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Unread 06-25-2013, 08:23 AM   #1
skogs
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1995 ZJ 
 
Join Date: Jun 2013
Location: Christiansted, St. Croix USVI
Posts: 4
1995 5.2 orvis on an island......

So I bought this zj for $700 when I moved to the virgin islands. Had it for 3 weeks, and it's a pita. Especially since I'm a career mechanic by trade, but couldn't bring certain tools here and I don't have a shop I can use yet. This is my fourth Jeep(tj 4.0, zj 4.0, tj 2.5), but never had a 5.2.

Anyway, when it gets hot it is dying, bogging, seems like it's a common issue. Got codes 13, 14, 24. So map sensor, and tps. Map sensor voltages read correctly from info I googled with vacuum applied. Tps didn't seem to have dead spots, but I have no scope to check the wave form. Quick resistance check in wires show they are ok, but island cars tend to have wiring issues. Also have coolant gauge inop, but there are two sensors so I'm guessing one is gauge and one is ecm(?). Idle air control cleaned, but does not move hardly at all. Has shifting problems which I'm sure(hope) is related to these sensor issues.

So with 223k miles, I feel like I should do all these sensors/valve. Shouldn't the idle valve be able to move full stroke by hand? Map sensors are common for sure, as well as tps. Read about intake manifold issues? But I've seen ecm problems too. Also read about grounds, but they were not where they said, by the oil filter right?

Input would be appreciated since being on an island parts being had is not the easiest.

I don't mind putting a few bucks in "the beast" since I got it so cheap, but before I try to get things here I figured I'd ask you guys. Wish I knew my old profile password too, but don't have the email address anymore. Any ideas on that would be great too lol.

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97 TJ sport-sold 97 ZJ-sold 97 TJ se-sold
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Unread 06-25-2013, 08:44 AM   #2
WhiteOut
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1998 ZJ 
 
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Your IAC is trash now. You can't twist it or push it in and out by hand.
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Unread 06-25-2013, 08:59 AM   #3
dougmorgan99
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1998 ZJ 
 
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Quote:
Originally Posted by WhiteOut View Post
Your IAC is trash now. You can't twist it or push it in and out by hand.
If you twisted it hard trying to move it versus just ever so lightly and stopped because you found out it didnt move, then replace it...

Make sure you use all Mopar sensors in your replacements, you can sub NTK/NGK for the O2 but don't ever use Bosch or anything else. Contact Kolak for the sensors... he usually does a great deal on them and I am sure he can ship them to the islands for you. Good luck.
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Unread 06-25-2013, 09:01 AM   #4
skogs
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I didn't, just cleaned it. I was planning on doing that no matter what after looking at it though. I wasn't going to go any further than cleaning it until I knew what you're it was
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97 TJ sport-sold 97 ZJ-sold 97 TJ se-sold
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Unread 06-25-2013, 09:21 AM   #5
skogs
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Quote:
Originally Posted by dougmorgan99 View Post

If you twisted it hard trying to move it versus just ever so lightly and stopped because you found out it didnt move, then replace it...

Make sure you use all Mopar sensors in your replacements, you can sub NTK/NGK for the O2 but don't ever use Bosch or anything else. Contact Kolak for the sensors... he usually does a great deal on them and I am sure he can ship them to the islands for you. Good luck.
Ok I've seen that name. I was wondering about parts suppliers, I've had issues with the Chrysler minivans and o2 sensors not working because they weren't factory. Thanks
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97 TJ sport-sold 97 ZJ-sold 97 TJ se-sold
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Unread 06-26-2013, 04:20 AM   #6
ZeeJay1997
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Since you're a mechanic you probably know all this stuff, but click the green link below for a list of things to check/do for stalls.
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Unread 06-26-2013, 05:24 AM   #7
skogs
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Quote:
Originally Posted by ZeeJay1997 View Post
Since you're a mechanic you probably know all this stuff, but click the green link below for a list of things to check/do for stalls.
On my phone, can't see link. But if it's a thread on this forum I think I've looked at it. I'm fairly confident in what the problems are, I really just was asking about it in case there is some well known problem that I can't test like the ecm. If you could post the link in a comment I'll take a look thanks
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97 TJ sport-sold 97 ZJ-sold 97 TJ se-sold
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Unread 06-26-2013, 05:09 PM   #8
ZeeJay1997
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http://www.jeepforum.com/forum/f13/1...talls-1407423/
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Unread 10-18-2013, 10:12 AM   #9
skogsm
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Hey thanks for helping this "noob" out. I found my old password for this account, so that noob was me.

Ended up replacing the maf(for a 4.0 after the one I got was bad out the box), tps, iac valve, and both temp sensors. Runs great now, too bad the trans took a dump..... About done with that rebuild though :-)
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