You don't have an in line fuel filter in there somewhere, do you? These
cars can have them in odd places that you would never expect. The other
thing it might be is some sort of flotsam in your gas tank. If the car
sat for a long time, or the gas tank is original, then that could be
your problem. After you shut off the key, the debris can fall away from
whatever it is blocking until it floats up to obstruct the fuel flow.
Larry Dickstein
bugide@juno.com
On Wed, 16 Jul 1997 13:09:47 -0400 "Jason F. Dutt"
<simjason@ix.netcom.com> writes:
>I've sent a message about this problem before, and got some good
>feedback
>that what appreciated. Unfortunately, I'm out of ideas, and the
>problem
>still isn't fixed.
>
>To sum up the situation:
>
>Turn the car on, fuel pump runs, car starts. Car runs for approx. 3-5
>minutes, then it behaves as if someone is literally squeezing the fuel
>line. It sputters and coughs, won't idle, but will respond (however
>pathetically) if the accelerator is depressed. Soon after, the
>accelerator
>will have little to no effect, and the car dies. I can then turn the
>car
>off, then on, and the fuel pump runs like mad (every time), filling up
>the
>float bowls. The bowls must be empty at this point, because the pump
>runs
>for quite a while. I can then start the car again. It will either
>keep
>running indefinately, or die again in 3-5 minutes.
>
>Some more info:
>
>1) It is intermittent. If the challenge surfaces, it will continue
>until
>the car has sat for a while, and then may or may not happen again.
>2) It doesn't seem to be affected by temperature, as the car has done
>this
>when cold or hot.
>3) The most the car has run since this has started is about two days,
>with
>stops (turning the car off for a while, and then starting it and going
>again).
>
>Things I have already checked:
>
>1) Float / Float needle. They didn't seemed to be gummed up, but I
>rebuilt the carbs anyway (doesn't hurt, as they were pretty dirty),
>and put
>in a new grose jet.
>2) Fuel tank venthilation. I'm not sure if I did this right, so tell
>me
>if there's a better way. I disconnected the hoses from the carbs that
>lead
>to the carbon canister, and took off the gas cap. The car still died.
>3) Power supply to the fuel pump. The pump is a newly refurbished SU
>AUF300 model. I checked the leads and supply with a voltmeter. The
>battery was old and kind of weak, so I replaced it.
>4) Fuel line blockage. I disconnected the line at the carbs. Turned
>on
>the key, pump operated. Blocked the flow with my thumb, the pump
>stopped,
>and resumed when I released it.
>
>I'm plumb out of ideas. I want to say its the fuel pump, but I've had
>that
>challenge before (hence the new one), and the symptoms were different.
> As
>I said before, the pump runs EVERY time I turn the key on after the
>car has
>died.
>
>Help please!
>
>Regards,
>
>J
>
|