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Cant open coolant cap

gazza975526570
gazza975526570 Posts: 3,275 Forumite
Part of the Furniture 1,000 Posts Name Dropper Combo Breaker
in Motoring
Wanted to top up coolant on my Vectra. Cap was a little tight and when it has come off just the top part of the cap has come off, meaning its still fully locked and cant get into it to add coolant.

Any ideas?!

Comments

  • Sgt_Pepper_2
    Sgt_Pepper_2 Posts: 3,644 Forumite
    Get some grips on it.
  • Splott
    Splott Posts: 225 Forumite
    But only when you've got a replacement cap. This has the ability to turn into a break it into bits to remove it job.
  • Strider590
    Strider590 Posts: 11,874 Forumite
    edited 20 January 2013 at 3:25PM
    Splott wrote: »
    But only when you've got a replacement cap. This has the ability to turn into a break it into bits to remove it job.

    ^^ Agreed you cannot drive it without the correct cap in place, they have an internal pressure valve.
    No pressure = coolant boils = air bubbles in the system = engine damage.
    Excess pressure = coolant forces it's way through various seals (most likely at the edges of the radiator) = loss of coolant = engine damage.

    I got one on Ebay for £6.
    “I may not agree with you, but I will defend to the death your right to make an a** of yourself.”

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  • techspec
    techspec Posts: 4,464 Forumite
    Did you press down on it before turning?
  • mattyprice4004
    mattyprice4004 Posts: 7,492 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    gazza975526570 wrote: »
    Wanted to top up coolant on my Vectra. Cap was a little tight and when it has come off just the top part of the cap has come off, meaning its still fully locked and cant get into it to add coolant.

    Any ideas?!

    Drill it out, or new header tank. Get a new cap first though
This discussion has been closed.
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