transamz2000

Hi guys i have a 97 transam lti i have to replacea leaking radiator is it best to remove the radiator and fans from the top or bottom?also what size is the heater hose coming from the water pump it has a compressed metal fitting around it i need to replace it because it is leaking from around the metal,i looked at shoebox drawing and they say it has a flow control vavle (restrictor) inside the metal fitting,if i just put regular heater hose on it will it still work?

Thanks

Troy

BlackScreaminMachine

iTrader: (17)

As for the hose, I am not sure, to be honest, if you need to replace, do it w/ factory. I also have used that fitting to bleed the system. Removing the fans is best from bottom, then take all the hoses off as well as cooler lines (if you have them), Seperating it from the A/C will be the hardest part.

klujan13

iTrader: (11)

I don't know how similar the lt1 is to the ls1 one but I pulled my radiator from the top however installing the new one was way easier from the bottom.

98pontiac

I did everything from the top. Took me 1.5hrs total burping coolant and testdrive was under 2. two trans cooler lines two hoses, one sensor, and two connectors on the fans. I beleive the heater lines are 5/8 but not 100% on that. My heater lines do not have a heater control valve...