6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHTachometer erratic behavior 1999C4
Leading reported evidence
Replace gauge faces
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
Hi Michael, i've got similar problem in the Pressure Gauge when i replaced the gauge faces.
Leading evidence: 'Replace gauge faces' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check connector pins' (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 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.
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
Double check those ribbon cables to make sure they are in the socket correctly and not misaligned in the socket.
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.
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
Here is what I would do - remove the gauge cluster again, clean all pins and plugs with electrical cleaner, test plug everything together before installing the gauge cluster.
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
Here is what I would do - remove the gauge cluster again, clean all pins and plugs with electrical cleaner, test plug everything together before installing the gauge cluster.
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
Here is what I would do - remove the gauge cluster again, clean all pins and plugs with electrical cleaner, test plug everything together before installing the gauge cluster.
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.
6 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: 20261026T063944Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
1999 Carrera 4
137,000.00 miles
Removed the instument cluster to replace the beige bulbs and cruise indicator bulb only to find the tachometer needle will jump and freeze. It jumped to 3000RPM, then 7000 RPM and finally made a 270 degree rotation off the dial to point straight down.
I pulled the case and spun the needle back to zero. Needle is secure to spindle. You can even hear the servo working. I have attached a video link to see exactly what os going on. All wiring and connectors are in excellent shape and engaged.
https://youtu.be/00AsRSuihEk
Hi Michael, i've got similar problem in the Pressure Gauge when i replaced the gauge faces. The trouble was the tachometer needle was too behind to the face and can't return in position because touch the face. Try to take little more distance between the face and the tachometer needle.
You went from a functioning tach to a completely screwed up tach because you removed the gauge cluster to replace light bulbs. And I don't think spinning the tach needle is going to help anything here. Something is out of whack. Here is what I would do - remove the gauge cluster again, clean all pins and plugs with electrical cleaner, test plug everything together before installing the gauge cluster. Did you unplug any of the ribbon cables? Or maybe move one out of its socket? Double check those ribbon cables to make sure they are in the socket correctly and not misaligned in the socket. If you have unplugged a ribbon cable, clean up the ribbon cable connectors with a pencil eraser to ensure a good contact.
