Lots of cold start engine noise after synthetic oil

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Sep 24, 2014 | 02:25 PM

#31

Radi

CF Veteran

Joined: Apr 2012

Posts: 5,302

Likes: 23

From: Wisconsin

Model: Cherokee

Quote:

Originally Posted by Firestorm500

Quote: "Sludge is a non-issue in engines built in the last 25 years..."

Unless you've got a Toyota V-6.

That thought hit me after I posted it. See the (properly designed) I added in, lol.

Besides, that problem is the owner's fault. Saint Toyota said so.

Sep 24, 2014 | 02:34 PM

#32

Firestorm500

CF Veteran

Joined: Apr 2009

Posts: 4,734

Likes: 12

Year: 2015, 2012

Model: Grand Cherokee (WK2)

Engine: 3.6L

Quote:

Originally Posted by Radi

Sweet. Glad you didn't have to dump $50 worth of new oil!

He could have kept it for his lawnmower.

Sep 24, 2014 | 02:35 PM

#33

Firestorm500

CF Veteran

Joined: Apr 2009

Posts: 4,734

Likes: 12

Year: 2015, 2012

Model: Grand Cherokee (WK2)

Engine: 3.6L

Quote:

Originally Posted by Radi

That thought hit me after I posted it. See the (properly designed) I added in, lol.

Besides, that problem is the owner's fault. Saint Toyota said so.

So were the faulty floor mats, which caused unintended acceleration.

Sep 25, 2014 | 09:02 AM

#34

Hog Rush

Thread Starter

Junior Member

Joined: Apr 2014

Posts: 88

Likes: 0

From: Alabama

Year: 2000

Model: Cherokee

Engine: 4.0

Day two...no unusual noise on cold start up.

Sep 25, 2014 | 09:43 AM

#35

bigbadon

Senior Member

Joined: Jan 2012

Posts: 952

Likes: 4

Year: 2004

Model: Grand Cherokee

Engine: 2000 4.0

Quote:

Originally Posted by Hog Rush

Day two...no unusual noise on cold start up.

Good. Could have been a bad anti-drainback valve on the filter. A little cold start noise once in while ain't unusual in a 4.0. A lifter might have bled down....sometimes after changing oil types debris can get lodged under the lifter check ball.

And this is for crimmy......What gives you the credentials to play backyard chemist? Make life easy, there are highly educated professionals that have already made that decision for you.