03-08-2007, 06:26 PM
|
#1
|
|
Registered User
Join Date: Mar 2007
Location: la
Posts: 13
|
why after i drove my boxster for 30mins them tempature will at "0" of 180
i think my car is having problem now, after i drive it for around 30mins, the tempature gauge will point at 0 of the middle 180. sometime will at the next black mark which is the one before the 250'. i checked the coolant which is ok, also if i try to turn on the heater the temp will go up a little too. i think maybe the cooling fan is no working? anybody who had same problem please help me!!
|
|
|
|
03-08-2007, 06:29 PM
|
#2
|
|
Guest
|
Are the front radiators clear/clean?
|
|
|
|
|
03-08-2007, 07:13 PM
|
#3
|
|
Registered User
Join Date: Nov 2006
Location: Virginia
Posts: 846
|
Quote:
|
Originally Posted by bmussatti
Are the front radiators clear/clean?
|
Excellent point. Lots of times these are neglected. Leaves and other debris will build up over time and impact the cooling effectiveness. Plus, its not so easy to notice the build-up without crawling around on the ground in front of the car.
Also check the fuses for the fans. These can fail and cause the fans not to come on.
Also, what kind of drive? 30 min stop and go city traffic at low speed? Highway cruising? High rpm track driving  ?
The "zero" of the 180 is not an issue. Warm perhaps, but not a problem. When it gets closer to 230-250, then there is a definate problem.
Does turning the "heat" on full blast help reduce the temps? (it should), should you have an emergency near melt-down.
__________________
1976 914 2.0
2000 Boxster 2.7 (sold)
1978 911 SC (sold)
1970 914 w/2056 (sold)
|
|
|
|
|
03-08-2007, 07:33 PM
|
#4
|
|
Registered User
Join Date: Mar 2007
Location: la
Posts: 13
|
Quote:
|
Originally Posted by racer_d
Excellent point. Lots of times these are neglected. Leaves and other debris will build up over time and impact the cooling effectiveness. Plus, its not so easy to notice the build-up without crawling around on the ground in front of the car.
Also check the fuses for the fans. These can fail and cause the fans not to come on.
Also, what kind of drive? 30 min stop and go city traffic at low speed? Highway cruising? High rpm track driving ?
The "zero" of the 180 is not an issue. Warm perhaps, but not a problem. When it gets closer to 230-250, then there is a definate problem.
Does turning the "heat" on full blast help reduce the temps? (it should), should you have an emergency near melt-down. |
thanks for replying!so where is the fuse box for the fan? it is on the left driver pedals area?
|
|
|
|
|
03-08-2007, 07:35 PM
|
#5
|
|
Registered User
Join Date: Mar 2007
Location: la
Posts: 13
|
i was driving at city without pass 3500rpm!
|
|
|
|
|
03-08-2007, 08:00 PM
|
#6
|
|
Registered User
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
|
Hi,
To check the Fans, turn on the AC - the Fans default to ON with the AC, this will tell you if the Fans do operate, but not necessesarily whether they are Temperature responsive.
As mentioned check the fuses (C8 - Rht., C10 - Lft.) but also check the relays. The Boxster uses two-stage (speed) Cooling Fans controlled by a resistor integral to the wiring harness. The fans have a Relay for each speed (Low/High). These are #19-22 (#19 - Lft. Low, #20 - Rht. Low, #21 - Lft. High, #22 - Rht. High) in the underdash Relay tray.
But, since you also report unusual Gauge Readings, I might also suspect the Coolant Temperature Sensor. This is because it is an NTC Resistor which sends a signal to the Temperature Gauge (pins 1,3) and to the DME which it uses to energize the Cooling Fans (pins 2,4). If you have a Code Reader, download any codes you may have stored (these will not all throw a CEL). In particular, look for codes P0115, P0117, P0118. If you have a faulty Thermostat, this can also throw a P0115 code as well. Hope this helps...
Happy Motoring!... Jim'99
|
|
|
|
|
03-09-2007, 11:12 AM
|
#7
|
|
Registered User
Join Date: Mar 2007
Location: la
Posts: 13
|
today i turned on the ac, i only feel that the right side fan is blowing out air, the left side didnt. when the ac is on, both fans suppose on right?
|
|
|
|
|
03-09-2007, 12:24 PM
|
#8
|
|
Registered User
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
|
Quote:
|
Originally Posted by ferrari355
today i turned on the ac, i only feel that the right side fan is blowing out air, the left side didnt. when the ac is on, both fans suppose on right?
|
Hi,
Yep... both should be functioning. Check the items in my previous post. But, I also think your radiators may be in need of a good cleaning too because once the car gets to 27MPH or so, the airflow through the radiators is sufficient to keep the system cool w/o the Fans on all but the hottest days or Stop & Go traffic. Good Luck!...
Happy Motoring!... Jim'99
Last edited by MNBoxster; 03-09-2007 at 12:28 PM.
|
|
|
|
|
03-09-2007, 01:14 PM
|
#9
|
|
Registered User
Join Date: Jul 2006
Location: Where the Sewer Meets the Sea, CA. USA
Posts: 2,695
|
Quote:
|
Originally Posted by ferrari355
today i turned on the ac, i only feel that the right side fan is blowing out air, the left side didnt. when the ac is on, both fans suppose on right?
|
When you say fans... do you mean the fans behind the radiators right? not the interior A/C fan for passengers?
|
|
|
|
|
03-09-2007, 03:55 PM
|
#10
|
|
Registered User
Join Date: Mar 2007
Location: la
Posts: 13
|
Quote:
|
Originally Posted by MNBoxster
Hi,
To check the Fans, turn on the AC - the Fans default to ON with the AC, this will tell you if the Fans do operate, but not necessesarily whether they are Temperature responsive.
As mentioned check the fuses (C8 - Rht., C10 - Lft.) but also check the relays. The Boxster uses two-stage (speed) Cooling Fans controlled by a resistor integral to the wiring harness. The fans have a Relay for each speed (Low/High). These are #19-22 (#19 - Lft. Low, #20 - Rht. Low, #21 - Lft. High, #22 - Rht. High) in the underdash Relay tray.
But, since you also report unusual Gauge Readings, I might also suspect the Coolant Temperature Sensor. This is because it is an NTC Resistor which sends a signal to the Temperature Gauge (pins 1,3) and to the DME which it uses to energize the Cooling Fans (pins 2,4). If you have a Code Reader, download any codes you may have stored (these will not all throw a CEL). In particular, look for codes P0115, P0117, P0118. If you have a faulty Thermostat, this can also throw a P0115 code as well. Hope this helps...
Happy Motoring!... Jim'99
|
well, today i opened the dust cover and used a battery connected to the fan directly and the fan worked. also i checked the relays, i did switch the #19 20 21 22 and still only the only right fan is working so i dont think is the reley. but when i check the fuse box i cant find where is the c8 and c10 because it only had numbers on it i cant find where is the "c" 10. so what i am thinking is the resistor for the fan, but where is that?
|
|
|
|
|
03-09-2007, 08:36 PM
|
#11
|
|
Registered User
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
|
Quote:
|
Originally Posted by ferrari355
well, today i opened the dust cover and used a battery connected to the fan directly and the fan worked. also i checked the relays, i did switch the #19 20 21 22 and still only the only right fan is working so i dont think is the reley. but when i check the fuse box i cant find where is the c8 and c10 because it only had numbers on it i cant find where is the "c" 10. so what i am thinking is the resistor for the fan, but where is that?
|
Hi,
The Ballast Resistor is in-line with the wiring harness between the two fans. It is integral to the harnes, but available as a separate part (PN# 996.616.101.00) which must be spliced into the harness. Hope this helps...
Happy Motoring!... Jim'99
|
|
|
|
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 10:48 PM.
| |
Hybrid Mode
