1987 Chevy 3/4 Ton Pickup Stalling While Driving

[chika989]

Had major issues with Code 42 and thanks to the many responses on this forum I finally resolved that issue. New distributor pole piece was the answer.

NOW.....we have a new problem!

While driving at any speed the engine just stalls without any hesitation. I coast to the side of the road and the engine will start right back up.
I have replaced the fuel pump and fuel pump relay. Immediately after replacing the fuel pump relay I had no stalling issues for about fifty miles. Now I'm worse off than before replacing the fuel pump relay.....truck stalls about every five miles or will even stall while just running in the driveway.

Any suggestions would be much appreciated. I'm at a loss here.

Thanks!

[Johnc10]

Is it getting hot at all?
Posted via Mobile Device

[chika989]

No, not getting hot.

[Goldfinger]

low oil pressure shutoff? Not sure if ours has one could be a faulty sensor if so.

[beamn7]

Check the pin terminals on the fuel pump relay plug. Run into that ALOT....
If they have any loosenes to them, buy a replacement pigtail and splice it in.