Cars - For Car Enthusiasts

3913 readers

1 users here now

About Community

c/Cars is the largest automotive enthusiast community on Lemmy and the fediverse. We're your central hub for vehicle-related discussion, industry news, reviews, projects, DIY guides, advice, stories, and more.

Rules

Stay respectful to the community, hold civil discussions, even when others hold opinions that may differ from yours.

This is not an NSFW community, and any such content will not be tolerated.

Policy, not politics! Policy discussions revolve around the concept; political discussions revolve around the individual, party, association, etc. We only allow POLICY discussions and political discussions should go to c/politics.

Must be related to cars, anything that does not have connection to cars will be considered spam/irrelevant and is subject to removal.

founded 1 year ago

MODERATORS

[email protected]

unmuffled engine noise only in 1st gear (lemmy.world)

submitted 6 months ago by [email protected] to c/[email protected]

5 comments fedilink hide all child comments

Hey yall, not sure if this is the right place for this, but I figured I'd give it a shot.

When I accelerate from a stop, I hear what sounds like unmuffled engine noise that sounds like it's coming from near the front of the car. It's not a complete roar like the muffler fell off but it's way louder than I'm used to. After I hit 2nd gear (automatic) the noise essentially stops and it sounds normal again. The sound can't be reproduced in neutral. I inspected what I could and the exhaust line is rusty but doesn't appear to be broken. I also don't see any issues with mileage.

Anyone have any ideas?

And if this isn't the right place, can someone direct me to the right place?

Jeep Grand Cherokee 2012 Automatic V6

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 0 points 6 months ago (1 children)

My first thought was a manifold crack but thought I’d search your brand, and it led me to a page with numerous reasons. Nothing obviously specific for low gear, but I did skim read so may have missed it. Upshot is most of these things are ‘will get worse if you ignore it’.

[–] [email protected] 0 points 6 months ago (1 children)

Thanks for the response. It also doesn't make the noise unless I hit the gas if that helps. I guess I'll get it looked at given your tentative general prognosis.

[–] [email protected] 0 points 6 months ago (1 children)

Is it only ever on acceleration regardless of gear?

[–] [email protected] 0 points 6 months ago* (last edited 6 months ago) (1 children)

Only when accelerating in 1st gear. Once I get past that, it stops. If I stay in 1st gear and pump the gas, it only happens when I pump the gas. It does not happen when I Rev in neutral or when stopped at a light

[–] [email protected] 0 points 6 months ago* (last edited 6 months ago)

The thread mentions low rpm so it might be relevant.

Whoops why did my comment clone itself. Never mind.