malfunction Of Secondary Air Injection (P0410)
2024 Y32 (Air Pump Switchover Valve) (P0412)
2026 Y58/1 (Purge Control Valve) : Open Circuit/Switchover Valve Permanently Closed (P0444)
I modified my T-stat to run slightly cooler thus the thermostat code, all the other codes are from the elimination of the SAIP and the EVAP. Now I just need Jerry to clear the codes permanently.
2075 Purge Control System Has A Slight Leak (Minor Leak) : Leak In Hose Connection Or Shutoff Valve Of Activated Charcoal Canister (P0456)
202C Coolant Thermostat (P0128)
2003 Malfunction Of Secondary Air Injection (P0410)
2024 Y32 (Air Pump Switchover Valve) (P0412)
2026 Y58/1 (Purge Control Valve) : Open Circuit/Switchover Valve Permanently Closed (P0444)
I modified my T-stat to run slightly cooler thus the thermostat code, all the other codes are from the elimination of the SAIP and the EVAP. Now I just need Jerry to clear the codes permanently.
