Rattle noise when cruising below 40mph
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Registered User
Joined: Mar 2018
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Rattle noise when cruising below 40mph
Hi all,
Thank you in advance and any help is greatly appreciated.
I have 2009 Ram 5.7 and it started making a rattling noise that only happens when I take my foot off the gas pedal and cruise below 40mph. The noise stops if I put it in neutral, or if I give it gas, or if I start pressing the brake. Also ESP turns off by itself randomly. Currently the only code I'm getting is P0344.
Here's audio of the rattling noise:
Anyone seen or experienced anything like this before?
Thank you in advance and any help is greatly appreciated.
I have 2009 Ram 5.7 and it started making a rattling noise that only happens when I take my foot off the gas pedal and cruise below 40mph. The noise stops if I put it in neutral, or if I give it gas, or if I start pressing the brake. Also ESP turns off by itself randomly. Currently the only code I'm getting is P0344.
Here's audio of the rattling noise:
Anyone seen or experienced anything like this before?
Captain
Joined: Sep 2018
Posts: 553
Likes: 64
I’ve never heard that specific noise before, but being able to stop it with shifting/gassing/braking indicates it’s driveline related.
That being said, noises can be tricky sometimes, so start with the basics - check fluid level and condition in the transmission, transfer case, and differentials (as equipped). Inspect for obvious causes such as loose u-joints or CV axles, heat or splash shields that are damaged, worn engine and transmission mounts, or suspension components that are worn. Some things, such as shields, can be temporarily removed and the truck test driven to eliminate or confirm them as sources.
If your truck has manual shift controls, Try going uphill and use manual mode to prevent downshifting - that will load the u-joints and rear axle and possibly reproduce the noise - if it does then the driveline needs closer inspection.
That being said, noises can be tricky sometimes, so start with the basics - check fluid level and condition in the transmission, transfer case, and differentials (as equipped). Inspect for obvious causes such as loose u-joints or CV axles, heat or splash shields that are damaged, worn engine and transmission mounts, or suspension components that are worn. Some things, such as shields, can be temporarily removed and the truck test driven to eliminate or confirm them as sources.
If your truck has manual shift controls, Try going uphill and use manual mode to prevent downshifting - that will load the u-joints and rear axle and possibly reproduce the noise - if it does then the driveline needs closer inspection.