|
|
|
#1
|
||||
|
||||
420sel,90,fuel stumble
Hi all just-n-time here,today we had to make a long trip to Shreveport(120) miles.I let the fuel get down to the warning light,I filled it and drove 10 miles to the hospital,we sat there all day.When we left for home,and had gone some 30 miles,The car began to shut down,It would act like the engine was flooding,more like starving,it would not pull, the vacuum jumped into the red, and power was non existent.Pulling over to the side I would play with the throttle and it began to run as it should.Just a few miles it starts all over again.If you shut the car off it will restart and work just fine again for only a few miles,needless to say it was a long trip home!
|
#2
|
||||
|
||||
I'd suggest either fuel relay or fuel pump.
__________________
Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D 380SE 1984 <------- Totaled by flipping accident 300SE 1988 <------- Sold Volvo S70 2000 <---- 4 family Opel Omega 2002 <-- 4 family 560SEC 1989 <------ Sold 560SEL 1990 <------ Sold 560SEL 1991 <------ 4 my mother 560SEL 1989 <------ Sold 600SEL 1992 <------ Current http://search.ebay.com/_W0QQsassZkhazenzcc |
#3
|
||||
|
||||
Possibly a dirty/blocked fuel filter from letting the fuel run down and junk in the tank blocking.
It's the cheapest fix to start with anyhow!
__________________
1988 W126 420 SE beware of fundamentalists! |
#4
|
|||
|
|||
it sure sounds like a fuel filter.with the circumstances surrounding this event it might be a good idea to drain the tank when you replace the filter.
__________________
David S Poole European Performance Dallas, TX 4696880422 "Fortune favors the prepared mind" 1987 Mercedes Benz 420SEL 1988 Mercedes Benz 300TE (With new evaporator) 2000 Mercedes Benz C280 http://www.w108.org/gallery/albums/A...1159.thumb.jpg |
#5
|
|||
|
|||
I fixed my problem like that by resoldering the fuel pump relay into the circuit board as suggested in another post. It's a very heavy component held to the board by two solder joints and solder isn't for structural mounting.
__________________
Gregga '89 420 SEL "Moby Dick" '30 Ford Coupe '31 Ford Slant Windshield Town Sedan '33 Ford Pickup '34 Ford Pickup '01 Honda Passport |
#6
|
||||
|
||||
OK gang I will recheck fuel filter It is new maybe five tanks run threw it, I suppose you could still be getting junk off the walls of the tank,The car sat for several years this was why I changed the gas tank screen, It was not bad, I have replaced it though, I am going to recheck the fuel accumulator too,I guess you can get a bad one,changed it last week. Well hard work today so tomorrow will be for the car.JNT
Last edited by just-n-time; 03-23-2007 at 05:46 PM. |
#7
|
||||
|
||||
Shop talk
Quote:
|
#8
|
|||
|
|||
The symptoms of your problem sound like a bad fuel pump not a filter or relay. The key symptoms are: a road trip, repeated failures with loss of symptoms after setting, and the current noise of the pump/s.
__________________
Steve Brotherton Continental Imports Gainesville FL Bosch Master, ASE Master, L1 33 years MB technician |
#9
|
||||
|
||||
OK Steve
After replacing the fuel accumulator last week I made the statement that the pumps sounded quieter,perhaps I jinxed my self! well I will have to see what Phil can do. Perhaps I should change the check valves too,any thoughts on this?
|
#10
|
|||
|
|||
I can't imagine check valves playing any part. But, more importantly I never replace parts because I think they may be the problem. If you have a pump problem it is easy to prove.
__________________
Steve Brotherton Continental Imports Gainesville FL Bosch Master, ASE Master, L1 33 years MB technician |
#11
|
||||
|
||||
Yes I do need to set up a fuel pressure unit.I have the gauge,Just need to set up the attachments.JNT
|
#12
|
||||
|
||||
Drained fuel
Took the fuel out of the tank today,and removed the in tank strainer (filter) kept first drippings from the opened fuel tank,and found no bad sediment in tank.The fuel tank filter looked very good,(only six months old) I found no reason for a plugged fuel system,so I guess the fuel pumps will be the next test.JNT:fork_off:
|
Bookmarks |
Thread Tools | |
Display Modes | |
|
|