03-19-2013, 08:54 AM
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#1
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The Gimp
Join Date: Mar 2013
Location: Bremerton, Wa
Posts: 27
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Overheating and no heat.. Help please
Hey guys, first day of spring and while at work last night it started to snow storm really bad here in upstate NY. I decided to drive the 2001 boxster s (3.2) home anyways. I had a tough time and the wheels were spinning. After some time at moderate rpm (3-5k) the temperature went up way past normal. I kept at it a little and it continued to climb so I shut it off. I let it cool down a little and when I turned it back on to get at it it got up the red and pegged high. I shut it off, checked the coolant and it had relieved. I turned on the lights and no heat. I had the car towed and now I have no heat, car still overheating.
Ideas? Thanks
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03-19-2013, 09:05 AM
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#2
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,584
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Possible thermostat or water pump failure. Do not drive it until it is fixed.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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03-19-2013, 09:41 AM
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#3
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The Gimp
Join Date: Mar 2013
Location: Bremerton, Wa
Posts: 27
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Anyone know why the heat won't work? I'm a former motorcycle tech, and those don't have heat.
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03-19-2013, 10:05 AM
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#4
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,584
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No water circulation (failed water pump, closed thermostat)= No heat..............
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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03-19-2013, 02:25 PM
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#5
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The Gimp
Join Date: Mar 2013
Location: Bremerton, Wa
Posts: 27
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i feel dumb, thanks for pointing that out. I guess i'll start with the thermostat. i really hope the head gasket didn't go in the process.
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03-19-2013, 06:13 PM
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#6
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I am my own mechanic....
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,432
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Quote:
Originally Posted by Habby73
i feel dumb, thanks for pointing that out. I guess i'll start with the thermostat. i really hope the head gasket didn't go in the process.
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If HG you would have a leak, or mixing of water & oil. Highly doubtful. Stat or pump.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
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03-20-2013, 10:26 AM
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#7
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Registered User
Join Date: Jun 2012
Location: Peoria IL
Posts: 529
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Don't feel dumb. At least you checked the coolant level. I had to have a mechanic explain to me that without coolant, there would be no heat. (I was a wrench for Uncle Sam at the time) Talk about feeling like a dumbass.
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03-20-2013, 10:49 AM
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#8
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The Gimp
Join Date: Mar 2013
Location: Bremerton, Wa
Posts: 27
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well, the tech manual i ordered (bentley) should be here tomorrow, and the thermostat soon after. I haven't ever worked on anything other than a front engine car so this should be an experience. any tips or past problems people have had when replacing the thermostat or water pump?
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03-20-2013, 04:39 PM
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#9
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Registered User
Join Date: Jul 2012
Posts: 21
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The car should still have heat at heater core with a closed thermostat, due to the bypass system. sounds like you had or have a very low coolant situation, (coolant in the bottle doesn't always mean coolant in the entire system) or as suggested no flow.
Either way the water pump and thermostat are relatively easy jobs if you are halfway decent mechanic. a lot easier than a car that has the water pump behind the timing belt like a miata or a VW golf.
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03-20-2013, 05:21 PM
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#10
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Need For Speed
Join Date: Feb 2013
Location: Funville
Posts: 2,112
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I had this same issue a few weeks back. Exactly as you mine happened when heading home from work and a big snow hit. I thought it was the water pump, so I ordered a new one and a low temp stat. In the end I didn't need either, I needed to add coolant and bleed the system with the coolant bleeding valve. I had added coolant, but it kept over heating, being a new Box owner I didn't know about the bleeding until I already had the parts and was reading up on how to replace them and read the bleeding part. So I have $300 in water pump and low temp stat sitting here doing nothing lol. I'll probably replace them when it gets warmer out. Where the heck is Spring?
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03-21-2013, 12:26 PM
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#11
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The Gimp
Join Date: Mar 2013
Location: Bremerton, Wa
Posts: 27
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Quote:
Originally Posted by KRAM36
I had this same issue a few weeks back. Exactly as you mine happened when heading home from work and a big snow hit. I thought it was the water pump, so I ordered a new one and a low temp stat. In the end I didn't need either, I needed to add coolant and bleed the system with the coolant bleeding valve. I had added coolant, but it kept over heating, being a new Box owner I didn't know about the bleeding until I already had the parts and was reading up on how to replace them and read the bleeding part. So I have $300 in water pump and low temp stat sitting here doing nothing lol. I'll probably replace them when it gets warmer out. Where the heck is Spring?
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Weird how similar our situations are. I just went out to check it out and went to feed and bleed the coolant as described in the manual... i'm having a little trouble. I don't have a bleed valve i do not believe on my 2001. I'm gonna keep at it. Weird though. How hot did yours top out at?
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03-21-2013, 02:22 PM
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#12
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,584
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Quote:
Originally Posted by Habby73
I don't have a bleed valve i do not believe on my 2001.
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the 2001 Boxster definitely had the coolant bleeder valve, it is next to the oil and coolant filler caps in the rear boot, it is hiding under the removable panel:
 
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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03-20-2013, 07:31 PM
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#13
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Registered User
Join Date: Nov 2009
Location: Winnipeg MB
Posts: 2,485
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Pedro's Garage is another great source for help on DIY projects. This is where I always go for info first as the articles are really well written and there are lots of good pics as well.
DIY Projects: Do-it-Yourself Repair and Maintenance for your Porsche
That vacuum bleeder is well worth having, but you do need a decent compressor to run it.
__________________
'99 black 986
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03-21-2013, 12:36 PM
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#14
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The Gimp
Join Date: Mar 2013
Location: Bremerton, Wa
Posts: 27
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LOL knowing that you have that bleeder valve sure does help things... wow...
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03-21-2013, 02:17 PM
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#15
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The Gimp
Join Date: Mar 2013
Location: Bremerton, Wa
Posts: 27
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just wanted to say thanks for your responses guys. I got it back right. It turns out it was nearly 3 gallons low on coolant. It has inspired me to work on it more though after forcing me to explore the entirety of the car and buy a service manual.
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03-21-2013, 02:23 PM
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#16
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1999 base
Join Date: Dec 2011
Location: Coral Springs FL
Posts: 1,617
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Quote:
Originally Posted by Habby73
just wanted to say thanks for your responses guys. I got it back right. It turns out it was nearly 3 gallons low on coolant. It has inspired me to work on it more though after forcing me to explore the entirety of the car and buy a service manual.
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question is, where did the 3 gallon of coolant go? 
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03-21-2013, 02:37 PM
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#17
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The Gimp
Join Date: Mar 2013
Location: Bremerton, Wa
Posts: 27
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Quote:
Originally Posted by Meir
question is, where did the 3 gallon of coolant go? |
Yeah, I have no idea. The guy i bought it from said he did a lot of the maintenance himself, and the service manual didn't come with it, so I'm wondering if he ever really used one when working on it. 3 gallons of coolant is a lot, and just proves how bulletproof these engines are! Ran on almost no coolant and didn't blow any gaskets.
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03-22-2013, 01:25 AM
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#18
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Registered User
Join Date: Dec 2008
Location: Queensland, Australia
Posts: 1,522
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Quote:
Originally Posted by Habby73
Yeah, I have no idea. The guy i bought it from said he did a lot of the maintenance himself, and the service manual didn't come with it, so I'm wondering if he ever really used one when working on it. 3 gallons of coolant is a lot, and just proves how bulletproof these engines are! Ran on almost no coolant and didn't blow any gaskets.
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You have a major problem - 3 gallons of coolant is a serious leak....
1) Check your oil level to see if there is coolant / oil intermix.
2) Did you "bleed" the system after refilling with coolant?
3) What did you fill the coolant overflow bottle with - some off the shelf coolant fluids react to the Porsche coolant causing gelling"?.
4) If in doubt, get the system pressure checked by a reputable Porsche specialist.
__________________
2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
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03-21-2013, 05:08 PM
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#19
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Need For Speed
Join Date: Feb 2013
Location: Funville
Posts: 2,112
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Quote:
Originally Posted by Habby73
LOL knowing that you have that bleeder valve sure does help things... wow...
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Did you find the bleeder valve?
Mine got pretty hot, red light came on.
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1997 Porsche Boxster
My car
boxster S
Hybrid Mode
