Hi,
I own a Maruti 800 (A/C), which is bought in 2011 September(Manfd: 2011 June) .
Nearly an year back, while doing last free service at RNS-Maruti, they told that they have tightened the radiator fan belt, as it was loosened.
Dear Sir, Maruti 800 has no fan belt, as the fan is DC motor driven. They might have tightened the AC belt.
We had to travel a distance of 12 KMs yesterday in Bangalore traffic and I was driving within a speed of ~40km/h. I switched on the A/C while at a traffic signal (it was raining outside then).
After travelling for some 2 kilometres, I observed white fume coming from under the bonnet.
Was it a dense white fume or steam like fume ?
I switched off the A/C , parked the vehicle and switched off the car. I also heard some hissing voice for some time.
At that time what was the position of the temperature indicator. The hissing sound was of boiling water
After some 10 mins, I bought a mechanic and he switched on the car, it started perfectly (there was no warning light glowing, but I did not observe the temperature needle position).
He opened the bonnet, checked the radiator fan and told that the radiator fan is running slowly which is causing the overheat.
He checked the connecting cables and found that there is some lose connection of wire near the motor of the fan (he started the car, raised the temp so that the fan could start, fan started but it was running slowly, he pulled two wires near fan and it started rotating fast).
This is done if the thermostat switch or connection with the AC relay is faulty.
As a temporary measure, he has removed the 3 pin socket which is under the engine and I think has made direct connection.
Can you please post the picture of the coupler which is disconnected
Also, he has pulled and tied up the wires and told me to that the motor needs to be replaced.
IMHO, The motor does not need any replacement. As, it is running on full speed when connected directly.
I drove back the vehicle (without using A/C) for whole 12 kms without any issue (although engine warning light was glowing, but the mechanic has told me not to worry about it).
The warning light was glowing because the thermostat or connection to AC relay was disconnected. When you were driving the car then was the fan running in full speed ?
Today morning when I started the car, the engine warning light was not glowing and car started without any issue.
I would like whether tightening the fan belt will fix the issue or I need to get the switch/motor replaced.
They must have tightened the fan belt. DO NOT REPLACE THE MOTOR you may need to replace the thermostat switch.