Ford 7.3???

[MScheiper]

Work truck has the following issue:

When coming off the throttle to shift, the engine dies. Tried it at a dead stop, and the same results... . take it to about 1800RPM and take my foot off the throttle, and it dies, however it does start up again. Here's my thoughts:

- New fuel filter

- Possible new fuel pump

- Injection pump??



Any other suggestions??



Any help greatly appreciated! Thanks

 

[JoeBioDiesel]

What year truck? Is this a Powerstroke?, or is it the one listed in your profile?

 

[MScheiper]

Sorry, It's the one in my signature. 1990 7. 3 no turbo, not a powerstroke.

Thanks!

 

[TFucili]

It starts and idles otherwise? Is it only when the throttle "snaps" shut? I'm wondering if it is a problem with the ETR solenoid.

 

[JoeBioDiesel]

Then my first thoughts are:

Idle set too low. or

Governor in pump sticking a little. Turning the idle up might help cover this problem up.

So, turn the idle up a little and see what happens.

Joe

 

[WStephens]

I had a 90 also it never had that problem but something to look at is the connection and wires for the fuel shut of valve to the injector pump it needs a minimum of 9 volts to keep the valve open.



When my injector pump went bad it was hard to start because it lost prime when parked.

 

[TFucili]

I had a 90 also it never had that problem but something to look at is the connection and wires for the fuel shut of valve to the injector pump it needs a minimum of 9 volts to keep the valve open.

Ford calls that the ETR(Energize To Run)solenoid.

 

[MScheiper]

Thanks for the help guys! Will give it a try and see what happens...

 

[WStephens]

Ford calls that the ETR(Energize To Run)solenoid.

I used manuals I bought from International for the engine and the injector pump.