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2017 silverado 5.3 stalling

math_10silverado

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math_10silverado Enthusiast

math_10silverado

Posted
Posted

i am the only one that happen... this morning 3 time my truck die on my when i was at a stop... i tried 3 time to start it but it kept stalling instantly... the only way i was able to move again was to keep the trottle at 1/4 and put it in drive and when it started to go i floor it and it didn stall back... spoke to the dealer and they cant chek the truck before the 27... so i got a brand new truck that i dont know if i will get stuck whit it... 

 

for informaton i got a k&n cai a upr catch can and i fill the truck with 94 octane gas... 

 

anybody have ever see that... 

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vinemann12 Enthusiast

vinemann12

Posted
Posted

Is your K&N filter Wet or Dry type??

It's possible for K&N "Wet" filters to mess up MAS-Air flow sensors, causing these type issues..

Get some MAS spray and clean unit and replace filter with dry type..

 

Cheers---K

 

 

 

vinemann12 Enthusiast

vinemann12

Posted
Posted

Yup,, that does seem to be a bit odd..

Its possible that the cold air may have started MAS issues, or you have light oil build-up on unit..

Check out other threads on this problem for some additional background on stalling..

At least its a good place to start..

 

Cheers----K

 

math_10silverado Enthusiast

math_10silverado

Posted
  • Author
Posted

after a chekup the mas is clean so it is not the problem... what i have found is that the oil lever is stupidly high... like 3 inch over the top of the upper line on the dipstick... 

Rubyralph Enthusiast

Rubyralph

Posted
Posted

My Silverado oil level is also high, not as high as yours but way over full for a factory fill??

Was thinking of draining and refilling with 8 Qtrs. to see where it reads on the stick.

I first noticed it at about 1500 miles, anyone else run across this???

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Also noticed my "adaptive exhaust valve" is sticking at idle, I checked 14 other new 2017 Silverado  take-off exhaust systems this week at work and not one was sticking?

Not sure if there related issues or not??

carnau Enthusiast

carnau

Posted
Posted
2 hours ago, math_10silverado said:

after a chekup the mas is clean so it is not the problem... what i have found is that the oil lever is stupidly high... like 3 inch over the top of the upper line on the dipstick... 

Who changed your oil? I actually ran into this a few weeks ago with a truck doing the same thing. I was going to say to check and see if the oil was overfilled. 

 

There was a change in the oil capacity on these vehicles where they changed it from 8.5 to 8 quarts. We were noticing when people put the whole extra .5 quarts when people had 9 quarts in the truck it was causing a stalling issue. I have no idea why, but if you remove it, it will more than likely take care of your issue.

Rubyralph Enthusiast

Rubyralph

Posted
Posted
15 minutes ago, rtownsend said:

Mine is way over the full mark with 8 quarts also

This is the first GM engine that I've seen that may read over full on the dip stick with the correct amount of oil capacity?!

Mine is 3/4-1" above the full mark.

What ever happen to "do not over fill" or is there another TSB on the horizon?

 

 

carnau Enthusiast

carnau

Posted
Posted
2 minutes ago, Rubyralph said:

This is the first GM engine that I've seen that may read over full on the dip stick with the correct amount of oil capacity?!

Mine is 3/4-1" above the full mark.

What ever happen to "do not over fill" or is there another TSB on the horizon?

 

 

There is already a TSB out since 2014...

#PIP5231A: Concern of engine oil dipstick indicating an overfill - (Oct 9, 2014)

SI has been updated with the engine oil (with filter) fill specification of 8 quarts or 7.57 Liters for 7.5L 5.3L, 6.2L RPO's L83, L86 engines in the models lists above. 

Note: The correct “full” mark is the upper dimple and the “add” mark is the lowest bottom dimple on the Engine oil dipstick

Arth Enthusiast

Arth

Posted
Posted

You're catch can is causing the issue I think. Sounds like a vacuum leak at idle when warm. I would check all connections with your catch can.

Rubyralph Enthusiast

Rubyralph

Posted
Posted

I will drain my oil and replace the filter, then refill with 8 qtrs. to verify the oil stick level.

Seems strange that a new 2017 engine may be over filled with oil?

 

Will follow up when completed.

 

Merry Christmas and Happy New Year!

Drive safe.

Ralph 

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