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Unread 11-12-2013, 08:43 PM   #1
jpwittrock
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2007 JK Wrangler 
 
Join Date: Sep 2013
Location: Kingfisher, Oklahoma
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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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Unread 11-16-2013, 06:21 AM   #2
Batty505a
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1998 TJ Wrangler 
 
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Location: Fairfax, Va
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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.. ?
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Unread 11-18-2013, 01:43 AM   #3
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.
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Unread 11-19-2013, 08:32 AM   #4
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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Unread 11-19-2013, 01:51 PM   #5
uberxj92
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Fuel filter. Also run some Lucas fuel treatment about every third tank
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Unread 11-21-2013, 01:45 PM   #6
Batty505a
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1998 TJ Wrangler 
 
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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
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Unread 11-21-2013, 01:48 PM   #7
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
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