air pocket?

Discussion in '2.5 Engine' started by sgull, Oct 19, 2013.

  1. sgull

    sgull Member

    I recently drained quite a bit out of the cooling system from my '98 2.5L when I disconnected the coolant bypass hose at the engine block which runs up to into intake manifold so I could remove the intake manifold. I captured all the coolant that drained out, maybe a good gallon and a half I'd say.

    Now after refilling the cooling system (after reinstalling the intake manifold), the coolant level is full in the radiator and in the overflow tank before I've replaced all of the coolant which originally came out. I'd say I've still got close to a third of a gallon remaining. When I refilled the coolant I made sure the heater valve was open, and I've run the engine and driven the truck around a few days now, topping off the coolant as it would take more.

    But it seems to be remaining "full" now when I check the level, not going down anymore to accept the remaining amount of coolant which was in it previously. This leads me to believe there must be an air pocket within the coolant system that would need to be bled out. However, there seems to be no sign of abnormality otherwise; the heater is putting out good heat, the temperature gauge is acting normally, and the engine is running normally.

    Is there some trick to making sure all the air gets bled out of the cooling system for this engine? Should I just wait it out with a few more days of driving around and figure the air will work itself out and top just top it off gradually off as it might finally accept the remaining coolant?
     
  2. Ranger Forum Sign Up!

    Join RangerForum.com Today - It's Totally Free!

    Are you a Ford Ranger fan? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's a great place for Ford Ranger Fans to meet online.
    Once you join you'll be able to post messages, upload pictures of your Ford, and have a great time with other Ranger fans. Whether your an old timer or just bought your Ford you'll find that Ranger Forum is a great community to join. Best of all it's totally free!

    Join RnagerForum.com Today! JOIN FOR FREE

  3. DeanMk

    DeanMk Member

    sgull,

    I am currently having a similar problem - http://www.rangerforum.com/threads/no-heat.10388/
    Were you ever able to fit the rest of the coolant into your engine, or did you just leave it a little shy of what you took out of it?
    In my case, the engine runs fine, but I have no heat and the temp gauge does not respond. The heater hoses are also barely warm.


    Dean
     

Share This Page