Oil Leak

NotoriousGT350 · January 29, 2021

Just had the dealer change the oil, filters, rotate tires couple weeks ago and notice a spot on the driveway. I thought it might have been a work truck from Plumbers coming over working on some main line issues. But yesterday noticed more spots and just looked underneath. Here is what I found.

It's a CPO truck I bought last May and already this. My first pickup truck too. Taking it to the dealership tomorrow at 10am. Told them they better have another truck for me to get around to work.

Edited January 29, 2021 by NotoriousGT350

BIGDOGx · January 29, 2021

2 hours ago, NotoriousGT350 said:

Just had the dealer change the oil, filters, rotate tires couple weeks ago and notice a spot on the driveway. I thought it might have been a work truck from Plumbers coming over working on some main line issues. But yesterday noticed more spots and just looked underneath. Here is what I found.

It's a CPO truck I bought last May and already this. My first pickup truck too. Taking it to the dealership tomorrow at 10am. Told them they better have another truck for me to get around to work.

Oil filter leaking?

NotoriousGT350 · January 29, 2021

That is what I'm thinking. Seems to be right there maybe. Not first time I've had oil service done when the filter was not tightened properly(not this vehicle).

JimCost2014 · January 29, 2021

3 hours ago, NotoriousGT350 said:

Just had the dealer change the oil, filters, rotate tires couple weeks ago and notice a spot on the driveway. I thought it might have been a work truck from Plumbers coming over working on some main line issues. But yesterday noticed more spots and just looked underneath. Here is what I found.

It's a CPO truck I bought last May and already this. My first pickup truck too. Taking it to the dealership tomorrow at 10am. Told them they better have another truck for me to get around to work.

They could just have been really sloppy when they changed the oil.

They may just be lazy and are trying to work around the skid plates, making a big mess as they go.

Edited January 29, 2021 by JimCost2014

OnTheReel · January 29, 2021

When my oil cooler lines went bye-bye, it was dripping off that same skid plate up front. Really no good reason for oil to be that far forward from an oil change.

NotoriousGT350 · January 30, 2021

17 hours ago, OnTheReel said:

When my oil cooler lines went bye-bye, it was dripping off that same skid plate up front. Really no good reason for oil to be that far forward from an oil change.

It was my oil cooler line they found out. Ordering the part and I should have the truck back in the shop on Tuesday. Service advisor said he's seen a few of those happen already.

Edited January 30, 2021 by NotoriousGT350

ericarenee · January 31, 2021

what is it with GM and Leaking oil cooler lines. I have a 2004 Express 3500 HD 6.0 V8. I have had oil cooler lines leak several times on it. This last time the SHOP Had some made at a local hydraulic repair shop that works on heavy construction equipment..

Grrrrrrrr .

OnTheReel · January 31, 2021

It’s happened a lot on these new trucks, sometimes catastrophically.

Dealer tried to make me wait a week before they could look at it. I convinced them to take it the same day over concerns that it would get worse. Wasn’t going to be driving around a time bomb for a week. Although maybe I should have just let the engine go and handed GM the huge bill.

NotoriousGT350 · January 31, 2021

I’ve looked through some of the 22 page thread about about this problems with guys blowing oil all over hwy and left to be towed. Maybe some seized motors too.

EricTheRed · February 1, 2021

Is there an aftermarket oil cooler line kit available?

NotoriousGT350 · February 1, 2021

I'm wondering what's to say it will not happen again with the replacement part? Unless GM has redesigned them, but I doubt it.

ericarenee · February 1, 2021

19 hours ago, EricTheRed said:

Is there an aftermarket oil cooler line kit available?

hydraulic repair shop. One that work on high pressure equipment , repair construction equipment can custom make them. It cost me 1,400.00 for my 2004 express 3500hd van . I do not know the name of the shop my mechanic used . But i do know they have not leaked . I Cant have one tiny drip as i park in customers driveways. its a GIANT NO NO and very unprofessional

redwngr · February 1, 2021

We know they don't all leak.

Best plan might be to find out where the oil is coming from before deciding major surgery is necessary.

NotoriousGT350 · February 13, 2021

Took a week to get the part and had it replaced in one day. I'm just going to keep an eye on it from time to time.

finn5033 · February 9, 2022

I know this is an old thread, but my 3500 with the 6.6 gas engine is in getting the oil cooler line replaced because it was leaking. Haven't been able to find any info online about this being a problem on the HD's.