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Fluctuating Idle

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHFluctuating Idle

Leading reported evidence

Clean icv several times

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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 have cleaned the ICV several times.
Original post Read captured discussion
Fluctuating Idle

Frequently discussed work

Check pending obd2 error codes

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
Check for pending OBD2 error codes.
Original post Read captured discussion
Fluctuating Idle

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Leading evidence: 'Clean icv several times' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check pending obd2 error codes' (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.

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1 matching discussions · 8 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Check pending obd2 error codes

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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
Check for pending OBD2 error codes.
Original post Read captured discussion
Fluctuating Idle

Clean .......look inside and see it it is coked up

Suggestion or failed attempt

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
it does sound like an idle control valve/throttle body cleaning.......look inside and see it it is coked up
Original post Read captured discussion
Fluctuating Idle

Frequently discussed actions (3)

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

Check pending obd2 error codes

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
Check for pending OBD2 error codes.
Original post Read captured discussion
Fluctuating Idle

Clean .......look inside and see it it is coked up

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
it does sound like an idle control valve/throttle body cleaning.......look inside and see it it is coked up
Original post Read captured discussion
Fluctuating Idle

Clean icv several times

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
I have cleaned the ICV several times.
Original post Read captured discussion
Fluctuating Idle

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.

8 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: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Car drives normally until I stop. The idle starts at around 750 then gradually climbs to 1300 rpm. Stays there for about 1 minute, then gradually drifts back to 750-800 rpm. Slightly rough idle. I've tried this while coasting: clutch in, foot off gas pedal, same result. Floor carpet is not moving. BTW it's a 99 with the cable (not tight) rather than e gas. I'm thinking the ICV. Any ideas?

POST 2Original post

it does sound like an idle control valve/throttle body cleaning.......look inside and see it it is coked up

POST 3 / ORIGINAL POSTEROriginal post

Will do, an will post. I did clean and test it during the rebuild (about 12k miles ago), but that doesn't eliminate it as the problem.

POST 4Original post

Check for pending OBD2 error codes.

POST 5 / ORIGINAL POSTEROriginal post

Using my el cheapo OBD2 dongle, I got: P1315, P1317, P1318 AND P1319, with no CEL. Cleared, dumped a bottle of Techron in and filled up with brand name fuel. Seems to be helping, but will pull the ICV today and clean.

POST 6Original post

I have cleaned the ICV several times. Plan to soak it with carb cleaner (just the inside part), then take Q-tips and alcohol and scrub it. The little valve can be cycled with a 9V battery. Do that and make sure it cycles smoothly back and forth. Amazingly enough the control valve always has a black sooty coating, and when totally clean it is metallic shiny inside. Mine was gummed up enough that it was getting stuck. Cleaning it took care of that.

POST 7 / ORIGINAL POSTEROriginal post

Finally got around to posting the fix: the (relatively new) oil filler cap was SLIGHTLY loose. Tightened, fixed.

POST 8Original post

Well good for you! That was an easy fix. Thanks for posting what you found to be the problem.

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