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Stalling problems

Lycan

New Member
Joined
Nov 11, 2019
Messages
5
Forgive me if this has been solved and I am unable to find the thread but I'm having a stalling issue (as the name states) with my 04 k1500

-Friday October 8th it stalled out on me on my way home from work. My code reader gave me codes for crank sensor (p0336) and knock sensors (p0327, p0332). I gimped it home and didn't touch it over the weekend.
-Monday October 11, it stalled out on me in the gas station parking lot around 9 am. Gimped it back to work and didn't go anywhere the rest of the day, and it only gave codes for my knock sensors (p0327, p0332). Took it home from work and it stalled, but only gave me crank shaft sensor code. Replaced the sensor
-Tuesday October 12th it worked fine in the morning and throughout my day, but failed to start when I was headed home from a store. Got it started and 3/4 of the way home and it stalled on the road, refused to start for 2 hours so I had it taken in to a mechanic to diagnose
-Wednesday October 13th mechanic called and said that they couldn't find any issue whatsoever, only got a code for ABS system. Went to pick the truck up after work and it refused to start on first key turn so I left it at the mechanic for them to fix since they could now see the problem.
-Thursday and Friday they told me some moisture got into my connector for my PCM and that I was losing 5v from time to time which caused my issue. Truck worked all weekend (albeit seemed to take about a second longer to start) and gave no codes.
Today (Monday October 18th), I went to start the truck this morning and there were no lights or action at all from inserting and turning the key, as if the battery wasnt even in. On the 3rd try lights came on, truck started, but stalled every time I hit my brakes as if my alternator was bad on my way to work, including in an intersection and would start for a second before shutting off. I managed to turn the key to get it started, rev engine and keep moving the rest of the way to work however. Took it to the mechanic today, called for an update and they said there was no issue at all. Alternator and battery have been replaced within the past 6 months and I'm starting to get very frustrated. Any ideas on where to start looking?
 
I too need help with this same issue. My 04 avalanche just started doing the same thing. Stalled in reverse for the first time last week. And yesterday it wouldn't turn on after work. After a while, it turned on so I went home to park it. Almost stalled on me in traffic but luckily made it home.

As of right now, I parked it until I can look into it over the weekend.
 
Has anyone checked the fuel pressure in either of these trucks?

All grounds been verified good?

Both are common problems with trucks as old as these two are.
 
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