Replaced engine wiring looms on Gran Prix with 3.1 (vin T). while pulling return line off power steering pump the plastic nipple broke off pump. will pump off any 89 to 94 cutlass, lumina, regal or gran prix with the 3.1 T engine work. want to try and get the lowest mileage pump at the junk yard.
Also, on the metal cooling lines supplying the heater core. First off, is the heated coolant to the bottom of the throttle body needed. Why does it need heat when there isn't any liquid there? I'm in KC where temperatures range from 0 in winter to 100+ in summer
When we got the Gran Prix, the previous owner had already modified the metal pipe running from the heater core across the firewall, down along the frame forward and back up next to ecm ending with rubber hose which then connects to the top of the water pump. The metal must have rusted through where the brackets hold it against frame. he had cut the pipe up by the turn going across the firewall and clamped and long piece of heater hose to the pipe to the water pump. i tried to find one at junkyard, but they were all rusted or had also been modified. i take it this is a common problem on this engine or body model????
I was wondering if i could plumb the throttle body piping with the heater piping in series to eliminate this rusty firewall pipe completely. to clarify: (1) existing plumbing runs from under thermostat to throttle body, (2) fabricated plumbing from throttle body to heater core, (3) fabricated plumbing from core to existing return line used for throttle body return to water pump.
Or can i just eliminate the water supply to the throttle body?
Maybe I'm just paranoid from 20 years of working with tractor trailers, but the less rubber hose specifically and external plumbing generally a vehicle has carrying coolant the less chance of breakdown and reduced maintenance.
Any thoughts on any of this is appreciated.