Pelican Parts

Serpentine belt and pulley's

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHSerpentine belt and pulley's

Leading reported evidence

Replace 3

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
I replaced all 3 on my 99 C4 at 143404 miles when I did a belt replacement (1st @ 78K because no records) and found some noise and play in the upper idler.
Original post Read captured discussion
Serpentine belt and pulley's

Frequently discussed work

Check alternator clutch if it has one

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
You might want to check your Alternator clutch if it has one.
Original post Read captured discussion
Serpentine belt and pulley's

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Leading evidence: 'Replace 3' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check alternator clutch if it has one' (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 · 4 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Check alternator clutch if it has one

Suggestion or failed attempt

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
You might want to check your Alternator clutch if it has one.
Original post Read captured discussion
Serpentine belt and pulley's

Replace 2 idler and tension pulley, and the tensioner

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 · Original poster
I'm considering replacing the 2 idler and tension pulley, and the tensioner.
Original post Read captured discussion
Serpentine belt and pulley's

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 alternator clutch if it has one

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
You might want to check your Alternator clutch if it has one.
Original post Read captured discussion
Serpentine belt and pulley's

Replace 2 idler and tension pulley, and the tensioner

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 · Original poster
I'm considering replacing the 2 idler and tension pulley, and the tensioner.
Original post Read captured discussion
Serpentine belt and pulley's

Replace 3

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 replaced all 3 on my 99 C4 at 143404 miles when I did a belt replacement (1st @ 78K because no records) and found some noise and play in the upper idler.
Original post Read captured discussion
Serpentine belt and pulley's

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.

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

Pelican Parts: 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: 20261026T155324Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

2002 C4S owned for 14 months, came with all records from 2005 w/23k miles. Has had IMS update. The upper serpentine belt pulley failed. No pulley's or tensioner replacement shown in records. I'm considering replacing the 2 idler and tension pulley, and the tensioner. Does the tensioner get weak over time? Is there a higher failier rate one over another? Is it necessary to do all? Are they all relatively easy to do? Any special tools? Did I ask too many damn questions? (o: Barry

POST 2Original post

Hey Barry - certainly not too many questions I haven't had a failure on mine yet but I've read that the weakness sets in over time - which is reasonable for any material that can fatigue. I've also read that there's pulley kit that's available - it might be worth looking into.

POST 3Original post

Hi Barry I replaced all 3 on my 99 C4 at 143404 miles when I did a belt replacement (1st @ 78K because no records) and found some noise and play in the upper idler. I didn't see anything on tensioner issues when I researched it then. The new ones from Pelican are plastic and at 164000+ they seem to be OK. These seem to be lighter but I would prefer metal. Especially considering what they cost. You might want to check your Alternator clutch if it has one. Mine does and its hanging in there. Wayne's book only has 2 pages on idler replacement, but it does have the torque values. And Gotcha's.

POST 4 / ORIGINAL POSTEROriginal post

Thanks Lance. I researched doing this. It's an easy job but was cost wise to take to my mechanic 2 miles away. I have too much work and home remodeling. Mechanic always does an instection and found minor seal seeps, cracking CV boots, loose intake boot clamps which causes sucking air therefore loss of power. Time for front brakes too.

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