IP problem M1009

[ms1223]

I posted about a problem my wife had last week. 1984 M1009. No power the truck stalled. the truck started no poblem. I changed the fuel filter great instructions from the site. The truck runs, no power, stalls after a few minutes. 24,000 documented miles on the truck. I suspect a IP problem. Any suggestion?
After reading the threads about IP's, I am planning on replacing the pump. Any suggestions on costs? Preferred MOd's?

 

[Matt65]

I don't believe I read your other thread. The IP rebuild will take time, and $. I would want to check the smaller things first. Can you confirm correct fuel pressure into the IP from your fuel pump? Have your injectors been pop-tested? Do you have any IP fuel leaks? Is compression good on all cylinders? Mine was leaking from the throttle shaft before it's rebuild.