Notices

Coolant system issue? Please help!

Old 09-16-2014, 08:19 AM
  #1  
redcivicforever
Senior Member
Thread Starter
 
redcivicforever's Avatar
 
Join Date: Oct 2004
Location: CO
Posts: 166
Likes: 0
Received 0 Likes on 0 Posts
Default Coolant system issue?

I'm having an issue with my 91 civic dx 1.5L.

My Dad just had the head resurfaced, put a new head gasket, radiator, timing belt, water pump, thermostat, radiator cap. All was good after the above work was done until about 1 & 1/2 months later.=-then it started transferring coolant between the overflow reservoir and the rad and back again. After driving it, the overflow is about an inch or so over the max fill line, after sitting for a while the radiator seems to suck most of the fluid back until the reservoir is barely over the fill line. This happens everytime I drive it, now. It isn't overheating, per the temp gauge, anyway. I also can't see any antifreeze on the ground or anywhere under the hood, though. In 2 months since the job was done now, the rad only needed to be topped off once, about a 1/2 cup.

Anyone have any ideas what to have checked or do next? What could be the cause? I appreciate any help.

Last edited by redcivicforever; 09-16-2014 at 08:42 AM.
redcivicforever is offline  
Old 09-18-2014, 07:02 PM
  #2  
ChrisS
Senior Member
 
ChrisS's Avatar
 
Join Date: Dec 2004
Location: San Jose, CA
Posts: 347
Likes: 0
Received 0 Likes on 0 Posts
Default

Sounds like the coolant system is working correctly. (xferring coolant back and forth to the coolant reservoir is normal)

Best practice:
-fill coolant reservoir to min level
-purge all the air out of the coolant system (run the engine with the radiator cap off; allow engine to come up to operating temp; use the little coolant bleeder nut on the top radiator hose connection near the engine block to burp any trapped air)
-top off radiator
-fill the coolant reservoir to the halfway point between min and max
-put the radiator cap back in place
(monitor coolant level by looking at coolant reservoir and add coolant to the reservoir when low)
ChrisS is offline  

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: