it has been acting up for a while but now it is getting to be a big problem...

i am driving down the road...and out of nowhere my fuel pump relay will click maybe 1nce maybe twice maybe 3 times maybe enough to cut fuel flow and make my truck stall.it is a brand new relay because my truck left me stranded not too long ago and i thought the problem was the relay so i got a new 1 .when it does stall it may start back up right away but then maybe not it may wait a few seconds,or maybe fire and then die right back out ,or it may just stall out and not want to start at all and i sit there cranking and kill my battery.i believe uit is a fuel problem,but cant be sure my friend suggested me checking the ground and hot wires in my high pressure pump for good connections,but i went out there today and got under there but this weather was too much for me so i said the heck with it (it is like 4 degrees outside here today)the guy at the parts store (the day i bought the relay)said it probly wasnt the relay,that he thought it was either a pump or the pressure regulator,which i have the new pressure regulator still in the box but it appears that i need to pull the fuel rail off to get at the screws and i wasnt feeling upfor that either in this weather.,but i dont think the regulator would make the relay go nutz because it has no electrical involvement,it is just a vaccum lin 3 screws that hold it to the fuel rail.

 

If the relay is clicking, that means it's interrupting power to the pump. The pump draws alot of current, so the relay handles the current, while the computer tells the relay to come on or off. I would check for loose connections around the relay and the general area. Also you can check for codes in the computer. Certain error codes can tell you if the computer is loosing the signal from the distributor. If it loses certain signals from the dist, the computer thinks the engine has stopped and turns the fuel relay off.

 

I agree with franklin. The TFI modules on the distributor will cause the truck to stall when hot and then start working again when they cool off. There was a class action lawsuit about this, I found out about it on these boards. This may or may not be your problem, but I thought it might help. I would pull the codes like franklin said to narrow down the problem. www.broncodata.com/tech/codes.htm