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2019 Silverado trailboss 5.3l engine oil cooler line failure

jasnak
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BIGDOGx Senior Enthusiast

BIGDOGx

Posted
Posted

It's not a matter of it will leak but when. They have been using lines that leak for decades now, what's new is some of them blowing out completely and causing the engine to be damaged. 

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Bobv07662
Bobv07662

I've spoken to a good friend who is a 30 + year tech at a North Jersey Chevrolet dealer. So far he has seen two '19 Silverados with blown oil cooler hoses. He said to look for a yellow witness stripe

white94rx
white94rx

Jesus Christ man. What is going on with Chevy? Failing oil lines, water leaks, software issues? You'd think they were BMW, and not good old reliable Chevy. I'm a BMW tech btw, and our quality has gon

1997SierraSLT
1997SierraSLT

sounds like the best thing to do is run it until the engine seizes up.  

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Randon New Member

Randon

Posted
Posted

Another one.  2019 GMC AT4, 36k miles. Truck was idle all day, left my house in the afternoon and temp was 55 degree's in Arkansas.  Drove about 1 mile, engine was hardly warm.  At a stop light, it turned green and as soon as started to move...Boom no oil pressure, turn off truck.  I was on busy road but was in right lane and able to pull into driveway within 15-20 yards and 15 seconds.  Killed engine and got out and notice a bucket of oil from where I just on the road.  Another batch about the same amount was under my truck in the spot i just parked.   Towed to dealership.  Oil Cooler line busted.  waited 1.5 weeks and got the call today.   line replaced, oiled up and cleaned....engine is locked up.  inspection tomorrow to determine if rebuild or new engine.  Told it will determine how much damage is done.   I am shocked that the engine is damaged.  Stopped almost instantly and it was still dropping oil well after the engine was off.  

 

Now how long will this take? 

gemarsh Senior Enthusiast

gemarsh

Posted
Posted
1 hour ago, Randon said:

Another one.  2019 GMC AT4, 36k miles. Truck was idle all day, left my house in the afternoon and temp was 55 degree's in Arkansas.  Drove about 1 mile, engine was hardly warm.  At a stop light, it turned green and as soon as started to move...Boom no oil pressure, turn off truck.  I was on busy road but was in right lane and able to pull into driveway within 15-20 yards and 15 seconds.  Killed engine and got out and notice a bucket of oil from where I just on the road.  Another batch about the same amount was under my truck in the spot i just parked.   Towed to dealership.  Oil Cooler line busted.  waited 1.5 weeks and got the call today.   line replaced, oiled up and cleaned....engine is locked up.  inspection tomorrow to determine if rebuild or new engine.  Told it will determine how much damage is done.   I am shocked that the engine is damaged.  Stopped almost instantly and it was still dropping oil well after the engine was off.  

 

Now how long will this take? 

You shut engine off? Now it's locked up? Out of warranty? Sounds like it was driven into the shop bay to work on it.

Randon New Member

Randon

Posted
Posted
20 hours ago, gemarsh said:

You shut engine off? Now it's locked up? Out of warranty? Sounds like it was driven into the shop bay to work on it.

engine was shut off in under 30 seconds. Dealership told me it is locked up.  still well under the 5 year, 60k  powertrain warranty. 

 

Surely the mechanics wouldn't start it.  I know for sure the tow truck guy did not. He also suck a note on the window that truck was out of oil, do not start.  We did this because it was taken in on a sunday night when nonone was there.  

I also called first thing Monday to advise them and they told me they would  push it in.

 

Do i have any way to know if they started it? 

 

gemarsh Senior Enthusiast

gemarsh

Posted
Posted
6 hours ago, Randon said:

engine was shut off in under 30 seconds. Dealership told me it is locked up.  still well under the 5 year, 60k  powertrain warranty. 

 

Surely the mechanics wouldn't start it.  I know for sure the tow truck guy did not. He also suck a note on the window that truck was out of oil, do not start.  We did this because it was taken in on a sunday night when nonone was there.  

I also called first thing Monday to advise them and they told me they would  push it in.

 

Do i have any way to know if they started it? 

 

I don't know how a regular person could tell if it was started. 

 

Will warranty cover the engine? One of those things I worry about. Yes the line is under warranty, but the engine isn't because it failed because of the line.

 

I would hope service didn't start it, but one would never know.

Transient Senior Enthusiast

Transient

Posted
Posted
On 12/30/2021 at 4:00 PM, gemarsh said:

I don't know how a regular person could tell if it was started. 

 

Will warranty cover the engine? One of those things I worry about. Yes the line is under warranty, but the engine isn't because it failed because of the line.

 

I would hope service didn't start it, but one would never know.

False.  Engine is covered because the line is covered.  The line is not only the source of failure, but also falls under powertrain warranty.  If the dealership tries to claim what you just said a lawyer somewhere will be having a very good day. 

gemarsh Senior Enthusiast

gemarsh

Posted
Posted
4 hours ago, Transient said:

False.  Engine is covered because the line is covered.  The line is not only the source of failure, but also falls under powertrain warranty.  If the dealership tries to claim what you just said a lawyer somewhere will be having a very good day. 

Yeah, I forgot the question mark at the end. I was wondering if the gm warranty was like some of those aftermarket parts... "We will warranty this sh!tty part, but when it fails and destroys your vehicle, we aren't responsible."

 

Fan belts come to mind.

Transient Senior Enthusiast

Transient

Posted
Posted
18 hours ago, gemarsh said:

Yeah, I forgot the question mark at the end. I was wondering if the gm warranty was like some of those aftermarket parts... "We will warranty this sh!tty part, but when it fails and destroys your vehicle, we aren't responsible."

 

Fan belts come to mind.

Fortunately, the GM warranty doesn't have more holes in it than swiss cheese.  I use to work for a parts supplier to dealerships.  The Hyundai dealership I supplied described their warranty this way.  I had Chevy, Toyota, Honda, and Nissan dealers in the vicinity and they never described their warranty this way. 

  • 2 months later...
TMD Enthusiast

TMD

Posted
Posted

Mark me down for another failure. I was on my way home from work and got a code: "add engine oil". Thankfully I was close to my dealer, so I called and drove directly there. When I pulled into their lot, the truck was leaking oil pretty badly. The tech said the crimp had failed, but I was lucky because the hose hadn't blown off entirely. Thankfully, he has the parts in stock and is going to replace the lines today. 

Jac365 Enthusiast

Jac365

Posted
Posted
On 3/3/2022 at 5:38 AM, TMD said:

Mark me down for another failure. I was on my way home from work and got a code: "add engine oil". Thankfully I was close to my dealer, so I called and drove directly there. When I pulled into their lot, the truck was leaking oil pretty badly. The tech said the crimp had failed, but I was lucky because the hose hadn't blown off entirely. Thankfully, he has the parts in stock and is going to replace the lines today. 

Was this the second failure on the same vehicle?? If so I don't get a warm and fuzzy feeling about the replacement hoses. Mine blew  (catastrophically) at 6K miles. Thankfully I was able to get engine shut down within 5-6 seconds of line blowing, but still dumped 5 of the 8 quarts of oil in that time. New line has been good.....so far

  • 2 weeks later...
Josh Rosenberg New Member

Josh Rosenberg

Posted
Posted

My 2019 5.3 with 88k miles was driving on I 80 in dangerous area 70 mph had a cel light on and all of a sudden no oil pressure started smoking shut off truck on highway in dangerous area .  engine is blown up crimp failure oil completely blew out.

Ohiofan1974 New Member

Ohiofan1974

Posted
Posted

Okay all..thank God for the internet. 2019 TrailBoss 28k miles. Left home, turned the corner…light flashing and no oil pressure. Pulled into parking lot and shut off truck. Oil everywhere on drivers side. 11 days earlier, warranty expired. 3yr/36k miles. Hopefully this is covered. 

BC336FB1-1BC5-43EC-98BB-4A020C21D8F6.jpeg

814E4DFB-3AAF-41EB-A183-8D756370540C.jpeg

  • 2 months later...
hommer1 New Member

hommer1

Posted
Posted

Had the crimp on hose fail couple weeks ago. They replaced the line and put oil in told me it was good started making noise and 2 Quarts low. took back to dealer they checked it said ok. Took to my Mechanic he said low oil pressure and rattling in bottom of engine. Took it back to dealer contacted GM they had them pull the oil pan and take pictures. The crank is bad. Gm wont cover said it wasnt the engine fault it was starved for oil. No ****** your line broke and you warrantied that. only had 46000 miles on it. and they wont replace the engine.

PS they are trying to blame it on a Turkey that hit the grill and cracked it a month before this. is the reason the line crimp failed.

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