engine starts but turns over and over? - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 12-02-2008, 07:04 PM   #1
Join Date: Nov 2008
Location: NE Missouri
Posts: 26
engine starts but turns over and over?

My 93 YJ runs pretty good has 4 cyl. When I go to start it hot or cold it has to crank several times before it starts maybe like 6 or 7. But if I stop cranking before it starts then hit it again fires up right now. I was wondering if anyone knew what could cause this. Not much knowledge on fuel injected motors always had carbs. Maybe fuel pressure regulator or injectors?

crashmurdock is offline   Quote
Old 12-05-2008, 07:38 PM   #2
Join Date: Nov 2008
Posts: 24
Hello crash: If the motor starts after you let up on the key it could be your ignition switch.

Ralbon is offline   Quote
Old 12-05-2008, 09:52 PM   #3
jpdocdave's Avatar
Join Date: Mar 2008
Location: beach park, il
Posts: 8,162
sounds to me like it cranks longer than usual. common problem, usually fuel pressure is leaking down from the check valve in the fuel pump. taking longer for fuel to reach the fuel rail and start the jeep.

check your fuel pressure if possible. most jeeps don't have an external pressure regulator, if you did it would be on the fuel rail, and have a vacuum line going to it. almost no jeeps have them though, its all in the tank.

usually replace the fuel pump assembly, not sure if you can do the valve seperate.
"The danger to America is not Barack Obama but a citizenry capable of entrusting a man like him with the Presidency. It will be far easier to limit and undo the follies of an Obama presidency than to restore the necessary common sense and good judgment to a depraved electorate willing to have such a man for their president."
jpdocdave is offline   Quote
Old 12-07-2008, 04:14 PM   #4
scrambler1's Avatar
Join Date: Jan 2008
Location: vermont
Posts: 486
I believe you are right,the check valve is not replaceable by itself.
94' wrangler 4 cyl. 5 speed D30/8.8 ARB
82' scrambler 350 TBI/700r4 D30/Currie 9"
07' JK sahara
Whats the deal with the facebook crap?? ->->->->
Grown men should NOT be on Facebook.
scrambler1 is offline   Quote
Old 12-07-2008, 05:28 PM   #5
87YJWrangler's Avatar
Join Date: Sep 2008
Location: Owatonna, Minnesota
Posts: 640
My battery used to die when Id try to start cuz I had to crank it so much would that be caused by the same thing?
Mine: 1987 YJ 4.2 5spd soft top
98% of people when they are about to go into the ditch say "oh shit!" The other 2% are Minnesotans and when we are about to go into a ditch we say "Hold my beer and watch this shit!"
87YJWrangler is offline   Quote
Old 12-07-2008, 05:32 PM   #6
Join Date: Nov 2008
Location: NE Missouri
Posts: 26
Thanks guys I'm gonna have the presssure checked Probably end up replacing the fuel pump.
crashmurdock is offline   Quote
Old 11-27-2010, 10:36 AM   #7
MMata77's Avatar
Join Date: Nov 2010
Location: Michigan
Posts: 610
let me know how that works out. having similar problems with 93 2.5 litre. Gets worse as the temp is dropping though
Space for rent. Inquire within

MMata77 is offline   Quote
Old 11-28-2010, 02:30 PM   #8
Join Date: Jan 2010
Location: Las Cruces, NM
Posts: 2,303
On the 94s there is a fuel pressure regulator located on the front of the injector rail.
(Sold)1994 Jeep Wrangler 2.5L, Bestop top
/w steel half door and slider windows
5 speed, 2.5" lift, 31" tires,rack lights
Garyk is offline   Quote
Old 11-28-2010, 09:17 PM   #9
Join Date: Nov 2010
Posts: 16
I would start with a good service manual and follow the diagnostics in the troubleshooting section, sometimes it pays to take it slow and verify a faulty componet before you swap and pray.

mholloway1809 is offline   Quote

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

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 10:55 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2016 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