No air relief plug on heater hose - can't bleed cooling system
#1
No air relief plug on heater hose - can't bleed cooling system
Hello all,
According to the FSM, there should be an air relief plug on my heater hose, but the hose is solid and there is no plug in it. I have visually confirmed the presence of the plug on other G37 cars, but on mine it is missing, just has a solid hose. Can you guys check on your heater hose to see if you have the plug there? According the FSM, it is a key step to filling the cooling system so that air can be released while filling the coolant.
In the picture, the heater hose is (2) and the air relief plug is (1).
According to the FSM, there should be an air relief plug on my heater hose, but the hose is solid and there is no plug in it. I have visually confirmed the presence of the plug on other G37 cars, but on mine it is missing, just has a solid hose. Can you guys check on your heater hose to see if you have the plug there? According the FSM, it is a key step to filling the cooling system so that air can be released while filling the coolant.
In the picture, the heater hose is (2) and the air relief plug is (1).
#6
Word from one of the local master techs is that Infiniti decided not to put the air bleeder screw on some cars - for those vehicles it will be necessary to use the special Nissan cooling system vacuum tool to get all the air out without causing damage. I have found the procedure outlined for a 2008 Nissan Altima. My guess is that the procedure would be the same for the G37 models without the air relief plug in the heater hose.
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#9
Lexus Defector
iTrader: (60)
When I bought one, it wasn't just he plug itself. I had to buy the entire assembly that has the whole plastic piece (I cannot for the life of me think of the correct word for it at the moment) that splices into the middle of the hose that has the plug in it. It wasn't too expensive, but I can't remember how much. I used the plug that I needed and threw the rest away. It's probably cheaper and easier than using the vacuum tool. Just cut the hose and splice in the piece.
I can't imagine why they would change this design to make it more difficult other than to force people to bring their car in for coolant service rather than DIY.
I can't imagine why they would change this design to make it more difficult other than to force people to bring their car in for coolant service rather than DIY.
#10
When I bought one, it wasn't just he plug itself. I had to buy the entire assembly that has the whole plastic piece (I cannot for the life of me think of the correct word for it at the moment) that splices into the middle of the hose that has the plug in it. It wasn't too expensive, but I can't remember how much. I used the plug that I needed and threw the rest away. It's probably cheaper and easier than using the vacuum tool. Just cut the hose and splice in the piece.
I can't imagine why they would change this design to make it more difficult other than to force people to bring their car in for coolant service rather than DIY.
I can't imagine why they would change this design to make it more difficult other than to force people to bring their car in for coolant service rather than DIY.
#13
Just say no!!!!!
iTrader: (14)
The pic in the OP, is that looking from the driver side or passenger side? I'm having a hard time figuring out what angle they're looking at it from. What's the disc like object in the top right hand corner with the stud protruding?
Here's some pics I took from my 2012 that i've been meaning to upload. These are large (4MB+)
1 http://tinyurl.com/dy2hln8
2 http://tinyurl.com/cflsvkm
3 http://tinyurl.com/cybnqsg
4 http://tinyurl.com/d8noo4l
5 http://tinyurl.com/btp2owq
6 http://tinyurl.com/cjfak63
7 http://tinyurl.com/crfmt75
Doesn't look like there's any bleeder screws present here. I wonder if the clamp on one of the throttle body hoses can be loosened to allow air to escape... ?
Edit: In pic #6, on the passenger side (this is one of the heater hoses right)? Assuming so, there is a coupler there, not no bleeder. Probably be easy to install something on the driver side (pic 1 to pic 3).
Here's some pics I took from my 2012 that i've been meaning to upload. These are large (4MB+)
1 http://tinyurl.com/dy2hln8
2 http://tinyurl.com/cflsvkm
3 http://tinyurl.com/cybnqsg
4 http://tinyurl.com/d8noo4l
5 http://tinyurl.com/btp2owq
6 http://tinyurl.com/cjfak63
7 http://tinyurl.com/crfmt75
Doesn't look like there's any bleeder screws present here. I wonder if the clamp on one of the throttle body hoses can be loosened to allow air to escape... ?
Edit: In pic #6, on the passenger side (this is one of the heater hoses right)? Assuming so, there is a coupler there, not no bleeder. Probably be easy to install something on the driver side (pic 1 to pic 3).
Last edited by JSolo; 10-17-2012 at 03:55 PM.
#14
The pic in the OP, is that looking from the driver side or passenger side? I'm having a hard time figuring out what angle they're looking at it from. What's the disc like object in the top right hand corner with the stud protruding?
Here's some pics I took from my 2012 that i've been meaning to upload. These are large (4MB+)
1 http://tinyurl.com/dy2hln8
2 http://tinyurl.com/cflsvkm
3 http://tinyurl.com/cybnqsg
4 http://tinyurl.com/d8noo4l
5 http://tinyurl.com/btp2owq
6 http://tinyurl.com/cjfak63
7 http://tinyurl.com/crfmt75
Doesn't look like there's any bleeder screws present here. I wonder if the clamp on one of the throttle body hoses can be loosened to allow air to escape... ?
Edit: In pic #6, on the passenger side (this is one of the heater hoses right)? Assuming so, there is a coupler there, not no bleeder. Probably be easy to install something on the driver side (pic 1 to pic 3).
Here's some pics I took from my 2012 that i've been meaning to upload. These are large (4MB+)
1 http://tinyurl.com/dy2hln8
2 http://tinyurl.com/cflsvkm
3 http://tinyurl.com/cybnqsg
4 http://tinyurl.com/d8noo4l
5 http://tinyurl.com/btp2owq
6 http://tinyurl.com/cjfak63
7 http://tinyurl.com/crfmt75
Doesn't look like there's any bleeder screws present here. I wonder if the clamp on one of the throttle body hoses can be loosened to allow air to escape... ?
Edit: In pic #6, on the passenger side (this is one of the heater hoses right)? Assuming so, there is a coupler there, not no bleeder. Probably be easy to install something on the driver side (pic 1 to pic 3).
Pic #6 looks like passenger's side, bleed valve should be in the same type of heater hose, just on the driver's side. The coupler you have there on the passenger's side is similar to the one we need on the driver's side, except that the driver's side should have a screw going into the coupler allowing for air bleeding.