Hello. I'm glad to have found this forum; now I'm (figuring out) how to post my first ever thread. Can you tell I'm "vintage"?
I am the proud owner of a loverly '89 D100 1/2 ton V6 with only one (main) issue. Can we guess what that might be????
First year of "throttle body" & boy does it suck. I've never had a poorer running vehicle. I've replaced all sensors/done literally everything possible but not having any real luck.
After putting the gas tank back on in the next couple of days (strap went kablooey) with new Bosch pump * strainer, I'm hoping it will improve; not optimistic though.
Next/last option is changing out the throttle body & going with a Carter BBD 2 bbl carb. Anybody had any luck with this? Any tips out there as to what else (pieces/parts) I might need?
I plan on A) low pressure (5-10psi) in-line pump (disconnect the Bosch pump but not the tank level function; B) I expect a different cable connection/ball; C) new carb base gasket; D) reconditioned low cfm BBD from Autoline (already priced)...
Any comments welcome. Thanks for any help or guidance offered.
'89 D100

 

Before you convert you may want to explain your issue in further detail. I had a 90 that i put 150K on with relativity no issues.

 

what sensors have you replaced? i would never recommend going carb. i would recommend looking into an aftermarket TBI setup over carb any day of the week. finding people that know how to tune a carb is getting a lot harder plus the drive ability of them is not the greatest. the aftermarket setups are pretty cheap for what they are and since your truck is already TBI it shouldn't take too much work to install a newer TBI setup.