17 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH2001 996 c2 Coolant temperature sensor
Leading reported evidence
Use hvac function monitoring feature
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.
Performed · outcome unconfirmed · Original poster
I used the HVAC function monitoring feature to look at the coolant temperature and it read 0C.
Leading evidence: 'Use hvac function monitoring feature' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'outdoor temp and the thermostat' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace coolant temperature sensor, is it required' (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 suspect a cause
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.
Suspected cause · Original poster
I am up here in Canada and with the cold weather we have had, thought this was due to the outdoor temp and the thermostat.
Replace coolant temperature sensor, is it required
Suggestion or failed attempt
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 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
To replace the coolant temperature sensor, is it required to drain some coolant?
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 · Original poster
Should have taken care of this when I was changing the oil/filter yesterday!!
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
all that did was change my readout from Fahrenheit to Celsius.
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.
17 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.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T174436Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi Folks,
First post over here after some time away after being on the 924/944/968 board for years.
I have a 2001 manual transmission car with an LN thermostat. I noticed a few months ago that the temperature gauge was slow coming off of the peg and sometimes stayed at zero. I am up here in Canada and with the cold weather we have had, thought this was due to the outdoor temp and the thermostat. Yesterday, I spent 4 hours in the car in 80F temperatures and the temp needle stayed at zero. I used the HVAC function monitoring feature to look at the coolant temperature and it read 0C. I figure I have either
a). A bad sensor
b). A bad connection at the sensor, or
c). A wiring fault
The thing that is bothering me is that there was no indication by CEL or by the temp gauge that there is an issue. Because the sensor is reading zero, the rad fans did not come on but luckily, I had the AC running part of the time so the fans would have been on then.
Has anyone had a similar issue and if so, what was the cause.
Thanks!!!!!
Not a very common problem but very easy to check. From Bentley manual, you can check:
- 5v supply between the two wires connected to the sensor (unplug connector to sensor) whenever ignition key is ON
- resistance of sensor should be
0C/32F 5-7k ohm
20C/68F 2-3k ohm
60C/180F 0.4-0.8 k ohm
The sensor is #27 in this diagram
image.jpg
Good luck.
Yes, and you can get to it from under the car, between the right catalytic converter and the engine, #2 in the diagram below.
Alternatively if you remove the air filter box, you could access it from the top.
image.jpg
Awesome. Thanks again. Should have taken care of this when I was changing the oil/filter yesterday!! My guess would be that #12 in the picture above is the engine compartment temperature sensor. I need to check that one too because my engine compartment fan does not seem to run.
Cheers!!
Yes, #12 is the engine compartment temp sensor. If the sensor gets seperated from the rubber grommet that it's mounting on, do not push the sensor down on the grommet. The grommet will drop ino the abyss of the engine....remove the grommet and put the sensor back on it first, then slide the whole thing back onto the intake runners.
Ahsai, I just popped the engine bay open, and found my temp sensor just sitting ON the engine. The clip (a c-shaped piece of plastic) is still on the intake, but the grommet is gone. Do you happen to have the part number for this? Its the piece that #12 fits into in the diagram. Thanks in advance!!
Hold down the Recirculating & Air up buttons for 5 seconds. The + - buttons go up and down through the list of "c" codes. The center vent button switches the left display between the "c" code and its actual value. Press the Auto button to exit.
I'm a '99.
In other temp news, I think there is a secondary temp sensor somewhere in the car. I do not have the temp sensor for the gauge hooked up. But when the engine gets hot, the red light on the gauge flashes. Anyone have a clue to that?
