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Old 01-09-2017, 04:11 AM   #1
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Question Air Hose ???

95 2.5

On friday it was 1-3*deg in the morning went to turn it on and it only turn half way it was tough took me two times to get to fully turn on, took my son to school about 4 miles away came home everything seemed fine.Four hours later went to the store 4 min a way it started to feel slugish it would feel like it was running out of gas.It would slow down then seed up made it to the store thought it was going to cut out . Parked came out it wouldn't start got help from friend to push it to the gas station it had a quarter tank so top it off started.Headed home then all of sudden i started to here like the sound of an air hose under the jeep. I pulled over noise stoped took off noise started back up , drove it about half hour more would not go away . I can do basic Haynes manuel fixes,tune-ups stuff. Need help to get headed in right direction to tackel this.
Thanks in advance
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Old 01-09-2017, 06:34 AM   #2
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Need more clarity and information.

So you're getting a power loss, hard start, and a noise that sounds like an air leak under the Jeep? Sounds like a fuel line is busted.

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Old 01-09-2017, 12:39 PM   #3
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In addition to your basic Haynes manual, you should have a Factory Service Manual. See above in MMs signature for a link to several.

Start with a can or two of dry gas in your tank. Probably won't make any difference, but you mention 1-3* in the AM and hard starting, sluggish performance and wanting to cut out. Those are symptoms of frozen water (sometimes called ice) in the fuel line. The dry gas will mix with the water once it thaws and carry it through to the exhaust.

As far as the air hose noise under the Jeep, if you don't have a garage (a heated garage is pretty nifty) you can lay a piece of cardboard on the ground and dress warmly in your old clothes. Climb under the Jeep and listen for where the noise is coming from. If, as MM contemplates, you have a busted fuel line don't be smoking while you search for the noise.
Let us know what you find.

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Old 01-09-2017, 03:23 PM   #4
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Maybe your cat is starting to plug up
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Old 01-09-2017, 10:04 PM   #5
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Quote:
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Maybe your cat is starting to plug up
That what i was thinking also! Did you look under the hood? Was it running Hot from a Frozen Radiator?
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Old 01-09-2017, 11:25 PM   #6
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ok mudmagnet that is exactly what it was doing but didnt see any fuel leaking from underneath.Made some space and put her in the garage now today it started right up.
I drove her around and no noise at all.Havent had time to look under hood or under the jeep , i know with out any info from those places it would be hard to guess what happened any thoughts ???
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Old 01-10-2017, 09:47 AM   #7
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One test for a plugged cat is to remove the O2 sensor. If it runs fine, you have restricted exhaust.
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Old 01-10-2017, 09:53 AM   #8
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Quote:
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Maybe your cat is starting to plug up
My thought as well.
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Old 01-11-2017, 02:16 AM   #9
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I replaced the whole exhaust system in march.If that is the problem how do you think something like would happen.Haven't had time to check the sensor but will do tomarrow.
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Old 01-11-2017, 06:42 AM   #10
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Very doubtful with new exhaust. Modern cats tend to be better. But new exhaust means the sensor should come out easy. Usually I have to cut the wires and put a 7/8" deep socket over it. You could do this with a wrench, if you don't have a sensor socket.

More than likely a fuel vapor leak or intake leak. I'm surprised you don't smell gas, even if you had a bad sense of smell it's a pretty pungent odor. Try to find exactly where it's coming from.
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Old 01-12-2017, 05:56 PM   #11
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Yea did smell gas before all this happened dismissed it because it went away.When this happened now i thought it smelld because it was running out of gas.Whats a fuel vapor leak or an intake leak where should i look around for those? I will look at the FSM on my own, it would great if you guys point me towards the right direction.So i can get an idea where to start looking thanks .
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Old 01-12-2017, 06:08 PM   #12
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Look at the frame at the left rear wheel well (unless you have any fender liners in place). You should see some lines running along the frame. There are two brake lines. One goes to the rear wheels, the other is actually a fuel tank vent.

This vent goes along the frame from two rollover valves on the fuel tank to the vapor canister under the hood. This canister is near the coolant bottle.
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1990 Yamaha TW200.

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Old 01-14-2017, 07:30 PM   #13
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The smell is coming from that area,I was looking in the FSM and i think it's the Pressure Relief- Rollover Valve I think thats what you were saying? So if it is from what I see its on the side of the tank,so would i be able to get to it with out having to drop the tank?
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Old 01-14-2017, 11:59 PM   #14
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Nope. Tank has to come out. Buy two new valves, grommets, and new hose for the vent. May need new skid plate bolts. Good time for quality Bosch fuel pump and/or soft rubber lines.
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1990 Yamaha TW200.

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Old 01-17-2017, 03:43 AM   #15
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As for gettig a fuel pump a buddy of mine installed one for me about 5yrs ago, he is good mech he has work on truck jeeps so i've seen his work before So what he did insted of dropping the tank he cut a hole from the top and was able to get it from there I installed it, he came back next day and welded it no changeing of lines or any thing else, so maybe that has some to with it, since then my fuel gage does work right. probably has some thing to do with all this?
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Old 01-17-2017, 08:36 AM   #16
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I doubt it. But that's definitely an incredibly stupid thing to do. Cutting and welding on a fuel tank!?!? I remove mine to weld NEAR it, much less welding a plate that's literally on the tank. He probably spent more time fabricating than he would by just dropping the tank.

I definitely would advise against doing that again. A family shop in my area closed down because the son was welding a frame near a fuel tank. Spatter hit a vapor leak and he burst into flames immediately. The father closed the doors the next day and sold everything inside, since he couldn't bear to go in there again.
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1990 Yamaha TW200.

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Old 01-20-2017, 01:15 AM   #17
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so should i get a new fuel pump ? That 5yr old should still be ok right like i said the fuel gage is out of wack it reads empty then it up 3/4 of tank so i figured a way it safe to refuel at round 240 miles to be safe.Any thoughts?
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Old 01-20-2017, 07:04 AM   #18
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It depends on the pump. Some cheap pumps only last a few years. Good ones last awhile. If you have a good one, I say leave it. If Mr. Welder dropped in a Saturday special, you should put in a Bosch.

Judging by how much he didn't want to drop the tank, I'm sure he used a quality part.
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1990 Yamaha TW200.

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Old 01-20-2017, 09:17 AM   #19
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so did you isolate where the air noise is coming from? Is it coming from the tank area?
If so you could possibly have a hole in your fuel tank if it was welded on like you say.

I would hope he the welder put some fiberglass or body armor or something between bed of jeep and fuel tank but if not and you have the plastic tank you probably have a whole in it.

Regardless I would drop tank look at rollover valve replacement and hose replacement and while you are at it drop in a new sending unit.

Also look over the fuel tank very well is a great time to do the fuel tank upgrade if you still have not done that you can cut the hose while you are changing the sending unit

Chief

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