Below is chart showing complete tune-up specifications for 1959 Corvettes with all engine options. Read More

Below are revised tune-up procedures for the 1955 - 1957 Corvette equipped with eight cylinder engines.  Although the information in this article is incorrect, we will leave it available for historical purposes. NOTE:  The following... Read More

Subject: Tune-up Specification Change Model and Year: 1968 Corvette with 427 cu. in. Engine, Manual Transmission and Air Conditioning Source: Chevrolet Service News Page Number:   5 Date: February 1968, Volume 40, Issue #2... Read More

1968 - 1982 Corvette: How-To: TPI for a C3: A couple things that worked well for me over the years Submitted by:  KANE 09-21-2008 Many folks have done the swap... I'm documenting some of the things that I have found that work well between... Read More

1982 Corvette: How-To: TPI Fuel Rail Removal (Fuel Injector Replacement) Submitted by:  KANE 11-30-2007 Today I'm going to take you through a picture tutorial of what it looks like to break down the TPI system far enough to get the fuel rail... Read More

This information applies to the following vehicles with UE1 and UPF: 2008-09 CTS, CTS-V 2009 Allure, Enclave, Lacrosse, Lucerne, DTS, Escalade, SRX, STS, XLR, Cobalt, Corvette, Equinox, HHR, Impala, Malibu, Silverado, Suburban, Tahoe, TrailBlazer,... Read More

#N212332820: Service Update - Unable to Access Apps - (Jun 9, 2021) Subject:  N212332820 — Unable to Access Apps Models:  2021 Cadillac XT4 2021 Chevrolet Corvette 2021 Chevrolet Silverado 1500 2021 GMC Sierra 1500 ... Read More

#21-NA-053: Radio Software Version V155 Update - (Jun 3, 2021) Subject:  Radio Software Version V155 Update This bulletin replaces PIC6425 and will replace PIT5791 for the models listed. Discard all previous versions of PIC6425 and... Read More

2020 - 2021 Corvette: Tips for Over-The-Air Software Programming March 12, 2021 Over-the-Air (OTA) software updates (Fig. 1) that are pushed to vehicles remotely continue to expand in frequency and use on GM models. Vehicles using the Global A... Read More

Service Update:  N202315730 Wheel Casting with Exposed Porosity Attention: This  service  update  includes vehicles  in  dealer  inventory  and  customer  vehicles  that  return  to... Read More