My car has failed several times due to transmission temperature issues, leaving me stranded on the side of the road in neutral for over an hour waiting for it to supposedly cool down. Sometimes it happens after just a couple of miles driving , while other times it takes over 100 miles. It’s erratic, and not allways does it. Any ideas what or where i Can look at ?
Can you read the temp on a scanner?
Can you get a read temp with a IR thermometer?
Maybe the temp sensor.
If this is happening after just a few miles of driving, it’s unlikely that the actual temp is too high. As NJay said it could be the sensor. Has fluid ever been serviced? Is it shifting fine?
it might be useful to use a
Foxwell
or other
Porsche
specific code reader to see what codes are coming up.
That’s correct. One time it happened in less than half a mile of driving. The car has 23,750 miles, and I bought it used. I’m not sure if the previous owner ever had any transmission service done.
Did you know here is the temp sensor located?
There are a few.
But even a good generic scanner might government you some information.
Many folks use the
Foxwell NT530
.
Hi, and welcome to Planet-9.
A few things:
You posted this in the 987 "Chat" area. That's not a good area for posting technical questions - which your question is. I've moved the thread over to the 987 Problems and Complaints subforum. If this changes to a DIY fix thread - I'll move it again to the section where we keep those.
You posted 3 huge, gignormous pictures. That won't seem a problem on the phone/computer/tablet you used to post these - they'll load just fine from the local copies on the device.. but... for someone with a sketchy data connection - huge photos like these, especially 3 of them (4028 horizontal pixels - twice the size of a 4K TV display - which most people aren't reading the forum on) - can cause problems, and people get bored of waiting for them to load, and wander off to another part of the forum that loads normally, or - much worse - wander off to another forum. So - we ask that you do two things with photos - resize and crop them. And certainly don't post blurry ones like your first one. There is a link at the top of every page of this forum explaining some of this and giving suggestions on how to make photos that load. Please take a few minutes to read it when you have a chance. Your cooperation is appreciated.
Finally - sorry - we have no clue what transmission we're talking about without deciphering what your username means - so I'm going to assume it's a PDK, and it turns out you've landed in the preeminent forum for PDK analysis and repairs. I'll provide a link in just a bit.
General rule:
"Better questions get better answers"
- some info on the year, model (S or base) miles, stuff like that about your car will help us figure out what's happening. In asking questions, a description of how the problem occurs would be useful. We know it doesn't appear to be distance related since it can happen soon after starting, or after 100 miles. Does the ambient temperature seem to have some relationship to the error message? You mentioned stopping and letting it cool off helping it to recover - how long are you stopping for?
Finally - as far as a scanner - I consider this an essential tool for owners of the 987 series who want to avoid dealers as much as possible. The Foxwell NT530 can be had for less than $200USD (less than 1 hour of Porsche tech labor price) with the downloadable Porsche software. A standard OBD-II code reader won't tell you much about the transmission, since it's looking for emission errors, and that's not what this is. Searching online will turn them up on Amazon (who makes it difficult to exercise their no-questions return policy) or you can go to their importer's site:
Foxwell Diag | Foxwell Official Site | OBD2 Scanner & Diagnostic Tool
- and buy it directly. You probably want to do that before 100% import duties are attached to it.. The Foxwell isn't perfect, their support is generally spotty, and they aren't an advertiser here - but enough of us own one that we can generally guide you somewhat in regards to finding the useful data... we have them, so we can hook ours up and try to find the data on our cars and then tell you how to find it on your car.
OK - I promised you a link, I'm also going to ping our resident (from Oz - so it might take a bit for him to respond, and another good reason to avoid HUGE pics) - Jeff - who I'm sure has an idea of exactly what is going on, and perhaps a suggestion on how to get it repaired without paying Porsche $20,000 for a new transmission...
@jjrichar
https://www.planet-9.com/threads/re...eads/reasonably-priced-pdk-distance-sensor.253044/?post_id=2204216#post-2204216
- just the start of Jeff's contributions to PDK knowledge - where he and a few other chaps (mostly members here I believe) have tracked down what goes bad in the PDK, and then created replacement parts that fix it (Porsche does not sell those parts, they had to be reverse engineered and then improved on.. ) and this thread tells that story. Jeff has several other very useful threads on the PDK - they're all worth reading. Some of the failures IIRC do involve a temperature sensor in the transmission - so -- worth reading these, and if you're going to have someone besides Porsche do the work - refer them to these threads. Note that most of what Jeff writes about is for the 981 series cars - but the PDK is about identical between a 987 and a 981.
Good luck, and welcome to Planet-9. When you have a chance, some nice pictures of your car, and a bit about you would be great to see
https://www.planet-9.com/forums/new_members/
