Notices
997 Forum 2005-2012
Sponsored by:
Sponsored by:

Front trunk won't open when hot

Thread Tools
 
Search this Thread
 
Old 05-13-2013, 08:52 PM
  #1  
Bigwave
Instructor
Thread Starter
 
Bigwave's Avatar
 
Join Date: Nov 2004
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default Front trunk won't open when hot

Seems the hood latch mechanism is getting week. 2006 997S with 97K miles. When the car is left in the sun on a hot day the hood release fails until it cools off. I can hear a slight motorized release but not enough to pop the truck. As if the extra heat is creating additional resistance to prevent the completion of the cycle to open. Any experience with this? Should I replace the latch or is there may be a solenoid that could be the issue?

TIA
Dave
Old 05-13-2013, 09:03 PM
  #2  
jhbrennan
Rennlist Member
 
jhbrennan's Avatar
 
Join Date: Mar 2006
Location: Austin
Posts: 6,571
Received 81 Likes on 73 Posts
Default

Originally Posted by Bigwave
Seems the hood latch mechanism is getting week. 2006 997S with 97K miles. When the car is left in the sun on a hot day the hood release fails until it cools off. I can hear a slight motorized release but not enough to pop the truck. As if the extra heat is creating additional resistance to prevent the completion of the cycle to open. Any experience with this? Should I replace the latch or is there may be a solenoid that could be the issue?

TIA
Dave
Sounds like a solenoid issue although maybe the heat causes expansion of the hood making the tolerances at the latch extra tight, so maybe just an adjustment is needed. How's your battery?
Old 05-14-2013, 11:15 AM
  #3  
Bigwave
Instructor
Thread Starter
 
Bigwave's Avatar
 
Join Date: Nov 2004
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default

Battery is good. I'll take it apart and see if it is all one unit with latch and solenoid. Seems to be the most likely part with the heat. Works fine when cool but probably on the way out soon.
Old 05-14-2013, 11:32 AM
  #4  
2K7TTMIA
Drifting
 
2K7TTMIA's Avatar
 
Join Date: Dec 2009
Posts: 2,005
Received 21 Likes on 18 Posts
Default

If its the same as a 996, DIY in about 5-10 minutes. I replaced mine 6 months ago. IIRc, cost about $65-70 for the part.
Old 05-15-2013, 01:07 AM
  #5  
Hatzenbach
Rennlist Member
 
Hatzenbach's Avatar
 
Join Date: May 2011
Location: San Carlos, CA 94070
Posts: 1,935
Received 499 Likes on 238 Posts
Default

I had identically the same issue on my Boxster. Wouldn't open when hot, but opened when cold.
It was the solenoid in the frunk. In the Boxster it was a very simple (less than 30 min) DIY job.
I would be very surprised if Porsche had changed that part at all between 986/996/997
Old 05-15-2013, 11:29 AM
  #6  
Bigwave
Instructor
Thread Starter
 
Bigwave's Avatar
 
Join Date: Nov 2004
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks I'll give that a try.
Old 05-16-2013, 01:01 AM
  #7  
Devil Boy
Racer
 
Devil Boy's Avatar
 
Join Date: Sep 2011
Location: Phoenix East Valley
Posts: 478
Likes: 0
Received 14 Likes on 13 Posts
Default

My problem is the frunk is too damn hot to touch on a hot day. Black car sitting out in the desert sun all day is like touching an oven burner.
Old 06-08-2014, 07:04 AM
  #8  
RWRSMART
5th Gear
 
RWRSMART's Avatar
 
Join Date: Oct 2010
Location: Palm Jumeirah, Dubai
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Post My Turn

Knows its about a year since this thread was active but wondered if "Devil Boy" resolved the issue?

I live in Dubai in 100-130 degrees heat all summer and this summer is time for my "Frunk" not to work when the car is hot/has been sitting out in the sun. The 4 previous summers no issue. Garage it and let it cool down for a couple hours hit the switch and pop, she opens perfectly. If the

My car is a 2004 996 C4S with 33k miles on the clock. I don"t understand why the solenoid should fail only when hot?? Doubt it is the tolerances changing due to the heat as it is the same every year previously without incidence.

Bentley Manual is saying remove the bumper but "2K3TTMIA" mentioned 5-10 minute DYI, is it necessary to drop the bumper?

Anyway, any wisdom would be most appreciated.

rwrsmart in sunny Dubai
Old 06-09-2014, 11:34 AM
  #9  
Devil Boy
Racer
 
Devil Boy's Avatar
 
Join Date: Sep 2011
Location: Phoenix East Valley
Posts: 478
Likes: 0
Received 14 Likes on 13 Posts
Default

Sorry, I actually didn't have this problem. I was just commenting on how hot my exterior gets sitting out in the Arizona summer sun.

The symptoms mentioned in this thread do seem to point to a solenoid issue though. Maybe Bigwave can comment on if his got fixed.
Old 06-09-2014, 02:38 PM
  #10  
Bigwave
Instructor
Thread Starter
 
Bigwave's Avatar
 
Join Date: Nov 2004
Posts: 210
Likes: 0
Received 0 Likes on 0 Posts
Default

RWRSMART I didn't fix mine yet. But as it is now getting hotter out it is on my To Do List.
Old 06-10-2014, 12:41 PM
  #11  
RWRSMART
5th Gear
 
RWRSMART's Avatar
 
Join Date: Oct 2010
Location: Palm Jumeirah, Dubai
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for the feedback Bigwave and Devil Boy. Put the charger on the battery and sourced the solenoid here, of course almost 60% higher then the US price and will do the necessary probably next weekend.
Much appreciated,
rwrsmart



Quick Reply: Front trunk won't open when hot



All times are GMT -3. The time now is 03:22 AM.