Register Login
FIAT Auto Specialist Team
Reply
 
Thread Tools Search this Thread
Old 10-05-2019   #1
Join Date: Mar 2017
Location: Dorset
Posts: 65
Thanks: 0
Trader Rating: 0
United Kingdom 
No hot air from heater / Sloshing noise

Hi All

I'm trying to find out why the mother-in-laws 2010 Fiat Panda 1.1 Active Eco is not producing hot air from the heater vents even when the engine temperature is up. On top of that there is a sloshing water sound coming from behind the dashboard, and it's not the usual issue of water being collected in the bulkhead caused by blocked drain plugs. Also, her engine seems to run a lot hotter than normal, hitting at least 3/4's on the temperature gauge. I've noticed there are quite a lot of posts on here relating to no hot air from the vents, but most, if not all I've seen, relate to Pandas with AC / Climate Control, the in laws Panda doesn't have either of these.

We suspected thermostat so we replaced that and also replaced the coolant in her car and ensured the system has been bled, but still no heat is coming from the vents, and the sloshing water noise is always there. I have noticed that the coolant level in the expansion tank can appear low one day, yet another day might be right up the neck of the expansion tank, to me that sounds like pressure is not being kept up with the cooling system. I've checked the oil and underneath the oil filler cap and there doesn't seem to be any signs of oil contamination, so I'm totally stumped.

Any ideas what might be going on, or other things to investigate would be greatly appreciated, the in law is starting to worry about driving the car now, and it would be nice to get her on the road again so she doesn't keep asking for lifts here and there!!!
Likes varesecrazy liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

bigshorty is offline Reply With Quote Quote 
Old 10-05-2019   #2
Join Date: Apr 2011
Location: Near the M4
Posts: 29,264
Thanks: 1155
Trader Rating: 0
varesecrazy has donated!
United Kingdom 
Re: No hot air from heater / Sloshing noise

Hi.

Still sounds like an airlock

On my 1.1..

I overfill the header.. to the bottom of filler neck.. open bleed taps to make sure fluid is in there ok..

Then let motor heat through with rad cap off... will bubble away..and selfbleed.

Charlie
Thanks koalar thanked for this post
Likes Pugglt Auld Jock, koalar liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

varesecrazy is offline Reply With Quote Quote 
Old 10-05-2019   #3
Join Date: Oct 2016
Posts: 3,634
Thanks: 391
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

are you sure the slash isn't a puddle of water under the windscreen due to blocked drains ??


bubbling water is due to air or gas in the system
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by koalar; 10-05-2019 at 20:44.
koalar is offline Reply With Quote Quote 
Old 10-05-2019   #4
Join Date: Oct 2016
Posts: 3,634
Thanks: 391
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

there's two blead screws.

one on top of the radiator and one on top of the heater hose
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

koalar is offline Reply With Quote Quote 
Old 10-05-2019   #5
Join Date: Oct 2016
Posts: 3,634
Thanks: 391
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

the fact the bottle jumps to full indicate its not bleed properly.



the fact the bottle sometimes empty would explain why the temperature gauge sometimes reads 3/4 as there's about 2 litres short of coolant
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

koalar is offline Reply With Quote Quote 
Old 10-05-2019   #6
Join Date: Oct 2016
Posts: 3,634
Thanks: 391
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

needs sorting ASAP 3/4 is way too hot.

start the car from cold.

do the coolant hoses go firm or rock sold ???


when they are firm stop the engine. Undo the bleed screw on the heater hose. You should hear air come out. Tighten the screw. Wait until the engine has cooled. Open the radiator cap to let air into to system from the top again. Top up if needed and tighten the cap again.

repeat until coolant comes out of the bleed screw.


the undo the bleed screw on the top of the radiator and fill up until coolant starts to come out. Replace and you should be good to go.


if it need bleeding again its likely you have a small leek or unlikely the head gasket has gone
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

koalar is offline Reply With Quote Quote 
Old 10-05-2019   #7
Join Date: Oct 2016
Posts: 3,634
Thanks: 391
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

Quote Originally Posted by varesecrazy View Post
Hi.

Still sounds like an airlock

On my 1.1..

I overfill the header.. to the bottom of filler neck.. open bleed taps to make sure fluid is in there ok..

Then let motor heat through with rad cap off... will bubble away..and selfbleed.

Charlie

my bleeds like this fine. The others will only bleed if the system is pressurised. Although that car has the larger 1.2 radiator on a 1.1 car and a pattern part heater matrix.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

koalar is offline Reply With Quote Quote 
Old 11-05-2019   #8
Join Date: Sep 2009
Posts: 17,541
Thanks: 901
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

The car has been used with the coolant gurgling so there's a strong risk the head gasket has been weakened or even blown. The FIRE engine is tough but in common with all low coolant volume engines it wont tolerate boiling in the cylinder head. If it refuses to bleed, you need to get the engine tested for head gasket failure.

If you do manage to bled it properly, keep a VERY close watch on coolant level. If it's dropping, find and fix the leak. If you can't find a leak get the coolant tested for hydrocarbons, cylinder compressions, etc..
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by DaveMcT; 11-05-2019 at 12:13.
DaveMcT is offline Reply With Quote Quote 
Old 12-05-2019   #9
Join Date: Mar 2017
Location: Dorset
Posts: 65
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

Many thanks to all for your comments and suggestions.

I can confirm that the problem is not to do with trapped water in the bulkhead trough. A few others have mentioned head gasket could be blowing, this has made me more inclined to believe this as she has recently told me she has topped up the expansion tank on a few occasions.

Our son is a mechanic and said that he will have a look today, he said he was going to see if there are any signs of leaking between the bulkhead and dashboard that might not be easily visible. If not then I will get the in law to get a compression test done. Personally, I still think what the majority of you guys are saying and that is that the cooling system is proving really tough to bleed properly, but I think we'll leave it to the mechanics to try and identify.

Again, many thanks to all who posted here, it is greatly appreciated, and I will update this thread with anything that is discovered.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

bigshorty is offline Reply With Quote Quote 
Old 12-05-2019   #10
Join Date: Aug 2013
Posts: 4
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

Good Morning,

Have just seen this, extremely similar to an issue I had. Whilst my heater actually worked, I used to hear a sloshing noise often on start up, that sounded as if was coming from passenger footwell site. Assumed system needed bleeding and tried everything without success. Eventually it transpired their was a small leak from water pump, that I guess let air in. This eventually caused head gasket failure although actual level never dropped that much, well until the end!

Guess it doesn’t take the level to drop that much to cause problems, so good luck.
Likes Pugglt Auld Jock, varesecrazy liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by ian1509; 12-05-2019 at 09:33.
ian1509 is offline Reply With Quote Quote 
Old 13-05-2019   #11
Join Date: Sep 2009
Posts: 17,541
Thanks: 901
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

Ethylene glycol coolant (from a blown head gasket) will kill the exhaust oxygen sensors. Make sure these are proven as ok or replaced when the engine is rebuilt.
Likes Pugglt Auld Jock liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

DaveMcT is offline Reply With Quote Quote 
Old 13-05-2019   #12
Join Date: Mar 2017
Location: Dorset
Posts: 65
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

Well, found out the issue. Mother in law had a compression test done and it turns out the head gasket if blowing. £350 to get the head skimmed, new gasket fitted and sensors checked.

Could have been worse for her I guess, but at least we know the issue.

Cheers all for your comments and advice, much appreciated.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

bigshorty is offline Reply With Quote Quote 
Old 13-05-2019   #13
Join Date: Sep 2009
Posts: 17,541
Thanks: 901
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

Well done for sussing the problem. You do need to find the culprit.

It could be water pump but you have a new one fitted along with the new cam belt so that's no problem. Other options are radiator leak (corrosion gets them eventually) or the steel coolant pipe that runs behind the exhaust manifold. It's easy to access with the head removed so get that changed anyway.
So get the rad checked and have the pump and steel pipe changed as a matter of course. Apart from the rad tests, there should not be any additional labour costs.
Likes Pugglt Auld Jock liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

DaveMcT is offline Reply With Quote Quote 
Old 13-05-2019   #14
Join Date: Oct 2017
Location: Edinburgh Scotland
Posts: 4,387
Thanks: 437
Trader Rating: 0
Pugglt Auld Jock has donated!
United Kingdom 
Re: No hot air from heater / Sloshing noise

Quote Originally Posted by DaveMcT View Post
Other options are the steel coolant pipe that runs behind the exhaust manifold. It's easy to access with the head removed so get that changed anyway.
So get the rad checked and have the pump and steel pipe changed as a matter of course. Apart from the rad tests, there should not be any additional labour costs.
We've had a number of Pandas in the family over the years. Two of my children learned to drive in them and had Pandas as their first cars. That steel pipe Dave mentions is always suspect. It can leak due to corrosion of the metal of the pipe itself or degradation of the rubber sealing ring where it fits into the rear of the water pump. As it's tucked away behind the exhaust manifold/manicat is a little difficult to see. Changing it when the manifold is removed - for instance during a head off job - is really much easier than with head and manifold in place. The first Panda we had (1992 Panda Parade) blew it's head gasket because of this pipe leaking even though I kept it topped up all the time. I now carefully check the pipe on both our present Panda (2010 1.2 Panda Dynamic Eco) and my boy's Punto (2012 1.4 8 valve VVT) every time I service them and we keep on top of it with a weekly fluid level check. Any fall in level, however slight, is immediately investigated.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Pugglt Auld Jock is offline Reply With Quote Quote 
Old 13-05-2019   #15
Join Date: Oct 2016
Posts: 3,634
Thanks: 391
Trader Rating: 0
United Kingdom 
Re: No hot air from heater / Sloshing noise

Quote Originally Posted by bigshorty View Post
Well, found out the issue. Mother in law had a compression test done and it turns out the head gasket if blowing. £350 to get the head skimmed, new gasket fitted and sensors checked.

Could have been worse for her I guess, but at least we know the issue.

Cheers all for your comments and advice, much appreciated.

needs the head skimmed without inspection ?
Likes Pugglt Auld Jock liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

koalar is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
(T) Only cold air out of heater when on hot setting ALMYPAL Palio 1 23-08-2018 09:23
(T) no hot air from heater unit navinpillay Palio 3 10-03-2016 19:58
(T) heater not blowing hot air pompeylad2514 Bravo 2 04-02-2015 15:58
(T) no hot air from heater ArdKor Cinquecento / Seicento 2 25-01-2015 03:17
(T) Constant Hot Air from Heater Nodfiat Marea 5 05-06-2008 08:11