engine occasionally not starting... not sure of the issue - JeepForum.com
 
LinkBack Thread Tools
post #1 of 6 Old 08-10-2016, 04:20 PM Thread Starter
ZAM97
Registered User
1997 TJ Wrangler 
 
Join Date: Jun 2015
Location: Reston
Posts: 12
engine occasionally not starting... not sure of the issue

Hey all,

I have a 97 Sahara. Its in great shape and runs well 98% of the time.
However, Ive been having some recent troubles. The engine doesnt start sometimes; it revs but doesnt turn over completely. Ill come back to it later, and it will start. My friend and I had successfully jumpstarted it one time previous. It recently did it again today, but the jump didnt work? That was the last straw. I always come here first for advice though.

I dont know if its the battery or another electrical problem. Ill be mad if its the fuel pump; I just had the fuel pump replaced last winter, due to some RPM surging issues.
The Shell station that inspected my car and did the install botched the whole thing and now the gas gauge is not accurate. It left a bad taste in my mouth, believe me. My gf was the only reason i didnt get physical with the guy. He literally said there wasnt anything he could do. and this is just thing I need to go back with some righteous anger and perhaps sue them?

But thats the worst case scenario.. this may just be the battery.

ZAM97 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old 08-10-2016, 05:39 PM
TheBoogieman
Distubed Jeepaholic
 
TheBoogieman's Avatar
1999 XJ Cherokee 
 
Join Date: Aug 2006
Location: charlottesHELL
Posts: 40,267
I'd test the battery first and then the starter.

Quote:
Originally Posted by jeepinmichguy_ View Post
TheBoogieman is a jerk.
03' Rubicon/Zone 4" coils with 1" spacers up front/Rancho shocks/5.13 gears-35" MTZs/Black Magic brakes.
99' XJ /4.0L-AW4/ 5.5" lift / Rancho RS5000X shocks/33" DC Extreme country MTs. Jeep #18
TheBoogieman is offline  
post #3 of 6 Old 08-10-2016, 06:52 PM
Jerry Bransford
Administrator
 
Jerry Bransford's Avatar
2004 TJ Wrangler 
 
Join Date: Jan 2003
Location: Escondido, California
Posts: 71,917
I'm a little confused by the symptoms as described. Does the starter motor crank the engine over at its normal speed but the engine just never starts? Or does the starter not run to crank the engine at all?

Cranking is not the same as starting.

If it cranks normally but just doesn't start up quickly, try this and see what happens... before turning the ignition switch to Start, turn the ignition switch on-off-on 6=7 times with about a 1-2 second gap between each on-off-on cycle. THEN turn the ignition switch to Start and see what happens.

When you have a choice, buy American made.
Jerry Bransford is offline  
 
post #4 of 6 Old 08-10-2016, 08:01 PM
Knuckelhead
R.I.P. Knuckelhead
 
Knuckelhead's Avatar
2000 TJ Wrangler 
 
Join Date: Aug 2005
Location: Colorado
Posts: 21,936
After its been sitting for a while you could check the schrader valve on the fuel rail for pressure...
Knuckelhead is offline  
post #5 of 6 Old 08-12-2016, 06:51 AM
Beanlax06
Registered User
 
Join Date: Jul 2016
Posts: 13
Garage
I have read about an issue related to heat soak causing a hot engine not to start after sitting. There is a TSB but it specifically calls out the 2000-2004 TJs

http://www.wjjeeps.com/tsb/tsb_wj_1803103.pdf

04 TJ Wrangler
Beanlax06 is offline  
post #6 of 6 Old 08-12-2016, 06:24 PM
Knuckelhead
R.I.P. Knuckelhead
 
Knuckelhead's Avatar
2000 TJ Wrangler 
 
Join Date: Aug 2005
Location: Colorado
Posts: 21,936
It doesn't cause a no start, it causes a no fife on cylinder #3 due to vapor lock. The engine starts but cylinder #3 isn't getting enough fuel to fire...
Knuckelhead is offline  
Reply

Tags
battery , electric , fuel pump , no start , starter

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.



Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome