LS Overheats after Coolant Flush

[dox]

Hello everyone, new to posting but I've been lurking in the shadows for some time now. Last weekend I decided to drain the cooling system due to the fact that I had no heat in my car. I followed the guide but now my LS is overheating.

2001 Lincoln LS V8

I am experiencing the following:

- Fan running high at regular temperature (half way point).
- White smoke and coolant bubbles coming from the engine fill cap.
- Heat still blows cold air.

Before flushing the system I only had lack of heat.

Any ideas?

 

[oddball]

Did anything break? How did you drain the coolant? One of the plastic pieces may have been marginal, and now it's actually broke.

It's really, really, --really-- easy to break the thermostat tower. I broke out the hex drive on the original one. Sounds like it either broke or has a small hole. Check it real carefully, and look into the aluminum replacement tower for the Jags.

 

[joegr]

Did you completely and correctly follow the bleeding instructions?
Did you get a steady stream of coolant out the heater bleed at the end?

I assume that you really only changed most of the coolant instead of flushing it?

Do you really mean the engine fill cap (if so, it is now defective) or do you mean the fill cap on the degas bottle?

 

[tireman]

no heat?

No heat is likely a failed DCCV. Incorrect bleeding leaves air in system. replace DCCV is you have not done so, rebleed correctly.

 

[dox]

Thanks for the reply guys. I think I did crack the engine fill cap, I tightened it a little to hard and heard a cracking sound. I can't even use the same hex bit (10mm) that I once used to remove the cap as the hole seems to have warped.

I'm thinking I would have to remove the thermostat housing and twist the cap of (if that works). Is there any work around to this problem?

 

[Kumba]

If you can't get it off with the hex drive then maybe a pipe-wrench. Although it sounds like you should just plan to replace the whole thermostat tower.