Dgame7:
I tend to run my engine for up to 2 hours with d A/C on almost everyday during my work tym due to d weather. Pls can this affect the engine. Thanks

Edunwa302:
Ur owner's manual shld tell you more, beside its not Ideal to do such as that may course rise of engine temp, your car needs more than inbuilt cooling system for perfect cooling as air that pass through the car's while on motion helps a lot in engine cooling

ZIMDRILL:


Your are wrong

thats the reason why the fan should kick in when the coolant has reached certain degrees so it will never overheat as long the thermostat and thermometer are working fine

Edunwa302:

Who's talking of over heat here, did you understand my post at all ?

adanny01:


You were not entirely wrong especially in asking the OP to refer to his user manual. That was critical.

However, you said and i quote "your car needs more than inbuilt cooling system for perfect cooling". This and the rest of the sentence i believe is why ZIMDRILL said you are wrong. His car needs nothing more than prompt recommended service. It is only in the long run that the wear of the engine and associated parts will fall in and that cannot be avoided by any means other than proper servicing.

Referring to this comment of yours, 'air that pass through the car's while on motion helps a lot in engine cooling', thats why the car is designed that the fan mostly stops when moving but kicks in when you have stopped. The actual controller for when the fan kicks in is the coolant temp sensor through the ECU. Only the coolant temperature determines if the fan is needed or not. So if the car is moving and the air is cooling the engine within required temp, the fan remains off and comes on when probably you have stopped and the temperature is going above required so the fan comes on. This way the fan itself has a longer lifespan being saved from over working. On another situation were the fan is off but the air passing as a result of movement cools the coolant below required the thermostat stops water circulation so that the required heat will build up.

From this explanation nothing is additionally required except if there is a fault with the cooling system and in that case the fan may not be able to cool it successfully.

Edunwa302:

In as in much as I respect ur knowledge on automotive, all the above explanation is currect on vehicle cooling system operation, BUT the op is asking of the implications of such long idling practice and all I am insinuating is that its not an ideal practice to life of his engine INSHORT MY CAR OWNERS MANUAL WARNED AGAINTS LONG IDLING

adanny01:


I am shocked that your owners manual warns against excessive idling.

This is what my manual says;

U.S. Owners - Follow the
Maintenance Schedule for Severe
Conditions if you drive your car
MAINLY under one or more of the
following conditions.

-Driving less than 5 miles (8 km)
per trip or, in freezing
temperatures, driving less than 10
miles (16 km) per trip.

-Driving in extremely hot [over
90°F (32°C)] conditions.

-Extensive idling or long periods of
stop-and-go driving, such as a taxi
or a commercial delivery vehicle.

-Trailer towing, driving with a roof
rack, or driving in mountainous
conditions.

-Driving on muddy, dusty, or
deiced roads.

NOTE: If you only OCCASIONALLY
drive under a ‘‘severe’’ condition, you
should follow the Normal Conditions
Maintenance Schedule.

Canadian Owners - Follow the
Maintenance Schedule for Severe
Conditions.

I guess, when those cars reach Nigeria, severe conditions should be followed.

Edunwa302:


Yes, different manufacturer, difference maintenance habit
Mine simply put on pics below marked with black

adanny01:


I understand.

I noticed it is written "Avoid unnecessary stopping and braking". When you get caught up in traffic how will you avoid stopping and braking?
I ask the same question with that of idling, if the weather condition is very hot and i want to be cool while held up in traffic, how else can i avoid idling?

If they use the word 'avoid', it doesn't mean you must not do it but it means your action will be putting additional stress on the car. We all know that. If the weather were very cold such as in 5 degrees would i need the A/C? I cant avoid situations where its hot and wish to cool down. The avoid used is conditional.

Edunwa302:


"I ask the same question with that of idling, if the weather condition is very hot and i want to be cool while held up in traffic, how else can i avoid idling?".........sorry abt the poor picture quality but if you look well, they said, IF NOT IN TRAFFIC, YOU SHOULD PUT OFF THE ENGINE.
this are safe driving ethics from the manufacture in other to achieve long life span of the vehicle. Remember the op said he want to leave the engine idling up to Two hours everyday, that can be a healthy practice for the car.
Have you ever idle your car for 30minute and touch the hood with your hand, it ll be very hot BUT you can make more than 50km trip on your car and feel the hood, you will be surprise its just warm

adanny01:

No one will like to idle his car gor so long witout reasons. i am presently at d north eastern part of d country. I am always on d move.
We dont have much to argue about cos i see no other reason i would idle my car for even 10 minutes when the A/C is not required or i dont need to move. If the op says he idles his car for 2 hrs the 1st thing i assume is that he is using the A/C. My friend out of power failure couldnt sleep and had no fuel in his generator slept in the car using A/C. If he today says he left his car idling for 5hrs what will be your assumption. The other person i know who left his car idling for 5 hrs without using A/C was passed out drunk! You see! Lets drop the matter.

Edunwa302:

Who's talking of over heat here, did you understand my post at all ?

blackfm:
I don't think it's a good idea to idle for long. Sometimes last week, I was idling with the AC running , after about 45mins and i noticed my temp gauge was almost on red and quickly powered down the car.

honmusa:

if becos u idle ur car for too long while on ac and ur car wanted to overheat, u need to check ur fan , it is going bad .I am sure ur fan is directly connected.

blackfm:

My fan isn't directly connected.it was before but I switched it back to factory setting earlier this month. It's been sung here time after time how bad that is for the car.