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  #1  
Old 03-11-2010, 07:40 PM
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Angry 1992 300e

Hey guys,after tuneup still shaking any advise?

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  #2  
Old 03-11-2010, 08:52 PM
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After I put in a new O2 sensor I noticed the best improvement. Then I tinkered with the Lambda adjustment which you have to do with the air housing cover in place due to the air flow mixture sensor. Have you done either of those? I have a 91 300E. It idles as good as I can expect although my daughters 88 300E runs much better with more miles!

Steve
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  #3  
Old 03-11-2010, 10:29 PM
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No,I just tuneup and air filter fuel filter thats it.
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  #4  
Old 03-11-2010, 11:02 PM
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Quote:
Originally Posted by lbaykan View Post
No,I just tuneup and air filter fuel filter thats it.
And this "tuneup" consisted of replacing what?

It should consist of:

-distributor rotor and cap
-wires
-spark plugs
-air filter
-fuel filter
-belt

On mine I replaced the injectors too.
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  #5  
Old 03-11-2010, 11:44 PM
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Check the engine mounts.
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  #6  
Old 03-13-2010, 11:17 AM
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I,m thinking it my fuel pump car have 195000 mile maybe time?
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  #7  
Old 03-13-2010, 11:22 AM
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also 02 sensor to
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  #8  
Old 03-15-2010, 12:46 PM
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Ditto checking the mounts. Put it into reverse with your foot on the brake, see if the shaking changes.

New mounts can make a huge difference to shaking/vibration at idle and while stopped with engine running.
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2007 E550 4Matic - 61,000 Km - Iridium Silver, black leather, Sport package, Premium 2 package
2007 GL450 4Matic - 62,000 Km - Obsidian Black Metallic, black leather, all options
1998 E430 - sold
1989 300E - 333,000 Km - sold
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  #9  
Old 03-15-2010, 06:37 PM
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"Shaking" would likely not be motor mounts. A perfect running M103 does not shake.....
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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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  #10  
Old 03-15-2010, 06:43 PM
Home appliance genius
 
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Quote:
Originally Posted by pawoSD View Post
"Shaking" would likely not be motor mounts. A perfect running M103 does not shake.....
exactly. I would be looking for a misfire etc...
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  #11  
Old 03-16-2010, 08:48 AM
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Quote:
Originally Posted by pawoSD View Post
"Shaking" would likely not be motor mounts. A perfect running M103 does not shake.....
Yes, it does. Which is partly why they installed mounts. If you have ever had them replaced once they were worn, the difference is significant in terms of vibration at idle. With 195K on the clock who knows when they were last replaced.

Good reference thread on the issue - http://www.peachparts.com/shopforum/showthread.php?t=110989

When people say their engine 'shakes' at idle, it's tough to know online if they mean it is not running smoothly, or if they are feeling excessive vibration through the chassis. Which is why - after the OP stated the engine has been tuned - mounts are usually a good second culprit. Easy to mistake the vibration from worn mounts for a rough-running engine.

With that age/mileage I would also check the injector seals.
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2007 E550 4Matic - 61,000 Km - Iridium Silver, black leather, Sport package, Premium 2 package
2007 GL450 4Matic - 62,000 Km - Obsidian Black Metallic, black leather, all options
1998 E430 - sold
1989 300E - 333,000 Km - sold
1977 280E - sold
1971 250 - retired


"And a frign hat. They gave me a hat at the annual benefits meeting. I said. how does this benefit me. I dont have anything from the company.. So they gave me a hat." - TheDon

Last edited by Zeus; 03-16-2010 at 09:07 AM.
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  #12  
Old 03-16-2010, 08:59 AM
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hmmm sounds like a misfire,did you install the plug wires in the correct firing order,and did you pregap the plugs?

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