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Unread 06-25-2009, 01:33 PM   #1
dmm219
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98 XJ lost power on mountain, very odd...

I was driving my 98 XJ over some mountains in Wva a couple of weeks ago...at one point, the Jeep really lost power. It would down shift, but even after downshifting, it seemed to be really tired. Usually on any hill, the XJ is really pretty perky, especially when it downshifts.

At the top of the mountain, I pulled over...checked everything out. Nothing was leaking, no dummy lights, nothing was smoking, no smells. I could not find anything wrong. After a couple of minutes, we decided not to risk it and returned the way we came...(being Wva, everything is a mountain)...the problem seemed to disappear entirely on the way home and I haven't had it since.

But I'm a little worried about taking it over the mountains now...any ideas?

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Unread 06-25-2009, 01:34 PM   #2
1984XJ
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How many mileS? mine has 255 and doesnt even hesitate over Big Hills
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Unread 06-25-2009, 01:59 PM   #3
dmm219
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Quote:
Originally Posted by 1984XJ View Post
How many mileS? mine has 255 and doesnt even hesitate over Big Hills
pushing 160k, never towed a day in its life...little worried it might be a tranny issue..
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Unread 06-25-2009, 02:02 PM   #4
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Thinner air. I bet you felt tired then rejuvenated.
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Unread 06-25-2009, 02:37 PM   #5
XJH-007
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Have you ever taken it to the mountains?? And specifically on that road??

Colorado mountains will kick ya down to 1st on the highway on a regular basis....so this sounds normal to me.....

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Unread 06-25-2009, 03:54 PM   #6
Kettles
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Quote:
Originally Posted by XJH-007 View Post
Have you ever taken it to the mountains?? And specifically on that road??

Colorado mountains will kick ya down to 1st on the highway on a regular basis....so this sounds normal to me.....

I have driven through West Virginia (I assume thats what Wva is) in my xj no problem 2.5 weeks ago. The Rockies are much higher than the Appalachians, which are less than 6000 feet just about everywhere. I wouldn't think it would be the air. No ideas though, unless your tank was low and on an incline it didn't get enough fuel or something (i don't know where the pickup is in the tank though)
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perfect depends on how far away you are when you look at it:D
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It's a 4.0 ... as long as there's something in the crank case that isn't coolant I'm sure it will still run forever.
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Unread 06-26-2009, 08:27 AM   #7
dmm219
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hmm...we have drove the Jeep over these mountains many times...this is first time it felt like it was really losing power. It's hard to say since I can't get it to do it again. There are no mountains where I live to test it on. (In Laws live in Wva).

Don't think it was the height of the mountains, but the steep slope (there are back mountain roads and they are very steep).
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Unread 06-26-2009, 08:33 AM   #8
tjjeepwrench978
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pluged junk cat shifting back when it does it restricts, or junk clogged
fuel filter sock under the pummp
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Unread 06-26-2009, 09:48 AM   #9
COLOUXJ
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Quote:
Originally Posted by XJH-007 View Post
Have you ever taken it to the mountains?? And specifically on that road??

Colorado mountains will kick ya down to 1st on the highway on a regular basis....so this sounds normal to me.....

i have never had any problems going through the colorado mountains, 7% on Eisenhower and i went up the whole way doing 70 i was quite proud of that, where did you drive to have it go into first?
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is it a plink plink kerrrrdunk? or more of a brrrrrconk doc doc miiiidge pang!!!? or is it a badonk ka donk? if it is the latter its just the normal fat *** of the JK

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Unread 06-26-2009, 12:25 PM   #10
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did you go over rt 33 into wva, or rt 70 thru maryland? i know mount negro(actual name no lie, means black in spanish) thru the cumberland gap is up there in height, but i dont think it should cause the engine to stall out/lose power. i was wheeling in harrisonburg last weekend and had no issues going up rt33 and meadow knob trail(4,ooo some odd feet). hell i even had my ac on and was running cooler and better then most of the other rigs in our group.
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Unread 06-26-2009, 12:51 PM   #11
Kettles
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I think that it is probably something to do with the angle, not the elevation. As I stated earlier, the Appalachians are fairly low mountains, with the highest point being like 6600 ft or something. I suggested maybe it was the gas shifting and running on fumes, which would rob power. I seriously doubt that elevation, pressure, and air density would have anything to do with it, given the circumstances.
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Quote:
Originally Posted by speedbucket View Post
perfect depends on how far away you are when you look at it:D
Quote:
Originally Posted by Millermagic View Post
It's a 4.0 ... as long as there's something in the crank case that isn't coolant I'm sure it will still run forever.
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