No heat!!

Q

Quincy

Member +
Well i have no heat coming up the vents in the car so i changed the thermostat and still no joy any help welcomed!!! :mad:
 
Q

Quincy

Member +
Yea the neddle inside is showing that it heats up!!the top pipe on the rad is warm but the bottom one is cold!!
 
A

Adam_Glanza

Member +
if the waters going into the rad warm and coming out the other end cold it says to me the rads blocked?

shudnt be the matrix
 
D

DodgyDan

Member +
Adam_Glanza said:
if the waters going into the rad warm and coming out the other end cold it says to me the rads blocked?

shudnt be the matrix
Click to expand...

is it me, but its that the whole idea of the rad. lol :)

Make sure u got enough water and antifreeze or the coolant wont carry the heat. if every thing seems okay i would recomend a fully flush through. and check and see if any of the coolant pipes are a little cruchy. Worst case might be a nackered water pump.
 
A

Adam_Glanza

Member +
yeah but thats to the extreme, water NEVER comes out of the radiator COLD it might be less warm but never cold thats just silly.

and especially if its cold on idle there wont be any water being cooled by air
 
12345678

12345678

Member +
Quincy said:
Yea the neddle inside is showing that it heats up!!the top pipe on the rad is warm but the bottom one is cold!!
Click to expand...

if it is blocked that badly you might need a new rad.
has it been run without anti-freeze for a while? if you squeeze the radiator pipes you will feel the "crusty-ness" which is the build up of rust
 
Dave.

Dave.

Member +
http://www.toyotagtturbo.com/forums/showthread.php?t=30636

dave-gtturbo said:
Great info in here mate:

http://www.toyotagtturbo.com/forums/showthread.php?p=313311

and here:

http://www.toyotagtturbo.com/forums/showthread.php?p=282557#post282557

My experience in this area...

dave-gtturbo said:
Its more than likely a build up of gunge in the heater matrix, its very common. This then impedes the flow of hot coolant to the matrix, and in turn reduces the heat from it...

I'd put a good rad flush do it. Holts (over here in the UK, not sure what brands in Canada) do a 'Rad Flush' or 'Radiator Flush' which loosens up the grime and gunk.

If this fails, you'd need to find the two coolant pipes which go to the matrix (on the bulkhead) and flush them with a good powerful hose.... This should blast any gunk through it.

If this doesnt work (and It didn't on my old GT) I'd switch to something more drastic... I used a drain unblocker (the screw type you just feed in) to bite into the rubbish and pull it free, followed by a blast with the hose. Wasn't long till the water in and water out of the matrix was crystal clear - then my heaters worked incredibly well.

Dave
Click to expand...

Hope some of that helps you mate, its a huge amount of info and this area has been really well covered in the past :)

Dave
Click to expand...



Covered this in detail just a few days ago, and I've linked to lots of good posts in my post in the above thread :)

Dave
 
Q

Quincy

Member +
12345678 said:
if it is blocked that badly you might need a new rad.
has it been run without anti-freeze for a while? if you squeeze the radiator pipes you will feel the "crusty-ness" which is the build up of rust
Click to expand...

just put anti-freeze then it started to fuck up!!
DodgyDan said:
is it me, but its that the whole idea of the rad. lol :)

Make sure u got enough water and antifreeze or the coolant wont carry the heat. if every thing seems okay i would recomend a fully flush through. and check and see if any of the coolant pipes are a little cruchy. Worst case might be a nackered water pump.
Click to expand...

pipes are fine in it and there was a new rad put into it before i got it!!
dave-gtturbo said:
http://www.toyotagtturbo.com/forums/showthread.php?t=30636





Covered this in detail just a few days ago, and I've linked to lots of good posts in my post in the above thread :)

Dave
Click to expand...

sound lad
 
S

Shooting Starlet

Member +
yeah it helped me out but i also have had a blocked rad cost me £170 with large trade discount for a new one non genuin rad will be same as above
p.s listen to dave was a good link...... bare in mind just because temp gauge reads mid way thats not the normal operating temp give it a drive for 5 mins then let it idle until fan kicks in then feel the pipes
other things to try....
flush heater matrix
flush rad
adjust heater box control in passenger footwell <--- cured mine with this
 
Q

Quincy

Member +
Shooting Starlet said:
yeah it helped me out but i also have had a blocked rad cost me £170 with large trade discount for a new one non genuin rad will be same as above
p.s listen to dave was a good link...... bare in mind just because temp gauge reads mid way thats not the normal operating temp give it a drive for 5 mins then let it idle until fan kicks in then feel the pipes
other things to try....
flush heater matrix
flush rad
adjust heater box control in passenger footwell <--- cured mine with this
Click to expand...

how do i adjust the heater box control was lookin but didnt realy know what i was lookin for?? tanxs for info:) pics would help??
 
Last edited:
Nippon

Nippon

Member +
Lol. These threads about heating always come up when it gets to winter. I was asking for advice last year cos mine was acting funny. Never about driving around in a freezing cold car.
 
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