Supporting Vendors / Dealers - Advertising - Shop

2014 - 2015 Corvette: GM TechLink Article: Extended Cold Crank with Direct Injected Engines

Source:   GM TechLink
Date:   February 20, 2014

The 4.3L, 5.3L, and 6.2L (RPOs LV3, L83, L86 and LT1) direct injected (DI) engines (Fig. 14) available on some 2014-2015 Corvette, Silverado 1500, Suburban, Tahoe, Sierra 1500 and Yukon models may have an extended or long crank time during cold ambient air temperatures.

Fig. 14: Extended Cold Crank with Direct Injected Engines

Fig 14.

Direct Injection engines may have slightly longer cold crank times than that of port fuel injected engines. Direct Injection systems run at higher pressures and the mechanical pump on the engine must build up the required pressure before the first injection event occurs.

Following are typical DI engine crank times using gasoline:

Start up Coolant Temperature

If the temperature is below -22°F (-30°C), the recommendation is to perform an assisted start (such as with the use of a block heater).

For ethanol fuel, see #PIP5174: Extended Engine Crank Times When Using E85

- Thanks to Richard Renshaw

0 (0)
Article Rating (No 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 - 2017 Corvette: Service Bulletin: 17469 Fuel Leaks at the Primary Fuel Pump Module Flange
Viewed 216 times since Tue, Aug 14, 2018
2014 - 2018 Corvette: Service Bulletin: #PIP5248D: Stalling Shudder And/or Hard shifting Into 1st Gear Or Reverse Vibration On launch
Viewed 81 times since Wed, Aug 16, 2017
2014 - 2019 Corvette: GM TechLink: Warble Sound from Rear of Vehicle
Viewed 361 times since Tue, Aug 25, 2020
2015 - 2016 Corvette Z06: Service Bulletin: 100 Octane Fuel Calibration
Viewed 92 times since Wed, Dec 21, 2016
2016 - 2018 Corvette: Service Bulletin: #20-NA-207: Information on Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set - (Oct 6, 2020)
Viewed 94 times since Fri, Oct 9, 2020
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 513 times since Wed, Sep 23, 2020
2014 - 2016 Corvette: Service Bulletin: Low Oil Pressure Message/Light - Inspect Valve Lifter Oil Filter
Viewed 209 times since Fri, Aug 19, 2016
2016 - 2017 Corvette: Service Bulletin: #PIP5498: SES Lamp P050D P0300 Setting On A Cold Start
Viewed 212 times since Mon, May 22, 2017
2014 - 2018 Corvette: Service Bulletin: #PIP5179D: Extended Crank Cold With DI (Direct Injected) Engines - (Mar 27, 2018)
Viewed 53 times since Thu, Apr 6, 2017
2014 - 2016 Corvette: Service Bulletin: Surge Misfire Feeling Sensation During Highway Steady State Driving - (Jun 6, 2016)
Viewed 93 times since Wed, Jun 8, 2016