87 4.2 yj died and won't start please help - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > 87 4.2 yj died and won't start please help

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineIron Rock Offroad products - get them from Kolak!TERAFLEX JKU 2.5" Elite LCG Long FlexArm Lift Kit w/

Reply
Unread 01-16-2015, 01:41 AM   #1
Tofu77
Registered User
 
Join Date: Feb 2013
Location: venice, Fl
Posts: 12
87 4.2 yj died and won't start please help

I have a 1987 yj with the 4.2L with no nutter.
Today I was driving around when I took a turn and started to accelerate as I went to shift to the next gear I felt like the engine lost 75% of its power. I tried to rev my engine to give it some gas and as I did that it just shut off. I let it sit for awhile before trying to start it, engine was cranking and had power to everything but didn't want to start. I tried to push it down a hill and drop the clutch to see if maybe I could at least get home.

I have no idea what could possibly be wrong, I just replaced my ignition switch (located on top of the column) a week ago and has been running a lil rough but otherwise fine. If anyone could help me with some ideas would be great.
The jeep is my daily driver so I need to get her back up and running

Tofu77 is offline   Reply With Quote Quick reply to this message
Unread 01-16-2015, 02:32 AM   #2
Tofu77
Registered User
 
Join Date: Feb 2013
Location: venice, Fl
Posts: 12
Also ik it's getting fuel, because i took the filter off and could see the gas, could hear the starter working just jeep didn't want to start. Even after I had a friend tow me home I tried popping the clutch and got it to fire fire at 10 mph but was barely running and when I would push the clutch in no matter if I even put the gas pedal to the floor it just dies.

Any suggestions are welcome, I've thought it would be icm maybe but it's not that old
Tofu77 is offline   Reply With Quote Quick reply to this message
Unread 01-16-2015, 04:00 AM   #3
timatoe
Web Wheeler
 
timatoe's Avatar
1990 YJ Wrangler 
 
Join Date: Aug 2006
Location: Grass Valley California
Posts: 14,050
Ignition Control Module
__________________
Quote:
Originally Posted by George Orwell
We sleep safe in our beds because rough men stand ready in the night to visit violence on those who would do us harm.
timatoe is offline   Reply With Quote Quick reply to this message
Unread 01-18-2015, 12:53 PM   #4
Tofu77
Registered User
 
Join Date: Feb 2013
Location: venice, Fl
Posts: 12
Well after further inspection of the engine and trying to find the problem. I have found that 3 of my passenger engine mount bolts all snapped off and the distributor had fallen onto the engine mount. And I think that has caused it to also jump timing. And the fun part is I have brown dog engine mounts already and the bolts broke
Tofu77 is offline   Reply With Quote Quick reply to this message
Unread 01-18-2015, 01:25 PM   #5
Mark05059
Registered User
1989 YJ Wrangler 
 
Join Date: Mar 2009
Location: quechee Vermont
Posts: 4,575
sounds like some drilling and easy outing is in your future
__________________
1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
|---L--[]lllllll[]-
()_) ()_)==O=)_)
Mark05059 is offline   Reply With Quote Quick reply to this message
Unread 01-19-2015, 07:55 PM   #6
Tofu77
Registered User
 
Join Date: Feb 2013
Location: venice, Fl
Posts: 12
Easy drilling? It doesn't seem to be easy. If anyone has any useful tips on getting the bolts out without dropping the engine would be greatly appreciated just doesn't seem like you can get to all the bolts while the engine is still in the jeep
Tofu77 is offline   Reply With Quote Quick reply to this message
Unread 01-19-2015, 08:06 PM   #7
Mark05059
Registered User
1989 YJ Wrangler 
 
Join Date: Mar 2009
Location: quechee Vermont
Posts: 4,575
remove the fender(s)
__________________
1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
|---L--[]lllllll[]-
()_) ()_)==O=)_)
Mark05059 is offline   Reply With Quote Quick reply to this message
Unread 01-19-2015, 10:58 PM   #8
Luuca
TYPICAL /F12 HOOLIGAN
 
Luuca's Avatar
2005 LJ Wrangler 
 
Join Date: Apr 2012
Location: Corona, CA
Posts: 3,536
Quote:
Originally Posted by Tofu77 View Post
Easy drilling? It doesn't seem to be easy. If anyone has any useful tips on getting the bolts out without dropping the engine would be greatly appreciated just doesn't seem like you can get to all the bolts while the engine is still in the jeep
Depends on where the bolts snapped off. If you are lucky, there may be some small nubs there you can grab onto with some vicegrips and back them out. Just be sure to hit them with your PB Blaster type creeping oil of choice and/or use the blue wrench on them to help get them out. If, on the other hand, they broke off flush or a little inside the block, you'll need a quality "easy-out" tool and some patience - PB Blaster and heat are still your friend in this case as well.

Best method if you don't want to pull the engine is to remove the fender and attached items to allow clear access to the engine block side. Replace with Grade 8 bolts and use some anti-sieze.

Best of luck
__________________
91 YJ "Alice" 2.5L, AX5, 2.5" OME 36Rs, 1" Shackles, 32" Yoko ATs, 4.10 D30/35 Busted Knuckles
05 LJ Rubicon "Ghost" 4.5" RE, 1.25" BL, 33" Atturo MT, 4.10 D44 F/R Locked
Luuca is offline   Reply With Quote Quick reply to this message
Unread 01-20-2015, 05:49 AM   #9
fishadventure
Registered User
1991 YJ Wrangler 
 
Join Date: Jul 2013
Location: Morrisville, VT
Posts: 1,450
Quote:
Originally Posted by Tofu77
Easy drilling? It doesn't seem to be easy. If anyone has any useful tips on getting the bolts out without dropping the engine would be greatly appreciated just doesn't seem like you can get to all the bolts while the engine is still in the jeep
An easy-out is a broken bolt extractor.....

A slab of wood under the oil pan can be a good short term way of jacking up motor without damaging anything.
__________________
How many old threads actually convince *you* to read all 36 pages? http://www.jeepforum.com/forum/f12/length-envy-build-thread-629700/
fishadventure is online now   Reply With Quote Quick reply to this message
Unread 01-21-2015, 12:38 PM   #10
Tofu77
Registered User
 
Join Date: Feb 2013
Location: venice, Fl
Posts: 12
Well looks like I'll be running to the store to buy some easy-out tools to pull these bolts because all 4 broke flush with the block. Thank you all for your help, seeing how I'm not that mechanically inclined
Tofu77 is offline   Reply With Quote Quick reply to this message
Unread 01-21-2015, 01:18 PM   #11
dancytron
Registered User
1990 YJ Wrangler 
 
Join Date: Jun 2008
Location: st. louis
Posts: 1,497
Do not break the easy outs off in the hole. They are super hardened steel and are virtually impossible to drill out.

It is one of those things where there would be no shame in going to a pro if you aren't confident you can do it without screwing it up.
dancytron is online now   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.