99 Hard to start - JeepForum.com

 
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post #1 of 7 Old 11-12-2013, 09:43 PM Thread Starter
jpwittrock
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2007 JK Wrangler 
 
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99 Hard to start

I have a 99 with 4.0. 147K miles. EVERYDAY almost every time I want to start the jeep I have to let the engine crank 3-4 times...stop cranking....and then on second try she will fire right up. Seems to me like it doesn't have the fuel pressure that it needs. Any suggestions?

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post #2 of 7 Old 11-16-2013, 07:21 AM
Batty505a
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Quote:
Originally Posted by jpwittrock
I have a 99 with 4.0. 147K miles. EVERYDAY almost every time I want to start the jeep I have to let the engine crank 3-4 times...stop cranking....and then on second try she will fire right up. Seems to me like it doesn't have the fuel pressure that it needs. Any suggestions?
It's either electrical or mechanical or combinations of both. Have you replaced the battery, cables or starter.. ?

2006 Chevy Silverado (DD)
1998 Jeep TJ Wrangler Sport (DD)
1993 Jeep YJ Wrangler *Parts Vehicle*
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post #3 of 7 Old 11-18-2013, 02:43 AM
uberxj92
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Rent a tester and check the fuel pressure. Should be easy to do and over 33 psi.
How does it run after it starts?
Agreed on the battery and cables.

http://www.jeepforum.com/forum/f177/92-xj-sadness-2075657/index2.html
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post #4 of 7 Old 11-19-2013, 09:32 AM Thread Starter
jpwittrock
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Yes its all fine after I start it and also if it sits just for an hour or so then she always starts fine. It only does this after it sits over night.
The last few days I have been turning the key to the "on" position and letting it sit for 20 seconds or so and it seems to be starting now on crank 5-6.
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post #5 of 7 Old 11-19-2013, 02:51 PM
uberxj92
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Fuel filter. Also run some Lucas fuel treatment about every third tank

http://www.jeepforum.com/forum/f177/92-xj-sadness-2075657/index2.html
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post #6 of 7 Old 11-21-2013, 02:45 PM
Batty505a
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Quote:
Originally Posted by jpwittrock
Yes its all fine after I start it and also if it sits just for an hour or so then she always starts fine. It only does this after it sits over night. The last few days I have been turning the key to the "on" position and letting it sit for 20 seconds or so and it seems to be starting now on crank 5-6.
Yeah I had a similar problem with my TJ. Replaced the battery biggest one I could find 750cc, cleaned then replaced the battery terminals then the battery cables
Still couldn't figure out why it wouldn't hold a charge
Or would start 1/2 the time. Turns out a worn out starter cable was the problem.
Now It's reliable enough to be a dd. Still need to replace the engine won't survive a long trip

2006 Chevy Silverado (DD)
1998 Jeep TJ Wrangler Sport (DD)
1993 Jeep YJ Wrangler *Parts Vehicle*
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post #7 of 7 Old 11-21-2013, 02:48 PM
955speedCh
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I had the same problem twice on my 98 XJ. It was the check valve on the fuel pump both times. Let the pressure leak back

1998 4.0L AW4

1995 4.0L AX-15 SOLD

Spider Monkey Off-Roading
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