C5 CITERON ESTATE PRESSURE IN COOLING SYSTEM

  • Tiny
  • alfie1stephen
  • 2002 Citroen C5
  • 126,000 miles

Loosing 500ml every 250 miles pressure build up not over heating new radiator' themastat'including allpipes (retun to coolent tank?

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Sunday, November 13th, 2011 AT 2:00 PM

4 Replies

  • Tiny
  • hmac300
  • Expert
  • 44,316 posts

We don't have any info for this car but have it pressure checked to see if the head gasket or intake gasket is leaking. Especially with the coolanloss you have.

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Sunday, November 13th, 2011 AT 2:54 PM
  • Tiny
  • fixitmr
  • Member

Pressure and expansion of coolant is normal the coolant goes into reserve tank and returns to system when cooling off when engine is off. Bad radiator cap can prevent this return. Did you get new cap?

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Sunday, November 13th, 2011 AT 3:07 PM
  • Tiny
  • alfie1stephen
  • Member

Have new pressure cap on return tank

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Sunday, November 13th, 2011 AT 3:44 PM
  • Tiny
  • fixitmr
  • Member

If vehicle does not have radiator cap then it is not a return/overflow tank but an integral expansion tank. Coolant loss is either external leak somewhere or internal and escaping thru exhaust.

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Sunday, November 13th, 2011 AT 5:01 PM

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