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#1
03-03-2006, 08:09 AM
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Need HELP 300e Starts but cuts off
I have a 1989 300e. When I stoped and got gas the car was running fine. I still had a 1/4 take of gas. When I tryed to leave the car will start but only runs for a few seconds and cuts off. Where do I start to trouble shot this. HELP!
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#2
03-03-2006, 08:23 AM
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Will it idle without dieing?
(You need to include as many specifics as possible to get the best help)
__________________
-Marty 1986 300E 220,000 miles+ transmission impossible (Now waiting under a bridge in order to become one) Reading your M103 duty cycle: http://www.peachparts.com/shopforum/showpost.php?p=831799&postcount=13 http://www.peachparts.com/shopforum/showpost.php?p=831807&postcount=14
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#3
03-03-2006, 08:32 AM
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300d
No. It starts but as soon as it starts to idle it cut off.
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#4
03-03-2006, 08:43 AM
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Quote:
So it wont idle. Does the economy gage behave erratically as it is dieing? also... This happened at the pump where you filled up and immediately, the first time you started it, in how many seconds? How long does it run before dieing? also... Was the car fully warmed up at the time?
__________________
-Marty 1986 300E 220,000 miles+ transmission impossible (Now waiting under a bridge in order to become one) Reading your M103 duty cycle: http://www.peachparts.com/shopforum/showpost.php?p=831799&postcount=13 http://www.peachparts.com/shopforum/showpost.php?p=831807&postcount=14
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#5
03-03-2006, 09:06 AM
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300d
Yes it is gas. I just went out and tried to start it. The economy gage does not act erratically. It looks like it moves to the end of the red line and then the car stops. The car was fully warm, I had been driving for an hour.When I start it it does the same thing every time.
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#6
03-03-2006, 09:26 AM
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Nothing really jumps out at me.
Take a look at the breather hose that goes from the valve cover gasket to the top of the air cleaner to see if it is cracked, often at the bottom of the valve cover side... (but I would think it would run a little and stumble a lot if that were the problem) one quick test is to un plug the EHA to find out if it is computer related. You have to remove the air cleaner housing 2 bolts (10mm 1 rear left facing up and 2 middle right facing side) You will see a little black box on the back of the fuel distributor with a 2 prong plug. This is the only control the computer exerts over the fuel system. ~When it is unplugged it is very dificult to start a cold engine in cold weather.~ Otherwise it mostly affects emissions, driveability is almost normal with a warm engine. So you could unplug it and see if it will run. If you have no tools available, a less comprehensive test is to unplug the O2 sensor under the passenger footwell (under carpet, under padding, in black plastic box, green wire) I'm not sure about the failure modes of the crank position sensor, but that is a possibility. The fact that you just bought gas is suspicious, was there a tanker filling them up while you were there? Maybe someone else will jump in and suggest other system failure's with which I am less familiar. Good luck.
__________________
-Marty 1986 300E 220,000 miles+ transmission impossible (Now waiting under a bridge in order to become one) Reading your M103 duty cycle: http://www.peachparts.com/shopforum/showpost.php?p=831799&postcount=13 http://www.peachparts.com/shopforum/showpost.php?p=831807&postcount=14
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#7
03-03-2006, 11:41 AM
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I take it you somehow got the car to run long enough to get home in order to create this post?
__________________
Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein"
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#8
03-04-2006, 01:56 PM
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Thanks
I would like to thank A264172 for the help. After I unpluged the computer the car started. I waited a little while and pluged if back in and it is running fine. thanks again..
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