I have a Grand Vitara Suzuki 2008. Aircondition stop generating cool air. what could be the reason. car has 14,000 km and since last check I have travelled 1000 km
AC dead. all the time? truly all times.
1: does the fan blow? full speed.
2: does AC work on a hot day and a cold started engine? y/n
3: did you check the freon pressure, with the cheap refill kit
that has a gauge with the kit and hose.
is the gunge reading zero?
4: you start engine, and open hood and look at the AC compressor.
is the fan belt to that compressor turning, or is the belt missing.
if turning is the AC pulley spinning, that is not just the pulley but the
compressor front part and its main shaft, are they spinning.?
if not the AC clutch is disengaged.
if disEngaged, that means the AC logic box, is not happy.
The AC logic box can shut down the AC for 4 or more reasons.
and to find that , I stop here.
the fsm shows the pins on the logic box to see with logic input is failing.
on my car, its:
1: A/C on , switch is off.
2: fan not on, or power to it dead, no fan the logic cuts the compressor so the core dont freeze up and crack.
3: engine overload
4: engine overheat.
5: freon pressure too high.
6: freon pressure too low.
7: too cold outside, so shuts down , has to be extreme cold, RTM.
at the least. all this logic functions, save fuel and save other parts
from damage. and huge costs.
that is it for today, one more unsolved.
Aug 05, 2013 |
2008 Suzuki Grand Vitara