Hello today I rebuilt the TBI unit on my 94 K1500 with the 350. The truck was running before but ran a bit rough cold.
I had to get a different throttle body to rebuild because I cross threaded a couple fittings on the old one working on fuel lines.
However after the rebuild today it does not want to run. I crank it and it pops off for a second then stalls. After toying with it for 15-20 minutes it finally starts up and runs. It runs great when it finally starts.
When cranking it and I give it gas sometimes it will stutter to life and rev like crap.
I took the IAC and TPS off my old throttle body and put them on my rebuild one, but still no luck at all.
I did notice when rebuilding the tbi that the fuel pressure regulator cap from my old one was a bit different from the one I rebuild off of and it had a piece inside that the other one didn’t. I couldn’t use the one that it was using though because it was bent so I took the one off the donor tbi with the spring from my old tbi unit. Could this be causing an issue? Should I rebuild it again with a totally new regulator and spring?
I had to get a different throttle body to rebuild because I cross threaded a couple fittings on the old one working on fuel lines.
However after the rebuild today it does not want to run. I crank it and it pops off for a second then stalls. After toying with it for 15-20 minutes it finally starts up and runs. It runs great when it finally starts.
When cranking it and I give it gas sometimes it will stutter to life and rev like crap.
I took the IAC and TPS off my old throttle body and put them on my rebuild one, but still no luck at all.
I did notice when rebuilding the tbi that the fuel pressure regulator cap from my old one was a bit different from the one I rebuild off of and it had a piece inside that the other one didn’t. I couldn’t use the one that it was using though because it was bent so I took the one off the donor tbi with the spring from my old tbi unit. Could this be causing an issue? Should I rebuild it again with a totally new regulator and spring?