4.0 no start - 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 > 4.0 no start

The NEW Revolution Gear and Axle from 4LowParts.comTHE NEW! VANCO DUAL MODE 15/16″ Big Brake Kit w/BlaEngo winches available at www.rockridge4wd.com! Free shipp

Reply
Unread 08-25-2011, 07:49 PM   #1
TJ-chopper
Registered User
1997 TJ Wrangler 
 
Join Date: Sep 2010
Location: Hamburg Pa (near Cabela's), Pa
Posts: 62
4.0 no start

I'm looking at buying a 1992 YJ with a 4.0 that when you push in the clutch when you go to start it, it just cranks over and will not fire up, But if you don't push in the clutch just put it in neutral and crank it over and it will start right up. The man told me that he was told that when a new clutch was installed that a dowel pin was left out and the flywheel cracked an now the crank sensor is not lined up. Has anyone run into this before your help would be greatly appreciated. Thanks

__________________
1997 TJ 4.0, Automatic with a 4" Zone lift and BDS adjustable control arms, AA transfercase shifter relocator bracket, Real Flat fender, custom front bumper with Stinger and 8000 lb winch. custom rear bumper with swingout tire carrier, Viking soft top, 4.10 gears, SYE and Tatton DS , Goodyear Dura Trac 33x12.50-15 and still working on it.
TJ-chopper is offline   Reply With Quote
Unread 08-25-2011, 09:22 PM   #2
oldtime_ironman
Web Wheeler
1991 YJ Wrangler 
 
Join Date: Dec 2010
Location: 14304 Niagara Falls, NY
Posts: 2,540
Quote:
Originally Posted by Grizzbear View Post
I'm looking at buying a 1992 YJ with a 4.0 that when you push in the clutch when you go to start it, it just cranks over and will not fire up, But if you don't push in the clutch just put it in neutral and crank it over and it will start right up. The man told me that he was told that when a new clutch was installed that a dowel pin was left out and the flywheel cracked an now the crank sensor is not lined up. Has anyone run into this before your help would be greatly appreciated. Thanks
What the guy says does not make sense. If the sensor and flywheel did not line up, then it wouldn't hardly start at all, no matter what. I'm betting it's something else. But if it seems OK otherwise, well I hope its a good deal.
oldtime_ironman is offline   Reply With Quote
Unread 08-25-2011, 10:58 PM   #3
0SillyWilly0
Registered User
1991 YJ Wrangler 
 
Join Date: Jul 2011
Location: Holladay, Utah
Posts: 14
Very strange, mine will start with or without the cluch pushed in. I'm going to keep an eye on this because I'm curious of the issue.
0SillyWilly0 is offline   Reply With Quote
Unread 08-26-2011, 04:24 AM   #4
Mark05059
Registered User
1989 YJ Wrangler 
 
Join Date: Mar 2009
Location: quechee Vermont
Posts: 4,265
lets think about this... flywheels on a manual jeep are quite thick (the clutch rides on it) ... if it cracked then it would probably grenade itself. Personally I would pass on this thing as I wouldnt know what else the PO is trying to hide.
__________________
1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
|---L--[]lllllll[]-
()_) ()_)==O=)_)
Mark05059 is offline   Reply With Quote
Unread 08-26-2011, 05:58 AM   #5
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit, Michigan
Posts: 14,547
Weird problem but it is starting. What is he asking for it? What is the condiction and options on it? I think he is feeding a line of bs as far as the problem goes, but if the price is right that is what the forum is for, to help fix problems.
Que89YJ is offline   Reply With Quote
Unread 08-26-2011, 12:55 PM   #6
TJ-chopper
Registered User
1997 TJ Wrangler 
 
Join Date: Sep 2010
Location: Hamburg Pa (near Cabela's), Pa
Posts: 62
buying it

Yea I can buy it at a good price I also think that I'm getting B,S, on this also but it runs good. I also know that if a stick flywheel is cracked it will gernade but this has no vibration to it at all when it is running, so I'm going to buy it an then figure out what it is that is the problem. but if anyone has any idea as to the problem let me know. thanks
__________________
1997 TJ 4.0, Automatic with a 4" Zone lift and BDS adjustable control arms, AA transfercase shifter relocator bracket, Real Flat fender, custom front bumper with Stinger and 8000 lb winch. custom rear bumper with swingout tire carrier, Viking soft top, 4.10 gears, SYE and Tatton DS , Goodyear Dura Trac 33x12.50-15 and still working on it.
TJ-chopper is offline   Reply With Quote
Unread 08-26-2011, 01:38 PM   #7
Que89YJ
Web Wheeler
1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit, Michigan
Posts: 14,547
Like it has been stated that manual doesnt have anything to do with starting it. It would be easy enough to read at the asd and fuel pump relay in the PDC and see whats going on. See if the fuel pump is cycling on and if it has spark when you crank it without the clutch.

How much is he asking for it?
Que89YJ is offline   Reply With Quote




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.