Bad Engine? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > General Jeep Discussions > General Jeep Discussion

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 08-01-2011, 01:09 PM   #1
Newb
 
Join Date: Aug 2011
Posts: 6
Bad Engine?

I just bought a used '97 without diagnosing the engine rattle correctly. My mechanic says I have a bad piston and that engine replacement is the only way to go. Any other suggestions? Will an I6 fit instead of putting an I4 back in? Don't really have the coin to replace the engine right now. 5 speed trans. seems good, low 4 doesn't engage, high 4 seems OK.

manley59 is offline   Quote
Old 08-01-2011, 02:38 PM   #2
Jeeper
 
RedBones's Avatar
 
Join Date: Jul 2011
Location: Wv
Posts: 2,802
That sucks dude. I do not know about the I6 fitting, but I would think it would.

__________________
14 JK WW
11 JK
03 TJ
97 TJ
95 YJ
RedBones is offline   Quote
Old 08-01-2011, 02:48 PM   #3
Jeeper
 
C.L.'s Avatar
 
Join Date: Mar 2011
Location: North NJ
Posts: 2,202
Transmission and tfer case input shafts are different between the I4 and I6. It's a major operation to do an engine swap. Most people going through all the hassle end up putting something bigger than the chrysler 4.0, since so much has to be replaced anyway. Best bet is to try to unload it for close to what you paid for it, or replace the piston/sleeve.
C.L. is offline   Quote
Old 08-02-2011, 09:07 PM   #4
Jeeper
 
bc3_Jeep's Avatar
 
Join Date: Nov 2010
Location: NE corner of Iowa
Posts: 1,726
I have a spare 2.5l if interested.....
__________________
"For Gawd's sake, put a RELAY in there or you could burn the whole damn Jeep to the ground" ...this quote brought to you by people who do not understand the law.....Kirchoff's, Ohm's, or Faraday's.
Violation of KISS shall always ring false in TRUE engineering. - ME___
Had 75CJ5, 89YJ, 93YJ. Have 82CJ7 & 95YJ____Not one burnt yet due to lack of relays.
bc3_Jeep is offline   Quote
Old 08-09-2011, 08:39 AM   #5
Newb
 
Join Date: Aug 2011
Posts: 6
Please tell me more about your spare 2.5l.
manley59 is offline   Quote
Old 08-09-2011, 08:53 AM   #6
Jeeper
 
MattD's Avatar
 
Join Date: Nov 2010
Location: NE PA
Posts: 285
How well do you know this mechanic? How long did he have it before determining it was a bad piston and telling you to replace the engine. How does it run when under power and driving it? Have you checked the compression on your piston chambers?

There are a number of other things that might cause a rattling sound from an engine. While there are honest mechanics, way too many look for a $3000 job when a $100 bill might fix the problem.

At the very minimum - get a second opinion from another mechanic.
MattD is offline   Quote
Old 08-09-2011, 04:06 PM   #7
Newb
 
Join Date: Aug 2011
Posts: 6
Thanks Matt. Good call. I have used this Mechanic for 10 years but one of his newer guys came up with the diagnosis. Piston sleeves break off and then the piston bangs around beating up the cylinder wall so that even with replacement, the cylinder wall is shot.
manley59 is offline   Quote
Old 08-09-2011, 07:09 PM   #8
Jeeper
 
MattD's Avatar
 
Join Date: Nov 2010
Location: NE PA
Posts: 285
Well... then that really does suck.

Hope you can get your money back on a resale, or find a good deal on another engine.

Good luck!
MattD is offline   Quote
Old 08-10-2011, 08:05 AM   #9
Jeeper
 
bc3_Jeep's Avatar
 
Join Date: Nov 2010
Location: NE corner of Iowa
Posts: 1,726
Quote:
Originally Posted by manley59 View Post
Please tell me more about your spare 2.5l.

Send me an email... and I will get you PICs...etc. mebc3_2@yahoo.com

Engine came out of 95 YJ that had about 95K miles on it.

I heard it run before it was pulled and it sounded fine. I traded a 93 YJ I6 & AX15, T/C for the engine and a bunch of other parts (AX5, T/C, etc).

__________________
"For Gawd's sake, put a RELAY in there or you could burn the whole damn Jeep to the ground" ...this quote brought to you by people who do not understand the law.....Kirchoff's, Ohm's, or Faraday's.
Violation of KISS shall always ring false in TRUE engineering. - ME___
Had 75CJ5, 89YJ, 93YJ. Have 82CJ7 & 95YJ____Not one burnt yet due to lack of relays.
bc3_Jeep is offline   Quote
Reply

Tags
4 cylinder , 6 cylinder , bad piston , engine , motor

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cherokee Master Clutch Kits - Free Shipping! AOR Vendor Spotlight! Great Deals for Members. 0 04-25-2011 10:35 AM
Solenoid clicks, dead battery or seized engine? TheFix TJ General Discussion Forum 7 04-01-2011 11:19 AM
02 Jeep Wrangler... Misfires, P-0300, Reset Engine Light, Runs Fine, Repeat... sdh796 TJ General Discussion Forum 2 03-31-2011 12:01 PM
Getting no fuel to the engine Jmnem21 YJ Tech Forum 1 01-11-2011 04:41 PM
Engine knock and rough idle help rumpleskins TJ Tech Forum 5 12-26-2010 03:54 PM



Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 02:07 AM.


User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC