Xterra A/C Problems 2001

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

-=Blackcatbomber=- - 12 May 2009 22:27 GMT

I have been struggling with the repair of my A/C for the last 2
seasons. The compressor cycles on and off on hot days and will not
cool. If it is a cooler day this does not happen. It blows ice cold.
Whe I first started having problems I lost a coolant due to a leaking
high pressure hose. According to the nissan parts dept this is a very
common problem. I suspectthere is something else wrong with the system
that would cause all these trucks A/C hoses to leak. When I replaced
the hose and dryer I vacuumed down the system. And refilled it. The
pressures did not seem just right i cant remember the particulars due
to it being over a year. The system has not lost any coolant. After
reading on the web I came across the suggestion of the Thermo Control
Amplifier and thought this may help this was replaed and no
difference. I did notice one thing when I switch to the different
modes on the controls such as defrost A/c floor and such it is a bit
hard to turn. My thoughts are that perhaps the doors are not closing
all the way. I also considered maybe the expansion valve but have not
changed that. If anyone knws anything that could possibly help PLEASE
let me know. I did come across a few posts that suggested that the ECM
wires may be grounding out to the chassis. Anyway I am at a complete
loos with this one.

Robert

Reply to this Message

Kenny - 13 May 2009 23:28 GMT

>I have been struggling with the repair of my A/C for the last 2
> seasons. The compressor cycles on and off on hot days and will not
[quoted text clipped - 3 lines]
> common problem. I suspectthere is something else wrong with the system
> that would cause all these trucks A/C hoses to leak.

Nope not really , it's the whole "you get what you pay for" scenario.
The manufacturer (Calsonic) was contracted by nissan to produce so many
hundreds of thousand units and stay within the budget of X ammount of
dollars.Those hoses maybe cost Nissan 2 dollars.

When I replaced

> the hose and dryer I vacuumed down the system. And refilled it. The
> pressures did not seem just right i cant remember the particulars due
> to it being over a year.

How did you charge it?
Did you go by weight when adding the R-134A refridgerant or did you just
dump it in there

The system has not lost any coolant. After

> reading on the web I came across the suggestion of the Thermo Control
> Amplifier and thought this may help this was replaed and no
> difference.

Another common problem, doo doo occurs

I did notice one thing when I switch to the different

> modes on the controls such as defrost A/c floor and such it is a bit
> hard to turn.

You may have a binding air mix door cable

My thoughts are that perhaps the doors are not closing

> all the way. I also considered maybe the expansion valve but have not
> changed that.

Instead of guessing, try taking it to a qualified ASE certified (in A/C)
technician or maybe the dealership.

If anyone knws anything that could possibly help PLEASE

> let me know. I did come across a few posts that suggested that the ECM

ECM , not likely at all

> wires may be grounding out to the chassis. Anyway I am at a complete
> Spelling ---> (you mean loss) loos with this one.

It the particular wire that controlled the A/C compressor relay was
grounding the compressor would stay on all the time

> Robert

Reply to this Message