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  #1  
Old 03-03-2003, 08:59 PM
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Location: Chevy Chase, MD
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Use of Techron

My '89 300TE was running rough at idle, just not the same old smooth self. Having been told by an independent Merc. shop that Techron works on cleaning injectors I though I would try a bottle with 3/4 tank of gas. It made all the difference, the old smooth idle is back and that's all I did. Food for thought.
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  #2  
Old 03-03-2003, 10:09 PM
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Join Date: Feb 2003
Location: Ontario, Canada
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Techron has always gotten very good reviews on any injector cleaner test I ever read.
I make it a point to add a bottle of injector cleaner at every oilchange.
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  #3  
Old 03-03-2003, 11:39 PM
ako ako is offline
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Join Date: Jan 2003
Location: Los Angeles
Posts: 63
Re: Use of Techron

Quote:
Originally posted by bluestripe67
My '89 300TE was running rough at idle, just not the same old smooth self. Having been told by an independent Merc. shop that Techron works on cleaning injectors I though I would try a bottle with 3/4 tank of gas. It made all the difference, the old smooth idle is back and that's all I did. Food for thought.

Bluestripe,

Are your fuel injectors still original or have they been replaced? The reason I asked is because my 300 TE starts rough on cold starts ( 1st start in the morning) for about 1 second, then idles smoothly afterwards. It only happens in cold starts.

R.V.
------------
92 300 TE (m103) 114K miles
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  #4  
Old 03-04-2003, 12:44 AM
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Join Date: Oct 2002
Location: Colorado Springs
Posts: 481
ako

check your cold start valve
m
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  #5  
Old 03-04-2003, 05:55 PM
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Location: Chevy Chase, MD
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ako, since I'm third owner on my car, not sure if the injectors are orig.
tkamiya, thanks for the tip.
__________________
....just drive'em!
'89 300TE White w/Blue, 152K SOLD!
'93 300E Blue w/Tan, 154K SOLD!
'01 E-320 4-Matic wagon, 130K
'67 Vette Conv. White w/Blue, 217,421K
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  #6  
Old 03-04-2003, 07:47 PM
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Join Date: Jan 2003
Location: Dallas
Posts: 767
My 103 engine sometimes stumbled and stuttered badly on cold start, but I could clear it's throat with a push on the pedal, so I ignored it for awhile. Then the warm idle got just a bit rough.
Techron didn't help, so about 1 easy hour and $120 later I had new injectors, and both problems went away. Great thing about these mechanical injectors; they are relatively cheap and a piece of cake to install on the 103.

S-Class Guru
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