Sharp loud rattle at start up

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Jul 27, 2022 | 11:05 PM

Anubisxj

Thread Starter

Newbie

Joined: Jul 2022

Posts: 2

Likes: 0

Model: Cherokee (XJ)

Sharp loud rattle at start up

Hi all new here had my 2000 xj for a while now and the other day it just started this rattle the engine did have a rebuild a fair while ago so am hoping the new pistons haven't broken a skirt. Anyway the sound is ugly it's only at start up and if I let the engine settle to idle and give it a light sharp blip it will create the sound otherwise it's totally quite through the revs oh and still have great oil pressure any help appreciated I did go through vids and the search options but haven't heard anything with the same sound

Jul 28, 2022 | 07:32 AM

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,578

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

You expect us to read that?
We're anxious to help and all, but don't torture us with that crap of no punctuation.

Jul 28, 2022 | 08:08 AM

Anubisxj

Thread Starter

Newbie

Joined: Jul 2022

Posts: 2

Likes: 0

Model: Cherokee (XJ)

Quote:

Originally Posted by cruiser54

You expect us to read that?
We're anxious to help and all, but don't torture us with that crap of no punctuation.

Apolagies on the lack of punctuation never was my strong suit so that being an issue cheers

Jul 28, 2022 | 08:34 AM

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,578

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Just edit it. This may help you edit it: It's only so we can help you.

Jul 28, 2022 | 08:45 AM

awg

CF Veteran

Joined: Mar 2016

Posts: 3,816

Likes: 725

Year: 96

Model: Cherokee (XJ)

Engine: 4.0

might be a lifter

try an engine stethoscope to see if you can pin down the noise a bit

might just be some bearing in the pulleys, A/C etc etc

Jul 28, 2022 | 09:18 AM

Saudade

CF Veteran

Joined: Aug 2020

Posts: 2,124

Likes: 578

From: SoCal

Year: 1988

Model: Cherokee (XJ)

Engine: 4.0L

While you're at it, check your motor/trans mounts. Perhaps the exhaust is banging against something or the mech fan is touching the shroud.

Jul 28, 2022 | 09:40 AM

dmoe69

Senior Member

Joined: May 2021

Posts: 560

Likes: 112

From: Western Washington

Year: 1988

Model: Cherokee (XJ)

Engine: 4.0L

Perhaps the starter is not completely disengaging from the flywheel

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Jul 29, 2022 | 03:26 PM

tech

CF Veteran

Joined: Jun 2016

Posts: 2,138

Likes: 278

From: Santa Clarita California

Year: 2001

Model: Cherokee (XJ)

Engine: 4.0L

It could help if we could hear the noise . maybe in a video .

Jul 29, 2022 | 03:43 PM

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,578

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

He/she is long gone. Most likely because I commented on their lack of punctuation making it difficult for us to provide real good free help...........
Perhaps they will find a site that posts are done like texting your BFF and dispenses poor info.

Jul 29, 2022 | 09:46 PM

#10

Roler

CF Veteran

Joined: Jan 2012

Posts: 3,170

Likes: 312

From: Australia

Year: 1997 (RHD)

Model: Cherokee (XJ)

Engine: 4.0 ltr

Quote:

Originally Posted by cruiser54

This one wasn't even too bad...because it was short.
Tried plowing through the first post in this one and gave up...

https://www.cherokeeforum.com/f2/96-...achine-266523/

Or this one! First sentence sounded promising! But alas...

https://www.cherokeeforum.com/f2/need-help-long-cranking-issue-has-turned-into-not-wanting-run-issue-249233/

Last edited by Roler; Jul 29, 2022 at 09:55 PM.