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Inefficient heater

Tiny
RWNLEE
  • MEMBER
  • 1995 VAUXHALL ASTRA
  • 4 CYL
  • 2WD
  • MANUAL
  • 95 MILES
Think there may be an airlock as heater is not very efficient. Unable to locate the bleed nipple - I expected it to be located near / on the expansion chamber. Can you advise
Friday, January 22nd, 2010 AT 4:19 PM

6 Replies

Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
Start by removing and replacing the thermostat and flushing out the cooling system. Add 1 litre coolant. Start engine, let idle. Refill cooling system to correct level. Turn interior heater on full hot. When vehicle reaches operating temperature check coolant level is good and replace cap air should be out of system
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Sunday, January 24th, 2010 AT 4:12 AM
Tiny
GOOLAMKAROLIA
  • MEMBER
  • 4 POSTS
Firstly I must thank you guys for assisting free of charge God be with you guys. My reply is I flush my system every year only I have stop putting anti freeze because I cannot afford it and the water is coming out from the right side of the radiator tank seal if need be where is the thermostat and I will have to remove the radiator as it would require a new seal also if you could send a video on how to remove and fit the radiator. Most importantly I need to blog of the water from coming into the car and loose water.I need your assistance how to blog off the pipes I see two pipes by the firewall then I also see other two pipes which I think is the overflow because I see drops of water coming out from there.I think I want to start of to blog of the pipes so that the water won;t come into the car and I don't loose water which would give me enough time to attend to the radiator and I will be mobile and I will be able to see whats more wrong with the radiator hopefully I will only have to replace the the seal
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Friday, August 10th, 2018 AT 2:34 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,262 POSTS
It sounds like you want to bypass the heater core and replace the radiator? To bypass the heater core remove both hoses and use a short 16mm pipe to connect them using hose clamps. Here is a guide to help you replace the radiator your car will be a little different but the method is the same:

https://www.2carpros.com/articles/how-to-replace-a-car-radiator

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken

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Monday, August 13th, 2018 AT 2:44 PM
Tiny
GOOLAMKAROLIA
  • MEMBER
  • 4 POSTS
Thank you very much, much appreciated God bless. Kind regards, Goolam
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Thursday, August 16th, 2018 AT 11:28 PM
Tiny
GOOLAMKAROLIA
  • MEMBER
  • 4 POSTS
Thanks Ken. I need to replace the heater core. It seems like the whole dash has to come off. Please assist with picture from guide. God Bless, thank you. Kind Regards, Goolam.
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Thursday, August 16th, 2018 AT 11:45 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,262 POSTS
Yes, the heater plenum with need to come out to replace the heater core. Does the car have AC? If so you will need to vacuum down and recharge the system.

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

and

https://www.2carpros.com/articles/replace-heater-hoses

Here are some below that will give you more detail not the same car but the procedure is very similar.

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
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Friday, August 17th, 2018 AT 10:45 AM

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