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Old 09-17-2013, 05:55 AM   #1
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This morning i went to turn on jeep and it was hard to start it cranked but didnt start then i tryed again and it cranked 3-4 times then started but wanted to stall out but didnt. What wrong i have a new battery, plugs was replace 1 1/2 year ago i change the oil all the time i cleaned the tbs 8 month ago i have 1/2tank of gas. Its getting cold out and i fell its making it worse.Do i need a new cranks sensor. Can someone help me please

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Old 09-17-2013, 06:29 AM   #2
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my 2000 sport does not like the morning to much.. i turn the key to the on position and leave it there for a good few seconds.. usually while i put my lunch in the back seat and get in and adjust radio.. when i do start it i give it a very tiny tap of the gas (barely moves the rpms)

mine does this because the fps (fuel pressure sensor) is allowing fuel to bleed back into the tank and i dont have fuel presure... leaving the key in the on position lets me build up some before trying to start... its a simple place to start when it comes to getting a car that has sat for a bit to start.

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Old 09-17-2013, 08:29 AM   #3
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Ok thanks
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Old 09-17-2013, 11:29 AM   #4
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Yup that sounds like the regulator

the Fuel Pressure Regulator is mounted on top of the tank, its both your fuel filter and a one way valve to keep fuel pressure when the engine is off
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Old 09-17-2013, 02:41 PM   #5
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Quote:
Originally Posted by obidya View Post
Yup that sounds like the regulator

the Fuel Pressure Regulator is mounted on top of the tank, its both your fuel filter and a one way valve to keep fuel pressure when the engine is off
Is it easy to replace
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Old 09-17-2013, 03:10 PM   #6
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Its not TOO terrible, but its no fun. You have to drop the tank to get to it.

There are 7 carriage bolts holding the tank up, and 8 screws holding the filler neck on.

You might be lucky and be able to get away with just removing the 4 bolts just behind the bumper and letting the tank roll down, sometimes it gives you enough room to get to the regulator some skid plates are too stiff to allow it.
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Old 09-17-2013, 03:17 PM   #7
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If you want I can snap a few pics on what your looking for, and give you a run down. Its pretty basic, watch the rear sway bar when putting the tank back up because the back of the skid likes to snag on it.

I've had my tank off twice in the last week for various issues
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Old 09-17-2013, 04:31 PM   #8
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Quote:
Originally Posted by obidya View Post
If you want I can snap a few pics on what your looking for, and give you a run down. Its pretty basic, watch the rear sway bar when putting the tank back up because the back of the skid likes to snag on it.

I've had my tank off twice in the last week for various issues
Yeah i would like that
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Old 09-17-2013, 06:11 PM   #9
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8 screws hold the filler neck in place, 4 holding the ring to the tub and 4 holding the neck to the ring. There may also be a ground wire connecting the filler neck to the tub. It would be inside along the neck.


Rear Skid Bolts
Behind the bumper on the bottom of the frame you will see two brackets with 3 bolts on each

The middle one is the tank strap and you wont need to loosen or remove that, but the two outer on each will allow the back of the tank to fall downwards. Have a jack under it.

This is where you may be able to cheat.
If you can let the tank swing down enough you may be able to reach in and get at the regulator. I was able with my factory skid plate.
note* To keep it from bending up the skid plate too much you may need to loosen the bolts on the inner side of the tank.

Front Skid Bolts
there are two on the drivers side

you can kinda see how the lip of the skid plate sits above the rear sway bar. If you end up dropping it all the way you'll want to hug the rear as much as possible at first to avoid getting it stuck on there.

one on the passengers.

(its getting dark out already so it was kinda hard to get a pic)

To drop the tank completely just pull the nuts off those 7 bolts and it will come straight down. These are carriage bolts and hang down from the frame and a support member. If they are stock they will be rusty and you may want to replace them.

I recommend putting a 2x4 on the top of your floor jack to allow you to slide the tank around and give you the wiggle room you might need.
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Old 12-06-2013, 09:56 AM   #10
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I have been having a similar problem with my 98. Now my Jeep won't start at all. I turn the key, wait a minute or two, then I takes a long time but won't start. Sometimes it happens even after I've been driving. Drives fine, but won't start. The battery is good (yellow top), had the alternator tested and it's good too.

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