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Planet-9

Cooling fans don't run with A/C on

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Original source
7 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCooling fans don't run with A/C on

Leading reported evidence

Replace even

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

Even before the wp was replaced.

Original post Read captured discussion
Cooling fans don't run with A/C on
Read full discussion summary

Leading evidence: 'Replace even' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace even' (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.

Read captured replies

1 matching discussions · 7 captured posts examined · 1 partial discussions

Compare 4 other evidence results

Replace last month the water pump

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

Last month the water pump was replaced and on the highway things work well but in traffic temps climb when measured with the torque app to about 194 degrees.

Original post Read captured discussion
Cooling fans don't run with A/C on

Replace so some of these make sense

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

was and recharged when the water pump was replaced so some of these make sense

Original post Read captured discussion
Cooling fans don't run with A/C on

Replace thermostat

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

Thermostat was replaced with the water pump last month.

Original post Read captured discussion
Cooling fans don't run with A/C on

Run from my durametric

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

The fans will run from my Durametric but not with the AC.

Original post Read captured discussion
Cooling fans don't run with A/C on
Frequently discussed actions (7)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace even

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

Even before the wp was replaced.

Original post Read captured discussion
Cooling fans don't run with A/C on

Replace last month the water pump

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

Last month the water pump was replaced and on the highway things work well but in traffic temps climb when measured with the torque app to about 194 degrees.

Original post Read captured discussion
Cooling fans don't run with A/C on

Replace so some of these make sense

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

was and recharged when the water pump was replaced so some of these make sense

Original post Read captured discussion
Cooling fans don't run with A/C on

Replace thermostat

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

Thermostat was replaced with the water pump last month.

Original post Read captured discussion
Cooling fans don't run with A/C on

Run from my durametric

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

The fans will run from my Durametric but not with the AC.

Original post Read captured discussion
Cooling fans don't run with A/C on

Test further

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

Need more drive time to test further.

Original post Read captured discussion
Cooling fans don't run with A/C on

Test shows

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

more testing shows that with the AC off the fans run at higher speed when the car is at 190 degrees.

Original post Read captured discussion
Cooling fans don't run with A/C on
Coverage and how to read this overview

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.

7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Planet-9: 1 discussions

0 evidence records excluded for query context · 1 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T100758Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Last month the water pump was replaced and on the highway things work well but in traffic temps climb when measured with the torque app to about 194 degrees. The fans will run from my Durametric but not with the AC. Does this point to the fan controller? Why are they so difficult to find new? Several codes found. Why are these so hard to decipher? C102 CAN single-wire operation "comfort" C128 Communication PAS (comfort) control unit C131 Communication gateway control unit (CAN comfort) C140 Communication instrument cluster (display) 8004 Terminal 50 8012 voltage supply below lower limit Low horn not working Battery was and recharged when the water pump was replaced so some of these make sense

POST 2Original post

I use the Dash Command app and it displays similar engine temp (maybe even a little higher). Original water pump and the fans rarely go on...and when they do go on, its usually when the car is parked. I never gave it a second thought.

POST 3Original post

Luckily these are still pretty low but has changed in the last few months. Even before the wp was replaced. Fan should come on with AC at any temp.

POST 4Original post

more testing shows that with the AC off the fans run at higher speed when the car is at 190 degrees. Below that temp they don't run with the AC but at temp they run at lower speed. Not sure what the normal behavior is. Ordered another salvage fan controller but not sure if it is worth changing.

POST 6Original post

Thermostat was replaced with the water pump last month.

POST 7Original post

Just a quick update. Car has been staying in this range for the last several months but last weekend went for a drive on some tight back roads. Maintaining around 4000 rpm in second gear for 10 or 15 minutes and temp went up to 196. Got back on the highway and things settled back to 185 which is pretty typical at cruising speed. Noticed some splatter on the expansion tank so I changed the cap . Seemed better today but still got to 192 at a traffic light and took a few minutes to settle back down at cruise. Need more drive time to test further.

This is a source reference. Confirm exact model applicability in the original material.