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  #1  
Old 09-03-2014, 09:11 AM
JamesDean's Avatar
Electrical Engineer
 
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,034
M116 Hesitation/Stuttering

Hey everyone,

Our 420SEL sometimes will stutter off the line when you give it gas. Its been doing this for sometime even with new ignition components. Its idling perfectly where it should at 650 or so. I was wondering if this might be a fuel accumulator issue?

I know that part of the accumulator's job is to dampen the fuel pumps and make them run quietly. These are pretty loud.

I think part of its job might be related to that stuttering too. not sure.


Any thoughts?

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  #2  
Old 09-03-2014, 11:29 AM
pawoSD's Avatar
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Join Date: Oct 2004
Location: Grand Rapids, MI
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Stuttering is usually a mixture adjustment issue...mine does it too for just under a second when cold if I mash the throttle too much. Once its been running 3-5 mins the issue goes away.
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  #3  
Old 09-03-2014, 11:45 AM
JamesDean's Avatar
Electrical Engineer
 
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,034
Hmm that sounds about what our is doing too. I'll have to check the duty cycle at the x11
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k
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  #4  
Old 09-10-2014, 11:46 AM
Registered User
 
Join Date: Feb 2014
Location: Fargo.ND
Posts: 13
James more then likely you know this I've read somewhere test accumulator while car is running disconnect line if gas comes out it's bad? diy forum I think I have spare one from 86 190


Last edited by dbc2065; 09-10-2014 at 09:02 PM.
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