Honda Car Forum


Go Back   Honda Car Forum - Accord Parts Civic Tuning Acura Racing > Discussion > Honda Technical

LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 18 Dec 2012, 04:16 pm
Junior Member
Join Date: May 2012
Posts: 8
Default Why does my 94 Honda Accord cooling fan only operate when the car is turned off?

The temperature gauge is fluctuating into the high temp area when the car is idling or in stop/go traffic. When I drive, the temp cools down. I've installed a new thermostat and performed a radiator flush and refill. Looking under the hood at idle, the radiator cooling fan does NOT come on as the engine temp increases, but DOES come on after I turn the ignition off. Are we talking a faulty temperature coolant sensor here? Why does the fan come on only after the engine is off?

IMPORTANT: The fan DOES operate (along with the compressor fan) when the A/C is turned on, and that seem to cool the engine down.
Reply With Quote
  #2 (permalink)  
Old 18 Dec 2012, 04:31 pm
R K R K is offline
Junior Member
Join Date: Aug 2011
Posts: 4

the engine is always going to run hotter in stop and go's normal for the fan to run a little when you turn the engine off.if the fan wasn't going on while you drive, the engine would burn up. naturally,

the engine is going to cool down when you go faster,there's more air going through the radiator,

the faster you go.
Reply With Quote
  #3 (permalink)  
Old 18 Dec 2012, 04:50 pm
Junior Member
Join Date: Aug 2012
Posts: 2

my fan which i thought was the radiator fan stayed on after i shut the car off and it ran my battery down, then i noticed my exhaust button was on, shut that off and the fan stopped. i took the car 2 auto zone an it was a sensor.. by then the radiator fan motor was shot.. had 2 leave the heat an heat fan on 2 stop it from burning my engine up.. while driving
Reply With Quote
  #4 (permalink)  
Old 18 Dec 2012, 05:02 pm
Senior Member
Join Date: Aug 2007
Posts: 616

Did u put the correct thermostat for your car becuase diffrent thermostat open at a diffrent temperature also ur cooling fan comes on when the car off becuase the engine is off and thier no water going thru it or oil splashing around to decipate the heat so ur engine gets about 5 to 10 degrees hoter with engine off and your cooling fan is suppose to come on with engine off
Reply With Quote
  #5 (permalink)  
Old 18 Dec 2012, 05:16 pm
Junior Member
Join Date: Dec 2012
Posts: 5

It runs when you have the engine on, trust me. It isn't always on though. The fan comes on after you shut the car off because the oil pump is no longer functional, so the engine has to rely on air cooling to cool down. My friend's 88 Escort does the same thing.

The reason why it seems that the fan doesn't run when the engine is on is because the engine is much louder than the fan.

Everything's gonna be alright.
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Why does my car operate normally when Relay is removed? theiceman20_3 Honda Technical 2 24 Nov 2009 10:31 pm
my a/c is not cooling properly but low cooling when i put high speed a/c is not Indu Raj S Honda Technical 3 25 Aug 2007 02:46 pm
Turned on headlights, smelled something burning, and noticed that the cooling fan fuse had melted.? Floyd D. Honda Technical 2 21 Aug 2007 03:34 am
How long to operate A/C while in storage. Tibur Waltson Honda 2 17 18 Feb 2004 11:18 am
How long to operate A/C while in storage. Tibur Waltson Honda 3 17 18 Feb 2004 11:18 am

All times are GMT -5. The time now is 07:46 am.

Honda News | Autoblog
Powered by Yahoo Answers

Powered by vBulletin®
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc. is not affiliated with Honda Motor Company in any way. Honda Motor Company does not sponsor, support, or endorse in any way. Copyright/trademark/sales mark infringements are not intended or implied.