Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-24-2008, 08:39 PM
Registered User
 
Join Date: May 2006
Location: W. WI
Posts: 307
83 380 fuel pump relay issues

#7 pin shows signs of overheating & car will start with jumping #7 & I believe #3.
Will problems in the fuel pump cause amperage to spike beyond the 6-8 amps another post stated this will tolerate?
What is the normal draw (amps) of this pump?
Relay had some silicone on the case but board does not show any new solder & looks great except slight burned white/yellow plastic on the pin interface.
Any clues? Advise?

Reply With Quote
  #2  
Old 11-25-2008, 08:06 AM
Moderator
 
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Well, if that is the original circuit board that is 25 years old??? I don't think you have a problem. Normal draw is 6A with a max of 8.5A.

Yes, running at 9-10A will burn out the circuit over a long time. That is 1 of the reasons MB went to 2 pumps on many of the 1986 & later cars.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
Reply With Quote
  #3  
Old 11-25-2008, 06:19 PM
Registered User
 
Join Date: May 2006
Location: W. WI
Posts: 307
Thanks Doc.
I'll check the amps.
Reply With Quote
  #4  
Old 11-26-2008, 05:35 AM
Registered User
 
Join Date: Jul 2008
Posts: 121
FYI: It isn't all that unusual to have a head gasket failure on one of these six cylinder engines on a car with significant mileage,

Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 06:16 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page