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#1053 of 1888 1997 Jeep Wrangler 2.5L [rnkryan]
Oct 04, 2007 (12:18 pm)
Ok, update time. I tried the O2 sensor and that wasn't it. Here's what else I'm now noticing. When I first start it up(cold) I can hear the fuel pump kick on. But right after it stalls about ten minutes into driving, when I turn the key I don't hear the pump. Not even laying right under the tank. I just hear it bubble a little. Once I let it sit for about 20 minutes, when I turn the key, I can hear the pump like normal again.
So I know the the fuel system is a pressure system, and if it drops below a certain pressure, the pump shuts down. But what if it goes above a certain pressure? Like a half clogged fuel filter? Is the fuel filter inside the tank? Just a thought that I figured I'd throw out there before I go dropping my tank... Thanks for all the help.
#1054 of 1888 1997 Jeep Wrangler 2.5L
Oct 04, 2007 (1:58 pm)
Ok, another update, and this one narrows it down I think. I drove until my Jeep started to stumble again (about 10 minutes). Without letting it die completely, I just got out and hit the bottom of my tank a few good times with a rubber hammer. Then I got back in and it ran fine for another 30 minutes... just like that. It did it again, and I repeated hitting the gas tank, and it ran fine again all the way home. Does this mean that my fuel pump is going bad? or is it something else? Thanks.
#1055 of 1888 Re: 1997 Jeep Wrangler 2.5L [rryanjr]
Oct 04, 2007 (3:53 pm)
Just a thought but on my old Mercury Mystique there was a "sock" in the fuel tank on the end of the fuel delivery tube to the internal fuel pump. I never had a problem with it but other owners reported that the sock could get clogged and cause intermittent problems.
It sounds like you are breaking loose some debris in the tank when you hit it with a hammer and then it eventually settles back down and clogs the fuel line.
Now that I think about it, I had an old '72 Impala many years ago that would run for a while and then stop. I replaced the inline fuel filter but it still acted up. The repair shop eventually pulled the tank and boiled it out because they discovered leaves and other things clogging the sock in the tank.
#1056 of 1888 Re: 1997 Jeep Wrangler 2.5L [tedebear]
Oct 06, 2007 (10:40 am)
Ok, I dropped the tank and opened her up, and she was as clean as new. I have a lift in my garage so I've been able to inspect everything, and as far as I can tell, there are no leaks and no kinks anywhere in the system. I don't smell any gas in the engine campartment either, so I don't think that my injectors are leaking. Since banging on the bottom of the tank fixes it temporarily I can only conclude that my pump is going bad and a quick jolt is kicking it back on. But I'm not really a fuel system expert, so.... any other suggestions?
#1057 of 1888 Re: 1997 Jeep Wrangler 2.5L [rryanjr]
Oct 08, 2007 (7:50 am)
This same thing happened to my 97 Jeep Wrangler about 5 years ago. I did not have anywhere to work on it at the time so I sent it to a shop. I had the Fuel Pump and filter replaced and it worked fine (another 60K miles) until last week. It just started doing it again. I am not sure which one caused it- I wish I was because I am going to do it myself this time and I would rather just have to buy and replace a filter than both.
#1058 of 1888 Rear end noise 2000 Wrangler Sport
Oct 13, 2007 (4:59 pm)
Hi, new to this forum. I have a 2000 Wrangler Sport. It is a great vehicle and is lots of fun. However it has been making a growling noise from the rear end when I turn a corner. It only does this after driving for a while on the highway. It does have the factory limited slip rear end. Has anybody run across this problem!
#1059 of 1888 Re: Rear end noise 2000 Wrangler Sport [wyowrangler]
Oct 13, 2007 (5:41 pm)
How many miles? Last time the lube was changed in the rear end? This should have been done at 36k and 96k or any time you might have gotten water in the diffs.
Might Just be a little Muddy Waters...
...dem tigers growl.
#1060 of 1888 Re: Rear end noise 2000 Wrangler Sport [wyowrangler]
Oct 14, 2007 (4:52 am)
And if they did change the differentials, did they add the special limited slip additive in with the fresh fluid?
First thing, of course, is to crawl under your Jeep and check the differential to see if it's full of fluid.
#1061 of 1888 Re: Oil pump [edalex]
Oct 14, 2007 (10:00 am)
hey, did you ever sort out the problem with the low oil pressure -- i have the same problem at the moment.