Volvo RWD 200 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 11/2006 200 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

No heat 200 1990

posted by  CLL on  Thu Feb 15 10:14 CST 2024
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

Once in awhile I've been putting stopleak in my 240 wagon to help seal a slight weeping at the water pump. As months went by the heat output has grown less, and now just blows air! Probably related, right? What can I do to get some heat back? Thanks, Chris








  REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

Use all other suggestions you have here.

Use of stop leak for an enduring period can cause clogs.

So get onto your dyin' feet and dissemble the cooling system. As you must remove all that is the center of 240, inspect it for clogs.

Read the current article OVERHEATING QUESTION:

https://www.brickboard.com/RWD/volvo/1691034/220/240/260/280/overheating_question.html

The stop leak material, if you have used it for an extended period will settle at the lowest level, of the heater core. Or, a clog may be at the heater core valve interior assembly if you cannot. As Mr. Stevens says.

Drain and flush. Use a new HEPU or as Mr. Arty B. suggests on his site at:

https://cleanflametrap.com/heater_core/

https://cleanflametrap.com/

Arty B.: The Volvo 240 Godfather!


--
Give your brickboard.com a big thumbs up! Way up! - Roger Ebert & Gene Siskel

Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.





  REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

Think heater control valve. It's to the right of the gas pedal tucked in against the firewall behind the blower housing. The early ones had a thermal probe and an adjustable saddle screw, but I don't think the later ones did. You can sometimes get a bit more life out of them with cable adjustment.
--
Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now



Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.





  REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]


Check your coolant level and top it up if need be.

It sounds counterintuitive but when the level slowly falls, at a certain point the engine is still cooling but you won't get any interior heat.


--
'79 242, '84 DL 2 door, '80 DL 2 door, '89 DL Wagon, '15 XC70 T6 AWD



Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.





  REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]


What does your temperature gauge say? Sounds like a bad thermostat. Stuck open.

Do you check your antifreeze level often? How much is it leaking? Using a lot of stop leak can clog your heater core.

--
Will I buy another Volvo??? We'll see....



Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.





  REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

I'd look into how hot (or not) the hoses to the heater are. Should be HOT going in -- not as hot coming out. I'd put my money on a clogged heater core. Even with a wide open thermostat an engine will make some heat. - Dave



Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.




<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.