GM Service Bulletin..valve springs and brakes

[frankmp]

First I've heard, maybe old news to others. FYI....

New Service Bulletin Addresses Valve Spring Issues In GM V8 Engines

Some engines are experiencing broken valve springs.

gmauthority.com

 

[Murray20c8]

It's across several platforms so it's not limited to Corvettes.

 

[Duntov7]

First I've heard, maybe old news to others. FYI....

New Service Bulletin Addresses Valve Spring Issues In GM V8 Engines

Some engines are experiencing broken valve springs.

gmauthority.com

Any idea what the TSB Number is ?

 

[frankmp]

Quick google search mentioned....“...On September 22, GM issued TSB #PIP5752A...”

 

[Duntov7]

Quick google search mentioned....“...On September 22, GM issued TSB #PIP5752A...”

Thank you sir.

 

[Murray20c8]

2020 Corvette: Service Bulletin: #PIP5752A: Service Engine Light misfire engine noise With DTC P0300 P0106 P0506 - (Sep 22, 2020)

Some 2020 Corvette owners may experience a service engine light, misfire and engine noise with possible of DTC P0300 P0106 P0506. If a broken valve spring is found, it will be necessary to perform a cylinder leakage test on the affected cylinder.

www.corvetteactioncenter.com

 

[larryd]

for LT2 engines built to 15 Sept 20

 

[Murray20c8]

If no cylinder leakage is observed it will be necessary to replace all valve springs on both banks if the vehicle is built between June 1, 2020 to September 15, 2020. Note: This only applies to the 6.2L engines RPOs L87, LT1, LT4 and LT2. For all other engine RPOs L82, L84 and L8T just replace the affected valve spring.

 

[frankmp]

Here's another for brake assist just announced..
A202307260

GM Issues 2020 Corvette Stop Delivery Order For Brake Sensor Contamination

GM has issued a stop delivery order on 2020 Corvettes due to material contamination in the electronic brake boost system sensor.

www.corvetteactioncenter.com

 

[Murray20c8]

Here's another for brake assist just announced..
A202307260

GM Issues 2020 Corvette Stop Delivery Order For Brake Sensor Contamination

GM has issued a stop delivery order on 2020 Corvettes due to material contamination in the electronic brake boost system sensor.

www.corvetteactioncenter.com

On MECF a dealer told a member that only 37 cars were affected by this one. <shrug> WHo knows though.