: Difficult to start engine in Eldorado 1983

06-28-11, 07:42 PM
Dear friends over there I have a Eldorado 1983 with 4.1 L engine, the engine is very difficult to run I have to start several time so the engine will go.
I have a new fuel pump in the tank (Delco) and last thing I do was changin the injector valve I find them in USA and put the in last week. But the engine not change so much.
same problem, starting long time to turn the engine on, do someone have some solution ore something I have to check .
Thanks Johann Vilhjalmsson in Iceland

07-01-11, 07:52 PM
Not so many answer here, but now I find out that, that when I swish electric on the fuel pump in the tank give no presure on the fuel line, the pump is new, so T thin it is some electric problem,
can some one name some realey ore swish on the electric line?

Thanks Johann Vilhjalmsson

07-05-11, 03:35 AM
If the oil pressure switch is either faulty or disconnected, you will not get voltage to the fuel pump. To verify the pump is working, you should see 2 sprays of fuel coming from the 2 injectors in the throttle body while you have someone crank over the engine. Check to make sure the oil pressure sender wiring connection is on fully and clean.