oatmeal28

hey guys i have a 98 with sri and if i sit for too long IE grid lock traffic the car gets really hot fast but when i start moving again and hold it right about 5000 rpm s it seems to cool down quite a bit any thoughts or suggestions would help thank you for your time

Shinji8311

Sounds like you're low on coolent most likely. But if you're low on coolent, you could also have a leak somewhere. Probably around the rad....bottom of the rad is mostly likely...could be rusty and broken...

indylude18

Likely to be either your radiator fan or engine coolant temp switch. Do BOTH of your fans come on when the a/c is turned on?

It could also be air in the system. Have you had any recent work done to the radiator or cooling system?

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Bluetop H23a Vtec Swapped NHBP '99 Base

oatmeal28

Likely to be either your radiator fan or engine coolant temp switch. Do BOTH of your fans come on when the a/c is turned on?

It could also be air in the system. Have you had any recent work done to the radiator or cooling system?
Today 05:46 AM

thanks yea the right fan is not working and it looks like the previous owner replaced it any ideas on how i can fix it with out taking it in ?

pIERCE

I don't understand why these cars cool down at RPM when they get hot at idle...

I mean, I can see how people did that and it helped with old cars back when the fan was driven by the engine. But now that the fans are electric....how is it that revving your hot engine cools it down? Does it just cycle the water faster(pump)? I don't get how this could help a non-engine driven fan.....

OP--Everyone here seems to have the situation under control, I'll leave it at that.

oatmeal28

well what i meant is when i start driving i hold it a 5 not sit and rev it but i found the problem the prelude uses a twin electric fan set up will use one fan for cooling the engine the other fan will be used for cooling the air conditioning and radiator but only works with the ac on mine does not so when i drive up to about 40+ mph it starts to cool down when the wind hits the fan hope that made since

Kronn 98SH

Sitting and revving the car will never cool down an overheating engine. The car has to be moving. The air that enters the engine bay as a result of the car being in motion is what cools it down.

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1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold

indylude18

So only one fan comes on with the A/C is turned on then, correct? If that is true, the fan that was installed by the previous owner either isn't wired correctly or it went bad. Check all the wiring that you can first (refer to Helms manual) and if you still have no luck remove the fan and test it. If wiring it up directly to a 12v source doesn't get it to work, buy a new fan.

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Bluetop H23a Vtec Swapped NHBP '99 Base