Phongsiri Nirachornkul purchased his used Chevrolet Bolt EV on November 23 in Fort Price, Texas. Quickly after he began driving it again to his house in Dallas, the recent Bolt proprietor began to hearken to a clunking sound coming from the rear. On the lookout for an answer, he contacted InsideEVs. Little did he know that he was truly serving to us warn different house owners which are in all probability intrigued by that noise as in the event that they have been the one ones. Sadly, they’re not.

A easy seek for “Chevrolet bolt rear suspension noise” on Google reveals a number of hyperlinks on Reddit, boards, and movies associated to the matter. The clunking begins at a number of thousand miles and will get worse with time. Initially, individuals thought it was restricted to the 2017 Bolt EV, however there are circumstances involving all yr fashions.

According to a thread at MyChevyBolt.com, the difficulty is attributable to a damaged weld positioned contained in the torsion beam. When it flexes, the metallic half strikes inside it and makes the clunking.

Though this doesn’t appear to be a security difficulty – which might demand a recall – it bothers drivers. For those that also have the automobile beneath guarantee, the answer could be to switch the rear suspension on Chevrolet’s account. The issue is that many are being informed to pay for the restore. Nirachornkul would have achieved it if he was not discussing the matter with GM. However we’ll get there.

Chevrolet Bolt EV's Torsion Beam Has a Clunking Issue

Quickly after choosing up his automobile on the Frank Kent Cadillac supplier and listening to the noise, he tried to get the dealership to repair it. After inspecting it on December 3, the supplier stated it fastened the difficulty, which might be the entrance sway bar not being correctly screwed. 

Nikki Gordon-Bloomfield had an analogous downside along with her automobile. Apparently, GM launched a technical service bulletin that really helpful changing that part. Predictably, that didn’t resolve the issue for her nor Nirachornkul.

As you’ll be able to see, the Bolt apparently has two power points with its suspension: the entrance sway bar and the torsion beam. In case you are listening to a clunking noise in your Bolt, ensure you examine the place the noise is coming from. As we already stated, Nirachornkul knew from the beginning it was on the rear. 

After Frank Kent Cadillac stated the automobile was repaired – and it nonetheless made the clunking noise – Nirachornkul bought in contact with GM. At first, the carmaker took the dealership’s phrase for the scenario. That was when he determined to have a second opinion.

Chevrolet Bolt EV's Torsion Beam Has a Clunking Issue

On his web site Blink Drive, Nirachornkul stated that he then appeared for assist in Dallas. The Pleasant Chevrolet supplier informed him he would wish to switch the torsion beam, which might value him $2,834. 

With the price range from Pleasant Chevrolet, the Bolt proprietor known as GM once more and was knowledgeable that changing the torsion beam is a restore thought-about as “a part of the automobile’s drivetrain.” Since his Bolt is roofed till April 2022, he is not going to need to pay a penny. However what concerning the different house owners with the identical difficulty?

In a Fb group, Nirachornkul discovered that at the very least 4 Chevy Bolt EVs in Brazil are affected by the noise. That’s a major quantity of automobiles among the many 27 which are adopted in Brazil by that group.

Val, a ChevyBolt.org member, requested for assist in the thread. He stated he represented Bolt house owners in Ukraine and Poland that might be having the identical downside. His plead for assist was to get spare torsion beams. 

Aside from him and Nirachornkul, the difficulty was additionally reported at that web site by the customers Crabby Ermine, Brant Schutte, XJ12, sjdprods (who made one of many movies embedded right here), MDBolt, M232, Terps1980, MYCL, stangbat, Lin19687, Bolted On, Rondi (a Brazilian Bolt proprietor who could also be among the many 4 circumstances reported on Fb), Michael Boyce, jasvan78, and Devin.

Chevrolet Bolt EV's Torsion Beam Has a Clunking Issue

We’ve got contacted GM to be taught if there may be any technical service bulletin concerning the torsion beam, however it’s on winter break. We’ll replace this text as quickly as we hear from the corporate, which has taken care of Nirachornkul and promised to restore his automobile after the vacations. The opposite affected house owners ought to rightfully anticipate the identical form of remedy.

Sources: Blink Drive, MyChevyBolt.com, Reddit, Chevy Bolt EV Owners Group, and MyNoisyCar.com