bc32i
Junior Member
- Joined
- Sep 8, 2013
- Posts
- 2
- Reaction score
- 0
- Location
- Buffalo, NY
- First Name
- Brian
- Truck Year
- 1985 & 1987
- Truck Model
- k10 & r2500
- Engine Size
- 400& 350
Hi guys, I have a real head scratcer going on with my 87 gmc r2500, 350 tbi motor, I just took the motor out of my brothers 93 chevy pick up,has around 40k on it ran great in his truck. I swapped it to my 87, using my tbi and sensors fired it up and it ran good for a few minutes. Then the headaches began, it would run really rough almost like it was missing then clear up and run perfect, heres a list of things I have done and had done by mechanics (3 different ones) plugs, wires, cap, rotor, all new vacuum lines, fuel filter, replaced the ecm,tps, cts, map, o2 sensors, new distributor, egr, tbi off the 93, then rebuilt the 87 tbi and put it back on and still the same thing. I put a new iac valve in last night and still the same thing. Ive sprayed the manifold with starter fluid to check for leaks all is good I have not checked the fuel pressure yet because it does it on both tanks so my thinking was it wasnt the pumps. The only code I have is a 24, wich is a vss code, but the truck was in park when it went off. I am trying to get it on video and post it to YouTube so I csn show people but its so sporadic. Its driving me nuts! I will be doing a fuel pressure check this weekend and keep you posted. Any ideas on this problem?
