Jump to content
  • 0
chana1634

pressure in the overflow thank

Question

I have a 1999 e7 350, and i notice that coolant was coming out of the coolant tank, i install a new cap, but did not solve the problem, i remove cap, and notice a lot of coolant coming out, and coolant was just warm, on the cool side, i try to bleed the system and notice air coming out of the small hose on top of tank, the start truck again with cap on, after a few minutes i notice that coolant was pushing out a lot and stop engine, when i did stop engine , i notice like a ball of coolant and air came out a lot, then bleed air again, and run engine again, after a while start doing same coolant coming out, but right then i step on fuel, and i notice that the coolant stop coming out of the tack, let it idle again, and coolant came out air build up at idle, then i step on fuel idle hi and it stop building air in the system, when i step on the fuel, coolant stop coming our of thank, I ask any body if has any  idea, please advise, p.s never seen this before, thank your, 

Edited by chana1634

Share this post


Link to post
Share on other sites

7 answers to this question

Recommended Posts

  • 0

could be the air compressor, friend of mine chased his pushing coolant out the overflow for a long time...finally put on a new compressor and it went away

Share this post


Link to post
Share on other sites
  • 0

no i don't smell diesel in the coolant, infact i replace front head gasket, head look like was leaking oil  out of the exausted ports, but notice all good, did so some marks on the liner number 1, but i cleaned with a red clouth cleaner paper, and mark when away, I remove air compresor head gasket, install new gasket, test, and maybe did something it not building air like it was, and i notice that it is doing it, when engine is cold,

20180718_114301.jpg

20180718_114823.jpg

Share this post


Link to post
Share on other sites
  • 0

I install new compressor gasket, could it be the still do it eben with new gaskets,

Share this post


Link to post
Share on other sites
  • 0

well i i block air compressor, to engine block, but still doing it, the strange thing is that it does it when engine is cold, then i idle engine hi and water gets suck in, this is really strange, i drove truck to get temp up to 180, and no pressure build up in coolant thank, if any body has any idea, let me know please, and thank you

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...