[DML] Re: Lack of fuel pressure
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[DML] Re: Lack of fuel pressure

Interesting problem,

I had a similar issue with my car. I had all the injectors out and 
with the fuel pump jumped I would not get any spray until I would 
hear this pop from the fuel distributor (primary pressure regulator 
engaging, usually 30-40 seconds after I engaged the pump) It turned 
out that my entire system was taking too long to reach operating 
pressure because fuel was leaking from the accumulator back into the 
return line. I plugged the return line and the fuel pressure problem 
went away, long story short I need a new accumulator. 

If you jump the fuel pump you should hear a clunk from the engine 
compartment confirming that the primary pressure regulator is 
engaging once primary pressure is reached. If it is not engaging 
then it could be stuck or if it engages only after a while you could 
have the problem I mentioned earlier. Other things to look for would 
be kinks in the lines especially the pickup line in the tank.  

Good luck, I know how darn frustrating fuel problems are. 


--- In dmcnews@xxxxxxxxxxxxxxx, Phil Priestley <phil@...> wrote:
> My car was spitting and sputtering lately and showing a general 
> of power like it was starving for fuel. After dealing with a tank 
> bad fuel that had several gallons of water in it last fall I 
> that  maybe the fuel filter was plugged so I changed it out 
> Even after changing the filter the car ran the same so I popped 
> injectors out of one head and stuck them in soda bottles and 
> the fuel pump. Two out of three seemed fine with one barely 
> Damn! those injectors are only two years old and have about 200 
> on them.  I pulled the injectors off and tapped them a few times 
> see if I could dislodge any chunks of crud out of them, put them 
> on and jumped the fuel pump again.
> This time there was no spray or even dribbles coming out of them. 
> can hear a whoosing sound of fuel going through the CPR and back 
> the tank. I pulled the injectors off the lines and stuck the lines 
> soda bottles and jumped the pump again. This time with the air 
> pressed down all the way there is barely a trickle of fuel coming 
> of the lines.
> So what gives? The CPR is a rebuilt one that is about 2 years 
> fuel pump is a year old, fuel filter is new, injectors 2 years. I  
> can't imagine what is going on here. Anyone able to help?
> Phil Priestley
> Vin 2105
> [Non-text portions of this message have been removed]

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