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Post by bcjeep on Apr 20, 2005 23:55:14 GMT -5
I have this problem with the zj.I hope i can get your input.When it is idling or running at an even speed it runs perfect,but when i get on it like pulling out to pass some one or just the other day,i was going up a on ramp,it stalls and acts like it is running out of fuel.It a 318 v8 auto.Any help would be great.thanks, Bryan.
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Post by Busted Knuckle Racing on Apr 21, 2005 8:00:47 GMT -5
the first thing I would do is replace the fuel filter and see if it helps. Plugs and plug wires wouldn't hurt either if you have never changed them.
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Post by rsmith on Apr 21, 2005 8:16:34 GMT -5
I am inclined to think fuel filter or a fuel pump. If it is fuel injected then the fuel pump has to maintain much higher pressures than with a carb. Is there a "Check Engine" light coming on?
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Post by bcjeep on Apr 21, 2005 18:11:34 GMT -5
i had a check engine light before,but that was remedied when i changed the throttle position sensor.i'll change the fuel filter and plugs today,thanks
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Post by rsmith on Apr 21, 2005 22:22:22 GMT -5
Did this problem start right after you replaced the tps switch? If so it could still be cutting out on you. I have bought new parts that have been faulty. If you still have the old one might could switch it out and see if the symptoms are the same.
On a Chevy throttle body unit you can check a TPS with a multimeter, but not sure about Jeep
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Post by jeepchipjones on Apr 22, 2005 3:25:01 GMT -5
Mine did this when I cut my muffler off, I think it had to do something with the O2 sensor not being connected anymore, but I dont know if yours is like mine...
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Post by bcjeep on Apr 23, 2005 15:41:00 GMT -5
:Di've changed the fuel filter and so far it runs great.i haven't given it the full open throttle test yet but i can already tell a differance,thanks guys
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Post by Busted Knuckle Racing on Apr 23, 2005 16:43:02 GMT -5
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Post by danthemanx07 on Jun 15, 2005 11:30:42 GMT -5
I may be a little late on this, i havent been on the site in a while, my zj had the excat same problem as yours a while ago. I ended up replacing the fuel pump to solve the problem. About 270 from napa, and the installation is pretty easy, maybe 2 hours or so. That would be my suggestion.
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Post by bcjeep on Jun 15, 2005 12:13:54 GMT -5
That is my next job to do.Thanks.I do have another problem maybe you have had happen.My front end makes a terrible popping/grinding noise when i apply the throttle a little hard.It reminds me of the gears maybe are slipping over the cogs.Mine is the quadratrac full time 4 wheel drive system.Any help would be great,Thanks BC
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Post by rccolacc on Jun 15, 2005 15:19:44 GMT -5
I've got the quadra-drive I think on my ZJ and it's been nothing but problems. I bought it not working anyway, so I guess I can't complain too bad, but I still think Jeep messed up on the 4x4 systems they put in the grands. I'm in the process now of replacing the full-time transfer case for a part-time one from a Cherokee. Since it will be in 2wd when I'm on the road, I expect better gas mileage and less feedback in the steering wheel on turns. So far I've got $175 or so in the 231 I'm putting in the Jeep, so it's not too expensive to swap. I would be the noise you're hearing from the front end is from the differential itself. Don't they have some sort of hydraulic differential in the quadra-tracs? I wonder if you pull off that differential cover if it would show anything. Do you frequent any other forums? Try going to www.nagca.com/nagca.htm and searching their forums for your problem. I know yours is not unique. Surely someone else has had the problem and knows how to fix it. Hope this helps you out. -RC |
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Post by Busted Knuckle Racing on Jun 15, 2005 17:19:55 GMT -5
Contact Corey (99rockkrawler). He had a popping noise coming from the front end of his zj and I am not sure what he ever figured out.
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