98 Laredo Build Thread "Yumekui" - Page 2 - JeepForum.com
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post #16 of 31 Old 08-03-2013, 08:00 PM Thread Starter
CanaanTSA5
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1998 ZJ 
 
Join Date: Feb 2013
Location: Manchester
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Quote:
Originally Posted by Myusername1674 View Post
Looks like a good Jeep! I don't personally like the tan, but it might be okay. I think they do sell tan bedlining, or so I've heard.
Yeah, she's in good shape. I really want to paint the whole think matte tan like a humvee. But the cladding will do for now. Thanks for the tip!


1998 ZJ 4.0 Stock 225/75R15 General Grabber AT2
191,000mi
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post #17 of 31 Old 09-23-2013, 11:20 AM Thread Starter
CanaanTSA5
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So recently my 98 has had a tough time starting. Not all the time, about 75% of the time. 25% of the time it starts right up perfectly; the other 75% of the time it cranks from anywhere from 4 to up to 18 times before it reluctantly starts. When it does finally start, it's a really rough start. Engine is very rough for a while. I've gotten in the habit of letting run for a minute or so after that and just restarting it. Always starts just fine the second time.

The other thing is that it's been acting very sluggish lately. Like I have a lack of power. It takes a lot more to get up a hill than it use to.

I am going to be cleaning the IAC tonight, as I haven't done that yet. I will be changing the oil next week as well when my Tune-Up kit comes in.


Any thoughts? I'm still learning here, so any input is appreciated.

1998 ZJ 4.0 Stock 225/75R15 General Grabber AT2
191,000mi
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post #18 of 31 Old 09-23-2013, 01:50 PM
chaZJones
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sounds like fuel pump issue

96 ZJ 5.2L 156k
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post #19 of 31 Old 09-23-2013, 02:01 PM
bigchieftaco
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My ZJ did something like that when it was going out. It would start hard every time. I replaced the plugs, wires, distributor cap, and rotor but still did it.
Replaced the fuel pump and starts perfect every time.
I'd check the fuel rail Schrader valve. Give the engine a couple cranks but don't start it. Push in the valve and see if there is any fuel in it. If its all air, your pump is probably out. That's how mine was anyway.
Otherwise, if you have a pressure gauge, it should read 38-45 psi on the rail if I remember correctly.
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post #20 of 31 Old 09-23-2013, 03:21 PM Thread Starter
CanaanTSA5
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Quote:
Originally Posted by bigchieftaco View Post
My ZJ did something like that when it was going out. It would start hard every time. I replaced the plugs, wires, distributor cap, and rotor but still did it.
Replaced the fuel pump and starts perfect every time.
I'd check the fuel rail Schrader valve. Give the engine a couple cranks but don't start it. Push in the valve and see if there is any fuel in it. If its all air, your pump is probably out. That's how mine was anyway.
Otherwise, if you have a pressure gauge, it should read 38-45 psi on the rail if I remember correctly.
The pump is what I was thinking as well. I will try that an see how it goes. Thanks.

1998 ZJ 4.0 Stock 225/75R15 General Grabber AT2
191,000mi
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post #21 of 31 Old 09-23-2013, 09:00 PM Thread Starter
CanaanTSA5
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So I cleaned the IAC, idles better. That bottom screw is a b**** to get to..

1998 ZJ 4.0 Stock 225/75R15 General Grabber AT2
191,000mi
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post #22 of 31 Old 09-26-2013, 02:32 PM
Myusername1674
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Quote:
Originally Posted by CanaanTSA5 View Post
So I cleaned the IAC, idles better. That bottom screw is a b**** to get to..
Yeah it really is!

Finally got it started! Stupid battery!

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95 FiveTwo ZJ, DD, Lifted, Locked on 35s,
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post #23 of 31 Old 09-26-2013, 08:46 PM Thread Starter
CanaanTSA5
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Originally Posted by Myusername1674 View Post
Yeah it really is!

Finally got it started! Stupid battery!
I'm glad that I am not the only one who thought so, lol. I was standing there going, "Why the f*** wouldn't they just tilt this thing 90 so that the screws are sides?". Oh well, done and done.

- - - -

Got my Crown Tune-Up Kit in the mail today. Gonna do it up on Monday as a demonstration in Automotive Class for those students who have never really worked in a engine bay before.

As an oil change is a part of it, I had a question regarding oil. At what point should you start using High Mileage Oil? I'm at 173,705 miles.

1998 ZJ 4.0 Stock 225/75R15 General Grabber AT2
191,000mi
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post #24 of 31 Old 09-27-2013, 04:05 PM
Myusername1674
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Quote:
Originally Posted by Myusername1674 View Post

Yeah it really is!

Finally got it started! Stupid battery!

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Hahahaha i just noticed, somehow when i posted this comment the other day i must have thought i was in the 'whatd you do to your zj' thread! oops.

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95 FiveTwo ZJ, DD, Lifted, Locked on 35s,
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post #25 of 31 Old 09-27-2013, 10:51 PM
chaZJones
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Quote:
Originally Posted by CanaanTSA5 View Post

As an oil change is a part of it, I had a question regarding oil. At what point should you start using High Mileage Oil? I'm at 173,705 miles.
from what I understand the only difference in high mileage oil is an additive that causes seals to swell slightly to help prevent leaks. so it depends on if you have leaks or want to spend the extra money for it. I wouldnt

96 ZJ 5.2L 156k
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post #26 of 31 Old 09-28-2013, 03:56 PM
dusterdude
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100,000 miles ago
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post #27 of 31 Old 10-01-2013, 11:32 AM Thread Starter
CanaanTSA5
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Going to attempt to find my vacuum leak tonight at school with the smoke machine we apparently have. As for oil, decided to go with High Mileage since I'm at 174k and steadily rising, and 5W-30 since it's winter here. I usually run 10W-30 in the summer like probably a lot of you do as well. I am desperately hoping to find this leak, because I am not a fan of having no heat through my dash in the winter...We will see what happens.

1998 ZJ 4.0 Stock 225/75R15 General Grabber AT2
191,000mi
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post #28 of 31 Old 10-01-2013, 08:10 PM Thread Starter
CanaanTSA5
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So it turns out I have (had) two vacuum leaks. One was just a hose, I patched that one up so now the vents work again. The other is coming from the TB. That one will take some investigating.

1998 ZJ 4.0 Stock 225/75R15 General Grabber AT2
191,000mi
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post #29 of 31 Old 10-11-2013, 06:45 PM Thread Starter
CanaanTSA5
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Replaced my Fuel Module today. Wasn't ridiculously complicated, but was a pain to do in the driveway. Jeep has the pep back in it's step again. Now I just need to address a new IAC and possible wheel bearings (And eventually new rocker panels)

1998 ZJ 4.0 Stock 225/75R15 General Grabber AT2
191,000mi
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post #30 of 31 Old 10-12-2013, 04:12 PM Thread Starter
CanaanTSA5
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I was driving home from work today and check engine came on, so I stopped by Autozone to grab the code (P0455). Large leak detected in EVAP system.

I just replaced the fuel module yesterday, and a few things we not a prime experience on doing that. For one, the pipes from the gas cap to the hoses for the tank rusted out and ended up getting stuck in the hoses to the tank. Had to pull them out with pliers, about an inch of it was stuck in the hoses. When I put it all back together I just stuck the remaining good pipe back into the cleaned out hoses. I clamped them on as good as I could, but the clamps were pretty rusted too. Is that most likely the cause for the code? My EVAP hose coming from the tank?

The only other thing I can think of is that in order to get the gas out of the tank, I poured it out through the EVAP hose, not the gas hose from the tank. The gas hose was too wide to pour into my gas cans, and I did not have a funnel. Was that a bad thing to do...? -.-

Thoughts? I'm pretty low on cash, and I am due for inspection soon, so any idea are welcome..!

1998 ZJ 4.0 Stock 225/75R15 General Grabber AT2
191,000mi
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