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 Fan stayes on full blast... any options?
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Skapunk4everr



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124 posts
95' j30
Scottsdale AZ
12-6-2005

  Fan stays on full blast... any options?


Hello all,

For about a month now, the Cooling fan runs at full blast where ever i go. I have done a search and I did not find any information on this. I seem to have misplaced my service manual so any help would be greatly appreciated.

thanks,

Andy

Modified by Skapunk4everr at 8:33 PM 8/27/2008

yodawill2000



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1938 posts
94 Infinti J30
Grand Prairie Tx
3-24-2005

 « 


Sounds like the resistor pack is blown.
Ive had the same thing happen in other cars.
Surely someone will chime in and know where its located on the J.
Normally its behind the glove box where the blower is.
When its blown the full 12 volts goes through instead of resistors stepping it down for the other three speeds.

The technical name is Darlington resistor. actually transistors.

Modified by yodawill2000 at 1:11 PM 8/27/2008



94 J30 w/170 K miles
Dark green and sexah !!!

Skapunk4everr



Offline

124 posts
95' j30
Scottsdale AZ
12-6-2005

 « Re: (yodawill2000)


even though the J30 fan is belt driven its till controlled by the resistors? Ill check it out.

-- also the fan seems to only rev up with the engine, almost like it spins faster with increasing RPM. could this be because the belt is too tight(doubt it though)?

Modified by Skapunk4everr at 10:51 PM 8/27/2008

coolyun_98

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235 posts
1993 J30 11,7000kM
North Delta BC
3-9-2007

 « Re: (Skapunk4everr)


you will need a new fan cluth. The cluth is silicon coupled wihch will make the fan turn faster when temp increases. Sounds like your fan is always coupled.

I recommend OEM fan cluth as I have heard many bad experience about aftermarket units.

yodawill2000



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1938 posts
94 Infinti J30
Grand Prairie Tx
3-24-2005

 « 


My bad ..
I thought you were talking about your AC Blower fan.

GerryO

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390 posts
1993 J30t
San Jose CA
2-9-2007

 « Re: (yodawill2000)


Quote, originally posted by yodawill2000 »
My bad ..
I thought you were talking about your AC Blower fan.

Same here, along with thinking that it's probably very hot in Scottsdale, AZ all of the time this time of year. Once? Great? minds think alike?

Things are a lot noisier when the engine first starts and before the fan clutch disengages.

Modified by GerryO at 12:02 PM 8/28/2008



1972 Datsun 240Z - non op since 1986
1987 Toyota MR2 - 199K+ and counting
1993 Infiniti J30t - 174K+ and counting
1997 Ford 150 - 87K and counting
2003 Saturn VUE - 112K and counting

Skapunk4everr



Offline

124 posts
95' j30
Scottsdale AZ
12-6-2005

 « Re: (GerryO)


Yeah i figured it was the fan clutch. I just dug up my FSM, and I will get to work.
 

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