[DML] Re: fuel pump / tank problem - Can anyone HELP???

["David Teitelbaum" <jtrealty@xxxxxxxxxxxxx>]

There is obviously a problem in your vapor venting. Maybe a hose is
kinked or crushed, maybe blocked off. I have seen on several cars that
the hose coming out of the bottom of the vapor cannister is blocked by
insect debris. It's like cement. The pump can't pump against a vacuum.
David Teitelbaum
vin 10757



--- In dmcnews@xxxxxxxxxxxxxxx, "daviddlasvegas" <daviddlasvegas@...>
wrote:
>
> Since having my fuel sending unit replaced, I've had a problem of my 
> fuel pump vibrating and humming loudly. I thought the problem was 
> heat related, but recently the problem started occuring in cooler 
> weather too. Its now so bad that within 10 minutes of running the 
> car, the fuel pump starts humming very loudly.
> 
> What's odd is that the pressure balance in my fuel tank is screwed 
> up. When you stop the engine and take the gas cap off a whosh of air 
> gets sucked in.
> 
> But tonight something different occured. I took the gas cap off 
> after drivng the car for an hour and a steady stream of hot air/fuel 
> vapors came out. It was *extremely hot*. It blew out in a stream 
> (like when you blow thru a straw) for a complete 2 minutes. Later in 
> the evening when I got home the pump was humming very loud, I took 
> the gas cap off with the engine running and boom - like Old Faithful 
> the gas gurgled up and spewed out the fill spout in a stream about 
> 12-15" high.  The entire hood of the car, windshield, and 
> myself were covered in gasoline. Thank goodness there was no 
> ignition source or I'd be a roman candle. I jumped in the car and 
> shut the engine off.
> 
> I had the guys at Delorean One replace the venting pipe and tubes 
> which did not solve the problem (don't mind though since my original 
> components were such a mess anyway).
> 
> Does anyone have any idea as to what's going on? I'm getting fed up 
> with this. I don't like messing around with fuel vapors and the fuel 
> system for obvious reasons.
>




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