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Engine Vibration when A/C is engaged

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11 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHEngine Vibration when A/C is engaged

Reported or suspected cause

dirty throttle body

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
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 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

More likely a dirty throttle body.

Engine Vibration when A/C is engaged
Frequently discussed work

Clean maf and throttle body

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

Also, try cleaning your maf and throttle body...

Engine Vibration when A/C is engaged
Read full discussion summary

Leading evidence: 'dirty throttle body' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'dirty throttle body' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Clean maf and throttle body' (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 · 11 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Clean maf and throttle body

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

Also, try cleaning your maf and throttle body...

Engine Vibration when A/C is engaged

Clean may do the trick

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

Our Toyota really vibrates when we turn on the AC and I have tried everything mechanical- simple cleaning may do the trick.

Engine Vibration when A/C is engaged

Clean today

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 · Original poster

Will give it a cleaning today before I purchase parts.

Engine Vibration when A/C is engaged

Replace shocks in the jeep...will it ever end

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 · Original poster

Building a deck, fixing the pool, changed shocks in the Jeep...will it ever end??

Engine Vibration when A/C is engaged
Frequently discussed actions (6)

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

Clean maf and throttle body

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

Also, try cleaning your maf and throttle body...

Engine Vibration when A/C is engaged

Clean may do the trick

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

Our Toyota really vibrates when we turn on the AC and I have tried everything mechanical- simple cleaning may do the trick.

Engine Vibration when A/C is engaged

Clean today

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

Will give it a cleaning today before I purchase parts.

Engine Vibration when A/C is engaged

Replace shocks in the jeep...will it ever end

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

Building a deck, fixing the pool, changed shocks in the Jeep...will it ever end??

Engine Vibration when A/C is engaged

Replace with stock or aftermarket

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

So, the next question is should I replace with stock or aftermarket?

Engine Vibration when A/C is engaged

Replace with stock or upgrade

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

Should I replace with stock or upgrade to something better?

Engine Vibration when A/C is engaged
Reported and suspected causes (1)

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

dirty throttle body

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
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

More likely a dirty throttle body.

Engine Vibration when A/C is engaged
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.

11 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: 20261026T181445Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Morning all, I am experiencing a mild engine vibration only when the a/c is active. My Indy suggested I start with the motor mounts since one seems to be broken. No codes or any other indications that another system is the root cause. , I thought it wise to consult the group before I start swapping parts. Any thoughts on the source of the vibrations and what I should check.

POST 2Original post

IF one of the motor mounts is obviously broken, I do not see it as "swapping" parts to fix a problem. It is broken, you replace it. And most likely will fix the vibration.

POST 3Original post

Replace both if one is out as the other soon will be.

POST 4Original post

Also, try cleaning your maf and throttle body... The ecu knows to compensate for the extra ac load, but cannot if the maf/tb is fowler up.

POST 5 / ORIGINAL POSTEROriginal post

Thanks for all the above....another weekend project. Building a deck, fixing the pool, changed shocks in the Jeep...will it ever end?? (I hope not)

POST 6Original post

Quotes source post: 8392451

Great suggestion. I hadn't thought of the MAF. Our Toyota really vibrates when we turn on the AC and I have tried everything mechanical- simple cleaning may do the trick. Darn thing is a CPO as well, but the stealer is useless.

POST 7 / ORIGINAL POSTEROriginal post

So, the next question is should I replace with stock or aftermarket? I will not track the car, so I'm leaning towards stock replacement from pelican. Thoughts????

POST 8Original post

It is not likely the MAF - the MAF is hardly used at idle. You can unplug temporarily to be sure. More likely a dirty throttle body.

POST 9 / ORIGINAL POSTEROriginal post

Will give it a cleaning today before I purchase parts. Who knows, I am not 100% sold on the "bad" engine mount idea from my Indy. Is there a definitive test or visual inspection for a failed or failing engine mount?

POST 10Original post

Look at the car from the rear. If one of the tailpipes is 1/2-3/4" lower than the other the engine mount in that side is probably bad.

POST 11 / ORIGINAL POSTEROriginal post

I'm ready to pull the trigger on engine mounts but need suggestions on a few things. Should I replace with stock or upgrade to something better? and where should I purchase? Suncoast, Pelican? No plans to track the car if that helps with suggestions. Thanks

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