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hope they get it figured out. sounds like that new TB might have some sort of other issue. hope you also gave them the old one to help trouble shoot.
HMM I didn't know that was even an option and if it would even run right.
Yes I gave the shop both TBI's and told them the story.
I would do neither of those. If the worst symptom is a hunting idle, I’d just drive it until something bigger breaks. But I’d exhaust all the other things mentioned first, including getting a cable and a way to see what the ECM is doing. Cable and software, even if you had to buy a computer, is going to be cheaper than either of their options. I’d put the old TBI back on as it was, go over everything with a fine tooth comb mentioned in this thread, and then scan and see what the ECM is up to. And if I wasn’t happy after that, I’d regrettably do an LS swap before either of the other two options.
Hmm I had not through of an LS swap. Do you mean the 4.8 or 5.3 engine? My wife has a 2013 Silverado 2WD short box in superb condition. With the 4.8 it moves and sounds real good with MBRB CAT back duals. Are adapters made to mate up with the manual tranny to do this kind of swap? I'd probably have to invest 15- 20K to have a shop around here do that kind of swap unless I transported it up north somewhere where prices for vehicle work are more reasonable.
Well it's a HUGE list- I have a book of the work and receipts. And some of it my work, some a shop and their labor. For starters- dual fuel tanks not working- needed all new wiring and new wiring harness under the truck, fuel pumps, all new wiring under the truck to get the turn signals and brake lights working, new front and rear brakes, drums, emergency brake cable, bed and tail gate sanded, primered and bed coating applied, all new U Joints, new oil pan and gasket, new clutch and flywheel, new clutch slave cylinder (2X), complete undercarriage cleaned and degreased- axles, drives shafts, body panels, etc. sanded to bare metal, primered and painted, front wheel well liners removed, repaired, sanded to bare metal and painted, front end grill area disassembled, sanded and painted, new front fascia, new battery (2X), new radiator, thermostat, valve covers and gaskets, new air cleaner assembly, power steering pump, power steering gear box, all new tie rods and ends, rear differential cover, all fluids changed and flushed, instrument panel bezel cleaned, repainted, gages, dual shock truck- added the second shock, all new shocks, new spring bushings, front wheel bearings and seals new. Interior work, floors, paint, bench seat. There is much more. Paint was good driver quality when I bought it so no repaint.
Find a 74 carb or a few years newer. Sometimes old don't mesh with new parts.
