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  #1  
Old 09-16-2000, 05:22 PM
DC
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Here it is....... 2.3-16. Opened up the fuel pump relay, no cracked solder, no burn marks. The engine just shuts off. Sometime when the key is turned when starting, no fuel pump noise. When that happens again, what terminals do I have to jump to start it without the fuel pump relay and OVP relay as well? (Just testing purposes.) By the way, the fuse on top of the OVP relay is good and the engine will run. It'll just shut off for no reason. If I bang on the fuel pump a couple time after it dies (the old hammer theroy), It'll start back up with little effort. Sometimes when I hit 3000 RPM, the engine will stutter. The car has less than 90,000 miles on it, could it be possible that I will need to replace my fuel pump? I have been getting worse milage but I have been having more fun than normal. Any info will be appreciated. Thanks.

DC

190E 2.3-16
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  #2  
Old 09-16-2000, 10:48 PM
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Join Date: Apr 1999
Location: Walnut,CA,USA
Posts: 554
I think it's time for new fuel pumps,if pump is noise that telling you pump is old,CIS-E syetem need operate under pressure.

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MB STARS Master Guild Technician,12 years MB tech
6 years independent shop owner
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  #3  
Old 09-16-2000, 10:57 PM
DC
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Sorry. I meant noise from the pump as the hissing sound when it is operatin.

DC
2.3-16
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  #4  
Old 09-17-2000, 09:52 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
You can hot wire the the pumps by jumping the pins in the relay then see if it fails. If not, you have found the problem. I would bet money on the fuel pump relay.

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Donnie Drummonds
300E
ASE CERTIFIED MASTER AUTO TECHNICIAN
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