How long do 4.0s really last?

Reply Subscribe

Thread Tools

Search this Thread

Dec 15, 2011 | 01:12 PM

#76

stock95sport(for now)

CF Veteran

Joined: Nov 2011

Posts: 1,122

Likes: 0

From: Manchester, N.H.

Year: 1995

Model: Cherokee

Engine: 4.0 HO

Quote:

Originally Posted by TheJerm

The AMC straight 6 really hasnt changed since the 60's, they just added computers. The reason why inline 6's are so reliable is that they are inherently balanced which means the bearings last longer.

Yeah, that's what i was taught also. All the old 250(4.0L

) straight 6 chevys, and the straight 6's ford used in the f250/350's in the mid 80's(probably longer, but those are the ones i remember) were indestructible! Inherently balanced was the exact term. Or inherently more balanced I suppose.

Dec 15, 2011 | 04:08 PM

#77

jeep4jason

Newbie

Joined: Dec 2011

Posts: 16

Likes: 0

From: kernersville n

Model: Cherokee

I have a roaring when I am driving...any ideas what this could be or are jeeps just loud? Its a 2004 WJ Grand Cherokee

Dec 15, 2011 | 04:48 PM

#78

TheJerm

CF Veteran

Joined: Jun 2010

Posts: 2,501

Likes: 4

From: Flint/Asheville

Year: 1995

Model: Cherokee

Engine: 4.0 HO

Quote:

Originally Posted by jeep4jason

I have a roaring when I am driving...any ideas what this could be or are jeeps just loud? Its a 2004 WJ Grand Cherokee

Roll up your window

Dec 15, 2011 | 11:22 PM

#79

-Dom-

CF Veteran

Joined: Jan 2011

Posts: 1,056

Likes: 1

From: 813

Year: 2001

Model: Cherokee

Engine: 4.0 str8 6

&&&;(()$6;:3//--

Dec 15, 2011 | 11:35 PM

#80

dogger15

CF Veteran

Joined: Apr 2010

Posts: 4,339

Likes: 1

Model: Cherokee

Quote:

Originally Posted by jeep4jason

I have a roaring when I am driving...any ideas what this could be or are jeeps just loud? Its a 2004 WJ Grand Cherokee

It's the thousands cheering you on for the roaring sound

Dec 15, 2011 | 11:41 PM

#81

99 Purple XJ

CF Veteran

Joined: Oct 2010

Posts: 1,889

Likes: 2

From: Long Island N.Y.

Year: 1999

Model: Cherokee

Engine: I6 4.0

On allpar.com theres a 88 cherokee 4.0 with all original 612000 miles

Dec 16, 2011 | 12:28 PM

#82

ToasterOnWheels

Seasoned Member

Joined: Jun 2010

Posts: 420

Likes: 0

From: N/A

Quote:

Originally Posted by jeep4jason

I have a roaring when I am driving...any ideas what this could be or are jeeps just loud? Its a 2004 WJ Grand Cherokee

Yes its the sound a WJ makes as its dying. Im sorry to say this but your WJ is telling you to buy an XJ. Its ok though because we all know its really thinking of your best intrest.

Dec 16, 2011 | 08:33 PM

#83

highmileage

CF Veteran

Joined: Oct 2011

Posts: 1,268

Likes: 1

From: Bakersfield CA

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by TheJerm

The AMC straight 6 really hasnt changed since the 60's, they just added computers. The reason why inline 6's are so reliable is that they are inherently balanced which means the bearings last longer.

true but kaiser and amc could of at least kept the Tornado six in the lineup, would love to see one fuel inj.

Dec 19, 2011 | 02:50 PM

#84

A Black Cherokee

Thread Starter

Member

Joined: Nov 2011

Posts: 184

Likes: 0

Quote:

Originally Posted by ToasterOnWheels

Yes its the sound a WJ makes as its dying. Im sorry to say this but your WJ is telling you to buy an XJ. Its ok though because we all know its really thinking of your best intrest.

That made me laugh a little.