HondaGuy951

iTrader: (2)

So, I've changed my thermostat, and my car no longer overheats when running without A/C. When I run it (the A/C), it starts to get hot so I turn it off and turn the heater on and the temp. goes back down but still tries to get hot. It does not do this unless I run my A/C. My radiator is 240,000 miles old, I have a water pump and timing belt kit that I need to put in it as well, but I just want some opinions on why this is happening?! radiator clogged? water pump going out?! it is not the headgasket i don't think because my car runs normally, no smoke from exhaust and no milky oil/coolant. Car is a 1997 Civic LX. D16y7 Only mods to engine is a CAI. Also If I'm running the A/C while driving at freeway speeds, the car doesn't start to get hot until I slow down to street driving or idle. What's the deal?!

HondaGuy951

iTrader: (2)

anyone?

HondaGuy951

iTrader: (2)

damn, 11 views and no advice?! where's RONJ@HT? LoL

Laz's EP

iTrader: (1)

When you turn the AC on, does the other fan turn on? I think that could be your problem

jyacoba2009

Well.. when you run the AC you lose a LITTLE bit of power to circulate coolant, but not enough to not stop the coolant flow..

or..

i think your radiator might be the problem, b/c my radiator was dead at 78xxx miles on me.

HondaGuy951

iTrader: (2)

you know, i haven't checked that. it turns on when the A/c isn't on but yeah.

HondaGuy951

iTrader: (2)

wow, 78,xxx? what happened to it?!

Former User

Why all bold text?

I would first try bleeding the cooling system. As mentioned, does the radiator fan run when the engine is hot and does condenser fan run whenever the A/C is on?

Also, are the radiator and condenser clogged with bugs and debris? If so, use your garden hose and nozzle to unclog the fins.

----------------------

The bleed procedure may take 20-30 minutes:

1) Park the car on an inclined driveway with the front end higher than the rear.

2) Push the dash heater lever/**** to MAX heat.

3) Follow the directions in the diagram below

HondaGuy951

iTrader: (2)

bold text is habbit. also I don't have a garden hose, but have already bled the coolant system.

Former User

What about the two fans? Did you follow the bleed procedure described in the service manual? If not, you still may have air trapped in the system.

HondaGuy951

iTrader: (2)

there's 2? The radiator fan, and what else?

Former User

The A/C condenser and its fan sit right next to the radiator and its fan.

HondaGuy951

iTrader: (2)

ah. never noticed that the condenser had a fan.... LoL anyways, how would i check to see if it's working or not?!

Former User

The condenser fan should run anytime the A/C and blower buttons are pushed. In addition, does the radiator fan run when the engine overheats?

HondaGuy951

iTrader: (2)

the radiator fan runs for sure when A/C is off. not sure when A/C is on. I'll check all that today.

TYPERBLUESI

take the a/c out

Former User

2005 join date and this is your first post?

HondaGuy951

iTrader: (2)

*** that. I have a kid and live in Southern CA. take your stupid *** non helpful remarks elsewhere!

Laz's EP

iTrader: (1)

You know you have two fans, one for the radiator and another for the condensor, When you turn on the AC the condensor fan should turn on.

gen_x_dad

Your condenser is in front of your radiator and releases heat which the refrigerant in the cooling system absorbs from the cabin. If the radiator is going for a **** then it might not be able to handle the extra load placed on it by the heat radiating out from the condenser. Visually inspect your radiator and if all seems good, as RonJ said check to see if your cooling system is bled and that both fans are coming on when you turn your A/C on. The condenser fan will be on on the LEFT/DRIVER side and the radiator fan will be on the RIGHT/PASSENGER side.

Regardless of engine temp or if the engine is on or off, both fans should come on whenever your A/C system is turned on and also when the compressor cycles. If not, you need to troubleshoot the fan circuit up to and including the A/C system.

HondaGuy951

iTrader: (2)

I'll check all this asap. I'll re-bleed the system and all. I've been sick lately, so I'm laggin on it.

fishcough

Funny, HondaGuy951 gets all impatient when no one responds to his issue the first 20 minutes after his post, then when people actually offer him solutions by the next day, he makes excuses for not trying them.
Wonder if he ever got his problem fixed? Having the same issue myself — but I will try the solutions posed here.

GSR936

this thread is from last year.

Matt93eg

Leave it to a noob to dig up a post like this when its 7-8 months old without a post.

fishcough

Yes, I'm a n00b, but this old thread happens to describe the problem my car is having. Is there a newer post that addresses the same issue? If so, please direct!