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  #16  
Old 12-22-2005, 06:46 PM
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Join Date: Oct 2002
Location: Texas
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check all hoses on load mode. Load mode is when you preload the hoses on "ON" position on your ignition key. You will hear a 2 sec buzz from the fual pump. The lines are preloading for starting. This is the time you check the lines to see if your rubber hoses are still intact. Obviously someone has to turn the key for you. The notorious hoses are the ones coming form the fuel pump and from the tank (by differential).

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1978 280 CE silver
1986 560 SL black
1987 300 SDL cream
1994 SL 500 brilliant green
1997 E 300d dessert silver
2005 FORD F250 Superduty Crew cab 4x4

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  #17  
Old 12-23-2005, 03:41 AM
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,538
Quote:
Originally Posted by a2aa
check all hoses on load mode. Load mode is when you preload the hoses on "ON" position on your ignition key. You will hear a 2 sec buzz from the fual pump. The lines are preloading for starting. This is the time you check the lines to see if your rubber hoses are still intact. Obviously someone has to turn the key for you. The notorious hoses are the ones coming form the fuel pump and from the tank (by differential).
Is there any difference between load mode and engine running. I have been under there many times with engine running.

John Roncallo
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  #18  
Old 12-23-2005, 10:14 AM
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Join Date: Oct 2002
Location: Texas
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If you put the ignition key on "ON"- right before you start it, That is the loadmode, Pressure in the hoses are in the highest. When you start the car, injectores start letting the fuel in the chamber, the pressure equalizes.

My sister in law's car had the same issue. It wouldn't leak when the engine is running- but when you put it on Load mode, you see a small squirt of fuel comming out from a pinhole. As soon as you start the engine, it quits. Worth the try. Good luck
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1978 280 CE silver
1986 560 SL black
1987 300 SDL cream
1994 SL 500 brilliant green
1997 E 300d dessert silver
2005 FORD F250 Superduty Crew cab 4x4

____ADMU____
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  #19  
Old 12-23-2005, 03:52 PM
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,538
Quote:
Originally Posted by a2aa
If you put the ignition key on "ON"- right before you start it, That is the loadmode, Pressure in the hoses are in the highest. When you start the car, injectores start letting the fuel in the chamber, the pressure equalizes.

My sister in law's car had the same issue. It wouldn't leak when the engine is running- but when you put it on Load mode, you see a small squirt of fuel comming out from a pinhole. As soon as you start the engine, it quits. Worth the try. Good luck
Sounds hard to belive but I will give it a look.

John Roncallo
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  #20  
Old 12-23-2005, 04:05 PM
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Join Date: Oct 2002
Location: Texas
Posts: 303
I know-- but if it is intact, then one less thing to replace, right? Good luck

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1978 280 CE silver
1986 560 SL black
1987 300 SDL cream
1994 SL 500 brilliant green
1997 E 300d dessert silver
2005 FORD F250 Superduty Crew cab 4x4

____ADMU____
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