ROTARYROCKET7

The fan in front of my engine stays on now. The speed of the fan increases as i accelerate in my car. But when im in second gear i dont really hear it. Mostly when its in first. But i think its still on when im in other gears just does not increase with my acceleration.

This is a s4 gxl so the radiator cap has a nipple with a line to the antifreeze bottle. Mines broke off and kinda just put the radiator cap with no nipple and sealed everything up till my new cap with nipple came.

The s4 thermostat housing broke on me so i had to stick with the housing from a s5.

Now if i put my radiator cap with nipple on this housing that came stock with radiator cap with no nipple and i get my coolant to flow in and out of the eninge instead of being trapped inside. Will this make the fan shut up and only come on when i need her too.

My temp gauge seems to be fine it stays under the midway point like its always does , and i just put a mazda oem thermostat in there.

So any suggestions and warnings i should be paying attention too.

I took my car to work today and kinda realized this problem a lil more. ANd my idling hasnt been to goood wheni start up. SHe flucuates from 500 to 900 then levels out to 900 and shes fine

Hers a pic to keep your attention on this post

View of Lower Manhattan, NYC from Governors Island




Jason NYC

Icemark

First you need to fix your signature. 6 lines of text is all that is allowed on this board. You will want to fix it before a admin see's it and deletes it without any further warning.

2nd, which fan are you talking about. The supplimental electrical fan found on some models in front of the radiator, or the stock fan that is attached to the engine???

ROTARYROCKET7

Stock fan in front of enigne under the shroud.

Damn sig haters lol

Jason NYC

Icemark

The fan that is hooked up the the engine is always on, it just freewheels when the air coming through the radiator is cooler than spec.

The Wankler

iTrader: (14)

The s4 thermostat, did it have a sensor on it? Mine did, and that controlled the fan if I am not mistaken. I believe that fan is for the AirCon Rad.

ROTARYROCKET7

So your saying that its alway on. But i never use to hear my fan making so much friggin noise wheni drive.. I find it weird thats all

Jason NYC

Icemark

That sensor is for the electric fan that is in front of the radiator, not the fan that is attached to the engine.

Icemark

Viscous clutch could be blown.

With the engine off and cold, can you turn the fan by hand and not have the engine move/turn???

The Wankler

iTrader: (14)

Thanks Icemark, I read it wrong.

ROTARYROCKET7

Ijust went out for a drive with my car. the fan wasnt making that loud noise that it was earlier today. I guess cuase it was HOT today it went on? But the temp sensor didnt move. Its where its always at

jason NYC

jgrts20

um.........so your using a stock fan? Thats attached to the engine thats always on while the engines on. here some pic for your eyes to stay on topic, lol!! If its the stock fan, your bearings for the fan on the engine probly going bad.

Alex Rodriguez

iTrader: (137)

try this

ROTARYROCKET7

Iwill try it as sooon as the engine gets cold.

If it turns= bad

IF it doesnt = teh good

Jason NYC

ROTARYROCKET7

Just went and checked. I tried turning the fan and its NOT Budging.


Jason NYC

Icemark

not turning and the engine is cold, means the clutch has failed in it

'87 turbo II

iTrader: (1)

oohhh...... I can do that, is it bad? car has been driven for 5 hours in 95 degree weather and A/C on with a steady temp (a little less than hlaway) so it can't be that bad.

'87 turbo II

iTrader: (1)

oh didn't read that, good news fo rme then sorry that it's bad news for you Rotaryrocket7

jgrts20

ouch..not budging. Time for a rebuild.

ROTARYROCKET7

Well it doesnt move by just gently touching it. But if i get a good grip on it and i turn it, it does move.

I thought i was testing for some looseness lol. Like if i just push on it gently and it moves then its bad. But i just went out this morning, after cars been off the whole night and i got a good grip on it and turned it and IT DOES MOVE.

So thats good then.

Jason NYC

Icemark

well, the only draw back to it not spinning by hand when the engine and car is cold is that there is additional load on the engine all the time, instead of just when the air coming through the radiator is hot.

So it is always pulling air through (kinda like the way some people wire up their electric fans and don't use a thermostat to control it). So it will keep the air flowing... that's a good thing!

Your motor won't over heat, there just is an additional HP draw.

ROTARYROCKET7

So my fan is good then..Wooosh. So then theres no real drawback if the clutch goes bad on it, cuase the fan will always be on and always cooling the motor.

Can this be attributed to my radiator cap with nipple to overflow tube NOT being connected. I broke the thermostat housing and am using a thermostat housing that comes with radiator cap with NO overflow tube. So if my car gets hot i guess it can throw the fluid into the resovoir, so the car is overheating and thats why THE fan goes on.

Thanks again for all helping me with this problem\

Jaosn NYC

Icemark

In theory yeah, you could be heating up because of air build up with no overflow (the air normally gets purged out through the overflow when hot).

As a side note, on the later models they moved the overflow pickup to the top of the radiator, instead of on the neck.

as far as the fan always being on, well you probably are loosing a couple of horses when it is always on, instead of just when needed, but that is the only draw back. At least you won't overheat.

SimplyComplex

Just to chime in... Was the problem that the fan got a lot LOUDER that it was before, thereby making you rhink something was wrong? Because my car did this as well, and the reason for it was that after changing the water pump, I didn't put the SHROUD on properly, and it wasn't sealing around the radiator fully. The fan got a LOT louder, and confused me as well. I repositioned and fixed the shroud, and i haven't had a problem since. Not sure if this is releveant or not, but i thought i'd try and help.

prjct87rx7

iTrader: (7)

sounds like it wasnt working so someone put a screw in it to keep it running...? thats an old trick if i remember right lol

ROTARYROCKET7

I put on the overflow cap and put some antifreeze mix into the resovoir. went out last night cruised for 15 minutes let her get warmed up. Took her on like 4 different highways and did 115mph bout 4 times on those roads , stoppped after every run to see if there was any leakage, overheating, or if it sucked any antifreeze up, and it didnt.

Temp senosr was where it always was, car felt HOT, tranny was HOT, but all rotarys are hot (figuretivlyand mechanicallly speaking). ANd i came home and it runs fine.

I dunno i guess i was just panicking cuase when i didnt have the RB catback on the exhaust was so loud i couldnt hear nothing, now its sooooo quiet i hear every little thing!.


Thanks guys

Jason