Cooling System

[raysobo]

is there an air bleeder on the throttle body, do you need to bleed system when flushing systed

[peteking]

No air bleeder on the TB, as far as I'm aware. MountaineerTom wrote this Coolant Purging Wiki, a while back. Seemed to work when I performed the proceedure in my old truck. Haven't tried it on my 2005 yet.

 

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If you have a gurgling sound coming from what sounds like inside the dashboard, you probably have and air pocket in your cooling system. It's an easy fix, here's what you need to do.

 

1) Get a jug of DEXCOOL.

2) Park on level ground.

3) The engine needs to be cool, or just slightly warm is fine too.

4) Add fluid in the surge tank until the level is slightly above the split line on the tank (an inch or so).

5) Put cap back on loosely, don't allow it to build pressure.

6) Start engine and let it idle for a minute.

7) Cycle the engine from idle to 3000rpm in 30-second intervals until the engine coolant reaches operating temp and the thermostat opens.

8) Shut off engine and remove the cap.

9) Start engine and let it idle for a minute. Fill the tank to 1/2 inch above the "Cold Full" mark on the tank & put cap back on loosely.

10) Cycle the engine like before and wait for the thermostat to open again, then shut off the engine.

11) Put more fluid in if necessary, the fluid should be a half-inch or so above the Cold Full mark.