This is one of the most frustrating things I had to diagnose, and after watching numerous videos and blog posts, the basics of any vehicle starting was the cause. With any vehicle you need 2 thing, fuel and spark. With anything electrical, it seems, first to check is proper grounds. I’ve learned that grounding is a big problem with 2014-2018 model years. I’ve listed the 2014 Chevy Silverado No Run No Crank possible solutions in order (and most likely), as well as other ground points that could lead to less serious electrical issues.
Background: Yes, this was a grounding issue. I didn’t want to believe it, because the dealership less than a year ago, replaced the ground cables, battery, and fuse block on top of battery, (Dealer guess and check method!), so I mistakenly overlooked this item automatically when it was indeed the problem. There are 2 ground leads off the battery, 1 going to the block, other to the body point attachment rear of the passenger wheel. The body ground is a bad location due to weather exposure, snow, ice, rain, etc. In my case, truck was running great, then on a cold night I went to start, and nothing. Completely dead.
Here is a list of solutions starting with most important:
- Battery: Obviously, first thing is to check battery condition, clean terminals, and tight connection. If you have a volt meter at the battery, go ahead and check continuity with the fuse block on top of the battery.
- Add Negative Ground: Wire brush the paint from the passenger fender support/body point and attach an additional “Battery Cable 4 Ga” from the negative terminal to this point. Make sure to run this additional ground through the electric sensor that the other grounds to through.
- Quick check Tip: To see if you indeed have a grounding problem, attach your jumper cable from the negative battery terminal to the metal grounding strap on the drivers side of the engine compartment. Truck Fired right up!! No Crank, No Run Problem Solved!!
- Inspect Negative Ground: There have been cases where the negative ground contact to the body needed to be detached, cleaned and reinstalled. I did this, but the problem resurfaced less than a year later.
- Engine Compartment Fuse Box: Check Fuses and relays here, specifically the ones shown in photo below. I’ve found very rarely is there a blown fuse or relay, but I did have a relay burn up once on a previous Chevy truck when poor contact eventually lead to relay failure. Link to video at bottom to YouTube Video of thorough fuse box diagnosis.
- Drivers Side IP Fuse Box: Remove trim piece and check these fuses, specifically the 2 amp fuses. Little did I know, there are actually 2 relays hidden on the back side of this fuse block. There are 3 clips holding in the fuse block shown in the photo below, remove the fuse block, and inspect the hidden relays. Detailed YouTube Video below.
- Passenger Side IP Fuse Box: There is a passenger side fuse box opposite the driver’s side and same location, however, there are not any fuses or relays that would immediately create a No Run, No Crank Problem.
- Failed Resistor: If you think a resistor has went out somewhere in the CAN BUS, test the plug pins #6 and #14 with a digital meter and it should read 60 Ohms for the 2 resistors in line with each other. 120 x 2 = 60 Ohms, in resistor math.
- Starter: supposedly there is a service bulletin on this item, so I saved it. Apparently it calls for a newer type of starter, as there was an electrical issue, power or grounding with the old one.
Resources:
Online Search Terms: to find forums and videos search by the following: 2014 Silverado No Crank No Power, No Run No Crank,
www.NHTSA.gov website is public and lists GM Service Bulletins, however the site search itself doesn’t work well, you’re better off searching google for “2014 Chevy Silverado Service Bulletin”
Links:
https://www.gm-trucks.com/forums/topic/242842-no-crank-one-click-2014-silverado/
ChevroletForum.com