2014 - 2016 Corvette: Service Bulletin: Surge Misfire Feeling Sensation During Highway Steady State Driving - (Jun 6, 2016)

#PIP5405A: Surge Misfire Feeling Sensation During Highway Steady State Driving - (Jun 6, 2016)
Subject:  Surge Misfire Feeling Sensation During Highway Steady State Driving  
Models:  2014-2016 Chevrolet Corvette
2016 Chevrolet Camaro
2016 Cadillac CTS-V
With engines 6.2L, LT1, LT4,
Built with MU5 8 speed auto trans

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern

    A concern of surge misfire feeling sensation during highway steady state driving in manual mode or automatic, typically 6th, 7th, 8th gear accelerating 1000 to 2500 rpm under load. TCC engaged, no misfire data or P0300 codes present.

Recommendation/Instructions

    This is operating as Designed. TCC slip with condition present, with scan tool technician may monitor plus or minus about 6-0 rpm at the most, usually lower. This occurs about 30 to 60% throttle. This is normal condition (fish bite / chuggle) with the TCC locked.

    The normal operation of engines and transmissions generate various vibrations and engine and transmission mounts try to isolate those vibrations from the rest of the vehicle.  While the mounts do a great job of isolating most vibrations there may still be certain engine loads and rpm’s that generate vibrations that customers may feel in the vehicle.  Changes in engine load or rpm will change the vibrations produced making it more or less apparent to occupants in the vehicle. When issues of this nature are encountered, like equipped vehicles should be compared, and if consistent results are identified, this should be considered a “normal” characteristic of the vehicle.

    Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

2.5 (2)
Article Rating (2 Votes)
Rate this article
Attached Files
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Name
Email
Security Code Security Code
Related Articles RSS Feed
2014 - 2019 Corvette: Service Bulletin: Oil Change Information for Chevrolet Corvette
Viewed 6584 times since Tue, Aug 14, 2018
2014 - 2018 Corvette: Service Bulletin: #PIP5290E: Oil Change information For 2014 - 2018 Chevrolet Corvette (US Only)
Viewed 848 times since Thu, Apr 20, 2017
2015 - 2020 Corvette: Service Bulletin: #17-NA-078: Information on Corvette Exhaust Tone During Wide Open Throttle While in Sport or Track Modes - (Sep 18, 2020)
Viewed 1541 times since Wed, Sep 23, 2020
2015 - 2017 Corvette Z06: Service Bulletin: #PIP5455A: LT4 Supercharger Belt Tensioner Noise with A light Tip In AFM
Viewed 1903 times since Wed, Apr 19, 2017
2016 - 2019 Corvette Z06 ZR1: Service Bulletin: #17-NA-408: Information on Charge Air Cooler (CAC) Draining and Filling - DTC P0300 Set - (Oct 9, 2020)
Viewed 692 times since Mon, Oct 12, 2020
2014 - 2017 Corvette: GM TechLink: Fuel Line Pulsation Sound
Viewed 1913 times since Wed, May 10, 2017
2014 - 2016 Corvette: Service Bulletin: Low Oil Pressure Message/Light - Inspect Valve Lifter Oil Filter
Viewed 1596 times since Fri, Aug 19, 2016
2014 - 2016 Corvette: Service Bulletin: Engine Misfire/Tick Noise, Malfunction Indicator Lamp (MIL) On, DTC P0300 Set
Viewed 2493 times since Tue, Jul 12, 2016
2016 - 2018 Corvette: Service Bulletin: #20-NA-207: Information on Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set - (Oct 6, 2020)
Viewed 729 times since Fri, Oct 9, 2020
2017 Corvette Z06: GM TechLink: Supercharger Idler Pulley Sounds
Viewed 518 times since Wed, May 10, 2017