Well I'm the noob on this site, just bought the car, 95 J30 with about 205K miles on it, great condition, anyways the a/c is crappy and i measured the low side and found it was way to high, measured the high side and it was to low so i know i have a blockage in the evap or Expansion Valve system. My question is, does anyone on this site have a diagram of the a/c setup so i can have some what of a idea on how to take this apart instead of just going at it by my gut instinct lol . I tried searching and look through a few pages with no luck. so if any help can be giving i'd be happy. Especially cause i can't find the dang Receiver/Drier either and ya... DIAGRAMS!!!
Thanks in advanced and glad to become a member !!
Anthony
Air Conditioning Diagram, Anyone have one?
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driverdriver
- Posts: 3397
- Joined: Fri Aug 01, 2003 10:36 am
- Car: NICO's longtime resident Canuck!!!
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J30 field service manuals are here and they have both diagnostic procedures and diagrams:
http://www.nicoclub.com/FSM/J30/
http://www.nicoclub.com/FSM/J30/
Re: Air Conditioning Diagram, Anyone have one?
Just looked at the manual, does anyone have any tips for replacing the expansion valve. Must the whole dash be removed?
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swimshark
- Posts: 593
- Joined: Fri Feb 23, 2007 8:17 am
- Car: Bamboo Mist 1994 Infiniti J30 Soon to RIPs
Pearl White 1993 Infiniti J30 Project Ghost
Re: Air Conditioning Diagram, Anyone have one?
to be able to get to the cooling unit you have to remove the dash. and you will have to discharge the ac system to get the unit out. looks like youll have to pull the blower motor and then you can get the cooling unit out.
the cooling unit is pictured adjacent left of the passenger air bag
the cooling unit is pictured adjacent left of the passenger air bag
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Gerardjg
- Posts: 544
- Joined: Tue Jan 24, 2006 2:09 pm
- Car: 2007 Cobalt LS
2011 Hyundai Accent
2016 Kia Optima - Location: Central Florida
Re: Air Conditioning Diagram, Anyone have one?
To get the evaporator out you do not need to remove the whole dash or the fan,
Remove the lower trim under the glove box
remove the glove box
remove the steel plate just below the airbags.
Assuming the Freon has already been safely evacuated disconnect the 2 ac fittings under the hood passenger
side top at the firewall where the low pressure service fitting is.
Back inside the car there are 4 or 6 Phillips screws and one connector on the evap core housing. once these are out
go back under the hood and push on the 2 lines and the whole assembly will fall on the mat. I did it 3 times once to change the expansion valve
once to put in a used core which leaked and finally a new Rock Auto evaporator the third time took less then 15 minutes out and in once the system was evacuated.
click the below link for some images of the old unit and the area under the glove box the screwdriver is in one of the screw holes which mounts the core
the fourth, fifth and sixth picture show where the evap was sandwiched between the fan and the duct work.
http://s148.photobucket.com/albums/s40/ ... g/J30Evap/
Remove the lower trim under the glove box
remove the glove box
remove the steel plate just below the airbags.
Assuming the Freon has already been safely evacuated disconnect the 2 ac fittings under the hood passenger
side top at the firewall where the low pressure service fitting is.
Back inside the car there are 4 or 6 Phillips screws and one connector on the evap core housing. once these are out
go back under the hood and push on the 2 lines and the whole assembly will fall on the mat. I did it 3 times once to change the expansion valve
once to put in a used core which leaked and finally a new Rock Auto evaporator the third time took less then 15 minutes out and in once the system was evacuated.
click the below link for some images of the old unit and the area under the glove box the screwdriver is in one of the screw holes which mounts the core
the fourth, fifth and sixth picture show where the evap was sandwiched between the fan and the duct work.
http://s148.photobucket.com/albums/s40/ ... g/J30Evap/