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Some 2017-2019 Toyota Tacoma trucks equipped with the BD20 differential (non-TRD) may exhibit a noise or vibration at the rear of the vehicle at low speeds or while braking. This condition may be caused by excessive clearance between the brake drum and axle drum flange.

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Chevy ‘Rotational Click’ is OK

This bulletin applies to 2018-2019 Chevy Traverse and Equinox, 2019 Blazer, 2017-2019 Cruze and Malibu vehicles, all equipped with a GF9T 45/50/60/65 transmission. A “rotational click” noise may be heard after the engine is shut off.

Piston Slap

Some 2016-2017 Ford Mustang GT350 vehicles equipped with the 5.2L engine may exhibit a rattle or rapping type sound during cold operation at light loads and speeds from idle to 3,000 rpm. The noise will be most noticeable during light acceleration in the 1,500-3,000 rpm range and may also be noticeable in the 800-1,200 rpm range with neutral throttle blips

It’s Just a Noise

This bulletin applies to 2010-2016 GMC Acadia and 2017 GMC Acadia Limited vehicles. Some customers may comment that there is a clunk/thump noise on acceleration once after each key cycle that may be mistaken as coming from the engine compartment or suspension.

Crown Vic Body Mounts

Some 2010-2011 Ford Crown Victoria vehicles may exhibit a clunk or grind noise from the right front floor pan area during heavy braking or when driving on rough roads. The concern may be due to the vehicle body contacting the frame.

Chasing Chassis Complaints: Tips and Diagnostics From the Experts

Diagnosing chassis issues, including noise, vibration and drivability concerns ranges from the simple to the difficult-to-pinpoint. In this article we’ll discuss a variety of tips, both vehicle-specific and generic. As part of the article, we’ve included insightful comments from Federal-Mogul Motorparts and Arnott.