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Discussion Starter · #1 ·
This is kind of long I apologize, but this issue has been happening for some time and I can't seem to get it fixed.

I bought this 2012 malibu with 80XXX miles, like brand new. I got an autostart kit installed as a gift. It was working fine then my battery died one day, and I got it replaced. That's where this all started. Since then the car would stop starting randomly. It would crank, but not turnover. I got the autostart uninstalled, thinking that would solve it. It didn't solve it so I took it in to multiple dealerships for a diagnostic. One place said it was my fuel pump relay switch. So that was replaced, but the issue came back a month later and is giving me the same problem. I took it in again, and they couldn't find anything wrong with it. The very next day it didn't start again and I couldn't accelerate while driving and had to pull over because the car came to a complete stop while running. I turned it off, went back in the trunk and hit the fuse block and it worked. I brought it back in again, and they said my entire fuse block was bad (burnt switches and wires) and they replaced the whole thing. It was working fine for a week. Now, I have the same issue again and I don't want to go back to that place because it seems like they don't know what they are doing.

I am at a loss here. It seems like fuel isn't going to the engine, that's all I know. This whole time, I've been taking it to GM Certified dealerships, it's very ridiculous how they have charged me for all this with no solution. Any help would be appreciated, thank you!
 

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2011 Malibu LTZ 3.6L V6 Red Jewel Tintcoat
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Step 1: Get all 4 code families scanned ( B C P U), not just the common P codes.

You could have poor connections or the battery could have been sitting on a shelf for so long that it was weak to begin with. Find the date-of-manufacture code and see if it's from before Covid-19 started.
 

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You may have a odd issue. Take it back as the repair only lasted a week and it's still not right.
 

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Discussion Starter · #4 ·
Update: I brought it back to the dealership they replaced the fuel pump. Didn’t last me and I’m still having the same problem. They said the fuse block looks okay and couldn’t find anything at all. I’ve bought it in a ton of times and they can’t get it to fail like it does with me. When I go to the fuse block, the fuel pump relay switch is burning hot and when I switch it out with another one, that gets hot too.
 

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2012 Malibu 2.4 LT1 All Star
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Check the fuse box in the trunk, the gray wire running to the relay.. Heats up, burns up caused mine to have the same symptoms..

You'll notice quite a few post with the same issue, changing the pump, relay and box only solve it for a short time. If it's the same issue you need to replace the faulty wire, I've seen it fully discolored and not at all, but you can tell the wire is burnt by how tough the wire is, nothing should be getting warm, that's a clear sign something is bad, I drove mine from AR to CA, it all stayed cool to the touch, before that it would be warm, and sometimes even hot to the touch.
 
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