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.
There are no comments for this article. Be the first to post a comment.
Security Code Security Code
Related Articles RSS Feed
2000 - 2018 Corvette: Service Bulletin: #PIP4925A: SES Light with Fuel Trim and or Oxygen Sensor Codes - (Mar 21, 2017)
Viewed 353 times since Wed, Mar 22, 2017
2014 - 2017 Corvette: Service Bulletin: #PIP5165E: Oil Dripping Out Of The Air Filter Box
Viewed 364 times since Mon, Jun 12, 2017
2012 - 2017 Corvette: Service Bulletin: #17-NA-157: Information on Spin-On Oil Filter Replacement for Gas Engines Designed with New Oil Pump Control Systems
Viewed 1273 times since Tue, May 16, 2017
2014 - 2017 Corvette: Service Bulletin: #PIP5234C: Information For Servicing Fuel Injector Oil Ring Seal Replacement For Fuel Odor And/or Extended Cranking Condition
Viewed 559 times since Tue, May 2, 2017
2014 - 2016 Corvette: Service Bulletin: Code P06DD No Or Low Oil Pressure
Viewed 1262 times since Sat, Jun 18, 2016
2014 - 2016 Corvette: Service Bulletin: #16-NA-250: Slow Cranking, Dead Battery and/or No Start
Viewed 970 times since Wed, Aug 10, 2016
2015 - 2016 Corvette Z06: Service Bulletin: 100 Octane Fuel Calibration
Viewed 1345 times since Wed, Dec 21, 2016
2015 - 2017 Corvette Z06: Service Bulletin: #PIP5455A: LT4 Supercharger Belt Tensioner Noise with A light Tip In AFM
Viewed 763 times since Wed, Apr 19, 2017
2016 - 2017 Corvette: Service Bulletin: Reminder - 2016/2017MY - Z51, Grand Sport and Z06 Corvettes - Required Maintenance/Chevrolet Complete Care
Viewed 835 times since Mon, Apr 10, 2017