64 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHBlend Door Repair today, lot's of pics detail
Leading reported evidence
Install on flap
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Leading evidence: 'Install on flap' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check hoses going' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I've even done double layers and used rivets to nail the AL tape in place..
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I didn�t use foam sheets to replace the old foam, I used sheets of peel and stick roofing membrane.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
When checking the hoses going to the exchanger, they are about 135 on the inlet and 115 on the outlet.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Does anyone know of a good repair shop in Connecticut that has experience fixing door check straps?
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Even from the bonnet, you still have to disassemble all of the wiper arms and associated parts as well as disconnecting the heat exchanger and the coolant hoses.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
64 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
I'm still not clear on how the tech got the blend door out of the heat core compartment.
Awesome!
This is on my list of things to do while I’m not working during December.
I have everything I need except time...and a little motivation.
Yes, you have to Dremel it out on top.
You can see it has been Dremeled in the 8th picture.
The 4th picture is pre-Dremeled.
Same here. Its been warm as well for December but I just don't drive it in the cold enough to get motivated. It doesn't really look like that bad of a repair from the top.
To sum up:
1. Blend door under the heater core is the cold/heat temperature?
2. Other one is
air between defrost, dash panel, and floor.
Do I have this right?
This is a game changer! I thought the only way was to remove the interior front console/radio/AC surround and dremel the front of the blower unit.
I'm still not clear on how the tech got the blend door out of the heat core compartment. Please clarify. Thank you.
Even from the bonnet, you still have to disassemble all of the wiper arms and associated parts as well as disconnecting the heat exchanger and the coolant hoses. Its still alot of work.
I’m the “Indy” that did the work ... I’ve done many flap fixes on 996’s, 986’s, 997’s and 987’s ... not too bad once you’ve done it a few times. You can check out all of my work at my Instagram business page at #joeslastchancegarage or my Facebook business page @joeslastchancegarage or Joes Last Chance Garage
A few more photos of a different car ... hope this helps
Access point to the flap with heater core removed
You simply remove this lever arm by taking out the 8mm head screw and then remove the lower flap pivot pin.
The foam isn’t just a nuisance, it allows heat for the interior. If you have weak or no heat, it is likely all the foam is gone off this flap
Replacement foam installed on flap
Flap reinstalled
Thanks for all that.
But everyone should be aware that it will give you heat back, but the blowing foam problem will likely persist from the second door.
Yes, missing foam.
When I got my car last year I had essentially no heat. I decided to go through the front console (remove radio, etc.) and fix both flaps. This
thread
is where I first found the method, but there are plenty others. I posted some pics on
this thread
. It was well worth the trouble!
Looks like the one at about the 7 o'clock position is loose and once removed would allow the arm to rotate & let the pink key/slot to release. Some one who has actually done it can confirm.
Correct....that is the one...see attached....and here is my write-up of the work with tips...start at post #13:
https://rennlist.com/forums/996-foru...the-vents.html
So I have a C4S side by side with a TT. The TT heats up nicely with 140+ coming out of the vents. When checking the hoses going to the exchanger, they are about 135 on the inlet and 115 on the outlet. I am measuring with a laser thermal temperature sensor.
The C4S has roughly the same temps on the hoses but I have about 110 coming out of the vents.
Is this conclusive that the problem is the blend door foam? Is there another way to confirm / diagnose this problem?
I tried covering the air inlet below the cabin filter but I didn't see an appreciable difference. In fact, when I covered it I got so little air through the vents that it was hard to tell.
I'm thinking I might attempt this repair tomorrow if I can get some feedback from the peanut gallery...
There are closed cell foam products that will last fine, and do their original job which was to help quiet down the air flow noise..
You can also cover foam with AL tape.. I've even done double layers and used rivets to nail the AL tape in place..
(Different application but it would work here as well. )
Thanks for the post!
I finally took care of my blend door below the heater core.
I still need to install the battery & wipers.
It was not a bad job at all.
I think total time will be about 75 minutes.
Next I’m going to tackle the blend door behind the radio.
http://986forum.com/forums/performan...-debris-3.html
Just did this on my turbo. The blend door had a foam strip on it. I saved it and glued it onto the new foam.
New foam with strip reglued on
Old foam still somewhart intact but crumbles when pressed. THe foam strip was attached I have not seen this anywhere else
Leaving for Florida for 10 days tomorrow. May is a busy month so close to end of May beginning of June. You should make the drive up to Lime Rock on Sunday May 15 for the FCP euro Porsche show. Its free and its kind of like a really big coffee and cars thing!
I just did this job. The under dash work was easier to accomplish by laying sideways on the driver�s seat with my head in the passenger footwell.
I didn�t use foam sheets to replace the old foam, I used sheets of peel and stick roofing membrane. Dumb move on my part. The foam is required to make a decent seal inside the mixing box to separate hot from cold.
Lucky me, I get to do it again.
That's the part I hate! I'm going to try laying on the driver's seat and see if it's more comfortable (I mean tolerable!!) I had to remove the Bose sub in the passenger footwell and the screw closest to the firewall was so hard to get to with my beat p old body! My GF just laid down and got it in a few seconds!! She's tiny though!
Dranon enjoy Florida I’m good for now my blend door is stuck on the AC position and with summer coming I can hold off
my lunch/dinner offer is good for any time you want
it should be fun to get together and enjoy Porsche company
Without independent garages with passion and experience, with skills and intelligence, a lot of us would be unable to enjoy these cars. I have tried to do some of my own work, but without my local Indy, who is honestly a lifesaver, I would have a newer car and not a 911. I'll give you an example I wanted to put louder cans on my exhaust and so I ordered them from top gear UK and then I jacked my car up and sprayed the bolts with liquid wrench type stuff and while I was under there I noticed that my driver's side cylinder Bank had only two bolts holding the exhaust manifold on the two at the far ends the four in the middle we're gone, the heads are gone the bolts. I called my Porsche center and they said they don't do that work they would just order me a new block maybe or part of the engine so it would cost a small fortune. My local Indy is going to take off my manifolds fix the bolt problem and install the additional new headers and 200 cell x pipe cats along with the valve exhaust tomorrow. if he would not do that I would have no options so God bless you Indies. The work is not going to be cheap but at least I know it will be done right. You really have to love these cars to own one. I paid $26,000 for mine and I've spent 12K already of course some of that was optional. But a lot of it is not and I have foam blowing out my dash vents. I haven't checked the heater to be honest because I don't live in the North I guess I should. that looks like a lot of work. More stuff to fret over.
Has anyone in this thread linked to AMCPILOT's original thread on how to do this?
Seems that some of the questions, issues asked here are addressed over there:
https://rennlist.com/forums/996-foru...ent-issue.html
I have had the pleasure of attempting this repair. I'm usually pretty handy but this is kicking my butt. While trying to line up the blend door with the pivots, I dropped the upper pivot into the outside body cavity. It has disappeared. Does anyone know where or what part number that would be?
So I finally tackled this on my 997.1 Turbo last night! The hardest part is I'm 6'3" 200lbs and 69 years old! Definitely takes a contortionist with a good back! I was actually able, though very difficult,to replace the foam on the heater door while in there from the Frunk after removing the blend door. I inspected it closely with a small mirror and that was where most of my foam had come from. I cut small rectangle pieces and was able to reach around the corner to attach them, only a few scrapes to my hand and arm but worth it! Afterwards checking again with the mirror it was perfect 👌! Everything is working great! Thanks to all that have posted videos and pictures or I would never tried it! The foam I used is similar to original but made from what the manufacturer claims will not break down!
Blend Door USA
in Applegate, MI
I just did both methods recently and found the dash entry to be easier. There is less stuff to remove, and I could cover all of the holes in both blend doors. I did both because after I had completed the dash method and still had no heat, I noticed that my heater core had been bypassed by a previous owner. I decided to remove the heater core and replace it in case it was leaking, along with the blend door to put foam on both sides. Now it works great.
For the dash method, a sharp utility knife blade cut the ducting perfectly.
For the heater core method, you really only need to cut off very little of the pivot cover. I started a little too deep and nicked the top of the pivot arm, but it shouldn't affect anything.
If No. 18 is not it, then it is not a part you can get separately and you will need to find yours or buy another HVAC box from a recycler. I just did the repair on my wife’s car. I removed the dash and the HVAC box and then disassembled the box. I bought a sheet of foam from a HVAC supply house and cut pieces to do each side of both doors.The issue with removing the box is that you have to discharge the AC to unhook the AC lines in order to remove the box. I was upgrading her car to a full Leather interior so I was replacing the dash. Removal of the dash in not as hard as people think, it just takes some time. Mire Schwartz posted a procedure for removing the dash and air box on Rennlist several years ago when he had too remove the HVAC box to reolace a leaking evaporator core.. I followed it but I found that you do not need to unhook the battery cable at the fire wall and you do nit need to remove the Fuse link module on the fire wall between the HVAC box and the fire wall. I will probably do this repair this way on my other cars rather than cutting the top and the side of the box.
#18 is not the part and it is not on that diagram, I don't know if you can even buy just that part, if you dropped yours in might have gone into one of the drain tubes in the frunk.
Another possibility is a salvage yard, possibly find a similar part on a wrecked VW, BMW or AUDI. I've hear they have similar parts.
It’s the same basic box that’s on the Mk4 Golf/Jetta and Mk1 Audi TT. That said, there are many replacements available on eBay that could possibly be modified.
