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Old 08-04-2011, 08:54 AM   #1
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More engine problems; Now bad cylinder 1 on 97 wrangler 4 cyl...

After not fixing my cold start problem from a few weeks ago, I now have a much bigger problem; my 97 Wrangler overheated on the highway Saturday (water pump) and after I replaced it Sunday, my check engine light was on and the sound of the idle was just not right. Mechanics computer said misfire on Cylinder 1 and after replacing the spark plugs, distributor cap and rotor, checking injectors and finally compression (non in cyl 1), it was suggested to me that for the cost of replacing that cylinder on a 164K 4 cylinder, I might want to consider a rebuilt (4 cyl or maybe upgrade to 6, which I know would be a much bigger and expensive job) engine or a used one with lower miles from a junk yard... I am sort of out of my element here, am going to need to pay to have this work done, so just curious if anyone else has either had this issue or had advice... The tub and frame are in really good shape for a 97 in Maine... I have $4900 in purchase price, improvements and work done since I bought it a month ago, so I am hesitant to through in the towel on it yet; would like to have it for the long haul...
Thanks
Zeb

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Old 08-04-2011, 10:36 AM   #2
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what was your cold start problem? just wondering

and as far as a engine goes i mean ive heard theres alot of labor in chaning it to a i6 motor. bc the mounts are in diff places. itll fit no problem but its just a matter or movinf things around. if i weere in your situation, (which i kinda am bc i am experiencing engine problems) i would love to switch to a built 350 motor. yes takes the same finangling as the i6 but the end result would be better bang for your buck. just saying

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Old 08-04-2011, 03:59 PM   #3
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IMHO the best thing to do is find out why there is no compression, first..could be as easy as replacing the head gasket or you might need a new piston, rings, bearings, etc...find the problem and that'll give you some indication of which way to go..you can get a rebuilt 4 cyl for around 1200.00 and they're not that hard to change...you can probably rebuild yours for a lot less...and the easiest is to just buy a used motor, around 650.00 and swap them out..
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Old 08-04-2011, 04:05 PM   #4
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jfbilbro has very sound advice if i were you i would follow it.
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Old 08-05-2011, 07:07 AM   #5
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I agree, that's sound advice and what I'll do... Talked to a few local guys yesterday who thought it might not be as bad a fix as I think so that would be great; cant afford a rebuild now anyway!
Thanks
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Old 08-05-2011, 07:12 AM   #6
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The cold start problem (still is) is that it starts right up and idles normal for about a minute, then idles down to 500 rpms and sort of sputters... if you let it warm up for a few minutes, it goes back to 900 and will run fine, but if you need to start it and go, after that 60 sec, it loses power and bucks and chokes, until your put the clutch in and give it gas a few times... Again after 30 sec of that, she's good to go. One guy has told me he had the same issue and replaces one of the O2 sensors and solved the problem, so I am going to try that (if I can get this motor running back on all 4 cyl!)
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Old 08-05-2011, 12:32 PM   #7
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x-3 on advice from jfbilbro. On the other problem, did you check for any codes?? Could be an 02 sensor or air temp sensor...

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