Ok so I replaced the fuel pump, filter and fixed the fuel pump relay.
I am getting fuel all the way up to the motor because I took off the fuel line (that goes up to the fuel distributor) and let it hang and then turned the key. Fuel came spurting out.
However...I pulled ALL four plugs and they are all dry as a bone.
I checked the cap and rotor. They check out ok and I am getting plenty of spark.
It seems like im not getting fuel into the cyclinders. What do you guys think the problem may be? Are my fuel injectors not firing? I plan on taking some stuff apart and seeing if the fuel injectors are spraying fuel. I am not sure what the problem could be.
The car ran fine all the way up until I replaced the pump. I did spray some starting fluid in the throttle body area and it still won't start up. Its almost like something is blocked. But again about two weeks ago it ran just fine (until the fuel pump went out)
Anybody have any suggestions?
P.S. This is a 1984 190E
P.S.S All fuses are fine and again , I'm getting fuel all the way up to the motor...just not through it.
Although fuel is coming out of the line that goes to the fuel distributor, and it ran okay until you replaced the fuel pump, you may have a fuel pump delivery/pressure problem if the spark plugs are dry and the injectors aren't spraying fuel.
I'm just guessing, but I would suspect the fuel pump is faulty...assuming of course that nothing is blocked on the suction side of the fuel pump.
You might also want to remove the air cleaner housing and make sure that the round metal plate moves upward and is not stuck. If for some reason it is stuck, fuel will not come out of the injectors. Clean the area while you are in there.
There was a thread about this some time ago and I followed the cleaning procedure and now my '93 starts up like it did when it was new. It had been taking 2 or 3 cranks before I cleaned the intake and it has been over a year now. Before that, I had replaced the fuel filter, plugs, wires, distributor cap, rotor...but the intake cleaning made the biggest difference.
Good Luck,
Dave
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If it ain't broke, BREAK IT.....and make it better.
Just it just crank or does it crank, catch for a second, and go back to cranking?
It cranks and acts like it wants to run. But it doesnt...it just keeps cranking.
Quote:
Originally Posted by jdc1244a
Although fuel's coming out you should check the system pressure, make sure the return line is not blocked and the fuel pressure regulator is working.
You may also have an air or vacuum leak, a leak around the injector seals and/or bad injectors.
Well, I tried all this with the air cleaner on and off. Like I said it ran just fine about two weeks ago with the old pump. I replaced the pump b/c it was leaking fuel through a crack in the fuel pump.
Although fuel is coming out of the line that goes to the fuel distributor, and it ran okay until you replaced the fuel pump, you may have a fuel pump delivery/pressure problem if the spark plugs are dry and the injectors aren't spraying fuel.
Well like I said the pump is spewing out fuel. I disconnected the banjo fitting just after the pump and it came gushing out.
I thought it might be the filter. So I undid the bolt that fuel comes out of, and with the key turned on it sprayed out alot a fuel.
Then I thought it might be the line to the fuel distributor, but I disconnected that and fuel spews out of there too. So it has to be somewhere from the fuel distributor to the fuel injectors im guessing?
Quote:
Originally Posted by slk230red
I'm just guessing, but I would suspect the fuel pump is faulty...assuming of course that nothing is blocked on the suction side of the fuel pump.
But how could it be the fuel pump? Its brand new and its doing its job by pumping out lots of fuel.
Quote:
Originally Posted by slk230red
You might also want to remove the air cleaner housing and make sure that the round metal plate moves upward and is not stuck. If for some reason it is stuck, fuel will not come out of the injectors. Clean the area while you are in there.
Well I took of the air cleaner housing and I can push down on the big circular thing. I did this to spray some starting fluid in. (And no it didnt start up when I sprayed it in there )
Quote:
Originally Posted by slk230red
There was a thread about this some time ago and I followed the cleaning procedure and now my '93 starts up like it did when it was new. It had been taking 2 or 3 cranks before I cleaned the intake and it has been over a year now. Before that, I had replaced the fuel filter, plugs, wires, distributor cap, rotor...but the intake cleaning made the biggest difference.
Good Luck,
Dave
Thanks Dave. Do you by chance have the link to the thread you are talking about? Thanks for the replies guys.
See if you can borrow a fuel pressure gadge or have someone check it for you. You say it has heaps of fuel, but if it doesn't have enough pressure the fuel distributor won't work correctly. It's worth checking anyway.
I've had heaps of issues like this on mine so I have learn't never to rule out anything. Good luck.
See if you can borrow a fuel pressure gadge or have someone check it for you. You say it has heaps of fuel, but if it doesn't have enough pressure the fuel distributor won't work correctly. It's worth checking anyway.
I've had heaps of issues like this on mine so I have learn't never to rule out anything. Good luck.
Thanks for the reply.
So how did you fix yours? Was your's doing the same thing as mine?
I'm heading out the door, but you might want to consider hooking up the old fuel pump just to verify that it will run with the old fuel pump (that leaks), but not with the new fuel pump.
same thing happened when i got the engine into the project car. what i did was i used the info about jumping the fuel pump and havin it on all the time and then i loosened each of the injector lines on the fuel distributor and made sure that all the lines are getting fuel. long story short the car had a bad fi relay
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Jippi Jak
1993 MB 190E 2.3---Car's naked...
1996 Volvo 855 GLT--Project R clone Benzworld.org---Jersey Crew
same thing happened when i got the engine into the project car. what i did was i used the info about jumping the fuel pump and havin it on all the time and then i loosened each of the injector lines on the fuel distributor and made sure that all the lines are getting fuel. long story short the car had a bad fi relay
I had a bad fuel pump relay. However, I fixed it. And you can hear the fuel pump pumping.
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