06-15-2016, 06:47 PM
|
#1
|
Registered User
Join Date: Apr 2016
Location: va
Posts: 62
|
Only left radiator fan comes on. Problem?
I was running my car yesterday for a while, and I noticed that I can only hear my left radiator fan come on. I turn on the A/C and the right fan still did not come on. How can I trouble shoot this?
I have a 01 Boxster base 5spd w/94k miles.
__________________
01 Boxster S 6Spd, Speed Yellow w/84k miles. | 991.1 911 C2 7spd Manual | 01 996 C2 -6spd - Green Machine - My baby | 997.2 C2S 6spd | 2x 01 Boxster base
|
|
|
06-16-2016, 12:15 AM
|
#2
|
still plays with cars...
Join Date: May 2011
Location: Baden, ON, Canada
Posts: 1,087
|
Pull the offender and put 12v to it directly. If it still won't run, it's a goner.
If it runs when powered directly, the relay that switches it and/or the ballast resistor would be your next parts to investigate.
__________________
Six speed 2000 Boxster S
Arctic Silver on Metropol Blue | LN Dual Row IMSR | Arctic Silver console, spoiler frame & bumperettes | Crios mod | Technobrace | RoboTop module & modified convertible top relay for one-touch roof operation
|
|
|
06-16-2016, 11:43 AM
|
#3
|
Registered User
Join Date: Feb 2013
Location: Cranston RI
Posts: 902
|
FYI resolve it quickly. My left fan wasn't working and was binding causing row in the fuse box to fry.
__________________
99 Porsche Boxster
|
|
|
06-16-2016, 11:45 AM
|
#4
|
Registered User
Join Date: Apr 2016
Location: va
Posts: 62
|
Quote:
Originally Posted by mikesz
FYI resolve it quickly. My left fan wasn't working and was binding causing row in the fuse box to fry.
|
Wow..... Thanks for the tip.
__________________
01 Boxster S 6Spd, Speed Yellow w/84k miles. | 991.1 911 C2 7spd Manual | 01 996 C2 -6spd - Green Machine - My baby | 997.2 C2S 6spd | 2x 01 Boxster base
|
|
|
06-16-2016, 04:35 PM
|
#5
|
Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
|
Most likely cause is the ballast resistor. Very common failure. Do a search, lots of posts on troubleshooting and repair. I've done two of these - one on my earlier Boxster and one on the 996.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
|
|
|
06-16-2016, 05:42 PM
|
#6
|
Registered User
Join Date: May 2016
Location: GTA
Posts: 128
|
I have a 2000 Boxster.
Today in 28 degree temperatures in traffic she got pretty hot.
I had to pull over to cool her down.
I hear a fan in the engine bay behind me.
What does it do? How does it cool the motor when the rad is out front???
There are fans on the front rads????????
How do I check them?
|
|
|
06-16-2016, 06:47 PM
|
#7
|
Registered User
Join Date: Sep 2010
Location: Foster City CA
Posts: 1,099
|
To test...turn on car, then turn on a/c. Fans always run then at low speed,
If one fan doesn't run, then its either the ballast resistor, the fan motor or the fan relay. You can test the relay by swapping it with the relay from the working side.
|
|
|
06-17-2016, 07:02 AM
|
#8
|
2003 S, Arctic Silver, M6
Join Date: Oct 2014
Location: Winnipeg, MB, Canada
Posts: 1,348
|
Quote:
Originally Posted by Fuzzuki
I have a 2000 Boxster.
Today in 28 degree temperatures in traffic she got pretty hot.
I had to pull over to cool her down.
I hear a fan in the engine bay behind me.
What does it do? How does it cool the motor when the rad is out front???
There are fans on the front rads????????
How do I check them?
|
The fan in the engine bay is to move air surrounding the engine. Air is drawn from below and pushed out the passenger side vent. There are 2 fans out front, one for each radiator. The S model has a central rad as well but no fan behind it. Follow Thom4782 advise to test the front fans
|
|
|
06-17-2016, 10:03 AM
|
#9
|
Registered User
Join Date: Feb 2013
Location: Cranston RI
Posts: 902
|
there is also a good DIY somewhere I think on Pedros board on how to make a jumper and removing the 4 relays for the 2 fans and "jumping" the bottom slot with the top slot for each fan relay. that is how I diagnosed my issue.
__________________
99 Porsche Boxster
|
|
|
06-17-2016, 11:21 AM
|
#10
|
Registered User
Join Date: May 2011
Location: Miami florida
Posts: 1,591
|
If its just the ballast go to parts geek and get the radiator fan /ballast combo for about $160. The ballast is about $110 and in the future you will need to replace a fan.
I had to replace both fans on mine.
__________________
Current car
2000 Boxster 2.7l red/black
Previous cars
1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
Last edited by san rensho; 06-17-2016 at 11:23 AM.
|
|
|
06-17-2016, 11:42 AM
|
#11
|
Registered User
Join Date: May 2016
Location: GTA
Posts: 128
|
Quote:
Originally Posted by san rensho
If its just the ballast go to parts geek and get the radiator fan /ballast combo for about $160. The ballast is about $110 and in the future you will need to replace a fan.
I had to replace both fans on mine.
|
Where did you get this deal?
Where are the balist resistor's?
Parts geek. Com?
|
|
|
06-17-2016, 11:43 AM
|
#12
|
Registered User
Join Date: May 2016
Location: GTA
Posts: 128
|
Forgot to mention. Drivers side fan runs and not the other when the AC is turned on
|
|
|
06-17-2016, 12:45 PM
|
#13
|
Registered User
Join Date: Sep 2010
Location: Foster City CA
Posts: 1,099
|
Quote:
Originally Posted by Fuzzuki
Forgot to mention. Drivers side fan runs and not the other when the AC is turned on
|
Still the same issue: broken fan motor, ballast resistor, or relay or its a break in the wiring.
If you switch the relays the passenger fan still doesn't run, then think fan motor or resistor.
If the weather is hot and you let the car run at idle until the fan switches to high speed as the water temperature rises and the passenger fan still doesn't work, then the fan is the problem.
If the passenger' side fan comes on at high speed, then it's the ballast resistor
If you have a Durametric cable or know someone who has one, you can test the fans in low and high speed modes without having run the car.
|
|
|
06-17-2016, 03:49 PM
|
#14
|
Registered User
Join Date: May 2016
Location: GTA
Posts: 128
|
Quote:
Originally Posted by thom4782
Still the same issue: broken fan motor, ballast resistor, or relay or its a break in the wiring.
If you switch the relays the passenger fan still doesn't run, then think fan motor or resistor.
If the weather is hot and you let the car run at idle until the fan switches to high speed as the water temperature rises and the passenger fan still doesn't work, then the fan is the problem.
If the passenger' side fan comes on at high speed, then it's the ballast resistor
If you have a Durametric cable or know someone who has one, you can test the fans in low and high speed modes without having run the car.
|
Thank you. Very much appreciate your response.
My wife I'd going to kill me. Having to work on my car all the time.
I used to work on my old motorcycle's until she grew tired of it and make me buy a new bike.
Maybe I can get a new Boxster if this continues.
LOL
|
|
|
06-17-2016, 08:27 PM
|
#15
|
Registered User
Join Date: May 2013
Location: North Alabama
Posts: 2,079
|
Fwiw
I have been working on and repairing things all my life (turn 60 in a few days), you say you got the fan motor going ?
Unless you found something wrapped around the motor binding it it is probably toast. I have gotten many motors that were seized going...penetrating oil etc. I have found if a motor ever seizes it's life is most likely over, you might get it going for a while but it will fail on you again. Summer is not a good time for a cooling motor to go out, get a used one from Woody if there is any drag whatsoever in that motor. It might cost a little right now but seem like loose change compared to an engine later.
|
|
|
06-18-2016, 10:12 AM
|
#16
|
Registered User
Join Date: May 2011
Location: Miami florida
Posts: 1,591
|
__________________
Current car
2000 Boxster 2.7l red/black
Previous cars
1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
|
|
|
07-02-2016, 06:16 AM
|
#17
|
Registered User
Join Date: May 2016
Location: GTA
Posts: 128
|
Here is the update. I was away in Switzerland. At home, my wife and child were driving around and heard a weird noise. Very weird. Never heard a car make this kind of noise.
I checked around, saw that the power steering reservoir was empty. filled it up and still heard the noise. I was thinking the power steering pump was finished.
Brought it to Mantis Racing in Oakville.
The found it was the water pump. They replaced it and found that neither fan was kicking in.
They replaced both resistors packs and now all is well.
My Visa would say otherwise. But, so be it.
|
|
|
Thread Tools |
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
All times are GMT -8. The time now is 09:50 PM.
| |