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    VWVortex


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    Thread: 2003 Vw passat 2.8l dumping coolant from tank

    1. 07-31-2012 09:15 PM #1
      Hello guys and gals. I need ur advice/help. I purchase an 03 passat v6 today. After it warms up it will push the coolant out of the reservoir. Note, it's not overheating. The guy I bought it from said the coolant reservoir exploded on thursday. He said his local mechanic said it needs head gasket. What's ur take on it? When I remove the over flow hose from the reservoir and increase the rpm, very little coolant comes out. After I let go of the pedal, the coolant gushes out on the over flow hose. Thermostat is opening. Guy said the water pump, thermostat and belts were replaced last year. The problem started Thursday when the old reservoir exploded. Pls let me know what you think. I was thing of replacing the belts , water pump and thermostat with oem.

    2. Junior Member IoE GLX's Avatar
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      Jul 24th, 2012
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      2003 Volkswagen Passat GLX V6 2.8L 30Valve
      08-02-2012 12:38 AM #2
      so its not coming out when you hit the throttle but when you let go it does?

    3. 08-02-2012 04:42 AM #3
      Quote Originally Posted by IoE GLX View Post
      so its not coming out when you hit the throttle but when you let go it does?
      Yes. I'm thinking the head might have crack causing compress air to get in the cooling system.im going to put shop air in each cyl and hear for bubbles in the cooling system

    4. Junior Member IoE GLX's Avatar
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      2003 Volkswagen Passat GLX V6 2.8L 30Valve
      08-03-2012 12:54 AM #4
      .... ****, im stumped.. was anything replaced on the car like any valves?

    5. Junior Member IoE GLX's Avatar
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      Jul 24th, 2012
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      Austintown, Ohio
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      2003 Volkswagen Passat GLX V6 2.8L 30Valve
      08-03-2012 12:56 AM #5
      sounds like a circulation problem as far as flow goes, a head crack could explain it, maybe throttle opens it up and letting it go closes it up but still flowing so it spills.. ehh idk dont take my word for it just trying to troubleshoot

    6. 08-05-2012 11:20 PM #6
      Update. I put 40psi shop air to each cyl. No air bubbles in cooling system. Maybe I need to put more? I was thinking to do it again with 120psi. Any suggestion?

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