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1994 Toyota Pickup Question: Burping cooling system

 

Question

gonzy, Camas, WA, July 29, 2012, 14:33
 Rookie

Burped, burped, and burped, but cannot get my 1994 toyota 4x4 6 cyl. to stop over heating. Heating system is not working.

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  • Answer #1

    July 29, 2012, 20:56
     Master

    From cold(overnight ) start with cap on radiator , does the system go from no pressure (rad hose soft), to lots of pressure (rad hose hard to squeeze , possibly feel bubbles going through it) in a matter of two or three minutes or less? If so , then you've probably got a head gasket issue. Get it diagnosed for sure , to make sure you don't have other issues.

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    gonzy, August 02, 2012, 15:32
     Rookie

    Thank you for your input. Actually, it solved itself. I filled the radiator and resorvoir, and left it for an hour. Came back and the res. was empty. I put more fluid in it and left it. I repeated this process until the res. remained full. I started the truck and the heater came on right away, the truck is doing fine now. Strange! Isn't it?

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    ziptie12, August 02, 2012, 18:51
     Master

    Sounds like it .patience will yield good results in many cases , and sometimes in this business the best way to 'fix' certain issues is to watch and observe as you've found. keep an eye on it for a few more drive cycles and remember my first response if you notice it repeating itself with the air issue.

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