changing coolant fluid

[notslo]

I am just about to change coolant fluid in my 2003 freightliner/winn journey with cat 330. The manual talks about making sure to get the air out of top and bottom bleeders. I could only find a bottom bleeder so called freightliner and they confirmed I only have a bottom. Is there any tricks I should know to make sure the air is out?

Thanks Bob

[siggyd]

When I changed coolant on my former 05 330 CAT, I removed one of the
stopper plugs up on the thermostats housing and filled until overflow to be sure to get all the air out.I did 2 rinsing cycles then ran the engine each time until about 140F(plugs closed and reservoir cap open).
After the final drain, I put in 6 gal. of 100% strenght coolant first,because you can not get all the distilled water out.
The whole procedure took me about 2 days,because I did not like to put cold water/coolant into a hot/warm engine.
Also run your heater fully ON and watch the coolant tank level.
If you never changed the thermostats (regulators as Cat calls them),now would be the time.

[notslo]

Thanks for the info. When I ordered the regulators the freightliner rep said there was two. I haven't checked close yet but I see the one on the top that comes from the res but where is the second one.

Thanks

[siggyd]

My thermostats were on the driver side of the engine in the same "box" side by side, with one common gasket.