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Unread 06-20-2012, 10:08 AM   #1
Kevinyj95
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new here just bought a 95 wrangler yj rio grande

Its got the 2.5 4cyl and its a automatic. 4 wheel drive works. Thats about what I know about it....... Engine has a knock. It goes away when I put the car in drive or apply the gas?????? Oil pressure only goes to about a quarter on the gauge. yes Im planning on a oil pump. I have plans to go through this entire jeep. It has 120k. Now the knock a lifter maybe??? The other thing is when I shift into drive and have the brake applied she stalls sometimes or trys too. Im not use to these automatic transmissions. My last wrangler had a 5 speed. I loved it. This automatic shifts hard it feels like it goes from first to third. Opinions??? I also require a front drivers fender. The frame is perfect. No rust at all. Thats why I got it. I plan on tearing this thing down to nothing and rebuilding it the way I like it. Any help with the current issues and tips for the future would be appreciated. Thank you

sam_6049.jpg   sam_6050.jpg   sam_6051.jpg   sam_6052.jpg  
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Unread 06-20-2012, 10:16 AM   #2
Rproject
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Very nice. It'll be interesting to see what you do it over time. :-)
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Unread 06-20-2012, 11:19 AM   #3
Que89YJ
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Welcome to the forum! Here is a good place to start with the stall:

http://www.jeepforum.com/forum/f12/h...codes-1257145/

Isolate down the knock to upper or lower engine. You can find it easier by using an extension or a small PVC tube and put it to your ear.
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Unread 06-20-2012, 03:15 PM   #4
Kevinyj95
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Hmm I got a 12 33 55. 55 in my zj means end. but the link doesnt have a 12 or 33
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Unread 06-20-2012, 03:24 PM   #5
Kevinyj95
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ok so 33 is an a/c I dont have. 12 is recent battery disconnect. 55 is end of codes. From what I have researched. So Im all good in the eyes of the comp. Thanks for the help guys. Im going to go try to pinpoint the knock. I will post when I find it.
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Unread 06-20-2012, 03:48 PM   #6
Kevinyj95
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Okay sounds like the noise is coming from the top near one of the exhaust valves in the head. Im not sure if its echoing but I can hear it in the oil pan as well. What are the possibility's? I only want to tear apart this engine once. I had planned on the lifters. although Im going to check the push rods and springs while im in there. But im kind of worried because like I said the oil pressure is pretty low. I wonder how long it was driven like that. The oil is fresh so I cant tell anything by looking at the oil. clear exhaust though.
It was so hard to pinpoint the noise because the engine is so tiny.
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Unread 06-20-2012, 04:33 PM   #7
SimplyTron
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Is the noise coming more from the front or rear of the engine? If it comes from the front then to me it sounds like you're describing a stretched/worn out timing chain. Especially since it goes away when you throttle up.
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Unread 06-20-2012, 06:14 PM   #8
Kevinyj95
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Heres a video of the knock.
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Unread 06-20-2012, 06:18 PM   #9
Kevinyj95
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And another from under the jeep http://www.youtube.com/watch?v=fEG0U...ature=youtu.be
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Unread 06-20-2012, 06:33 PM   #10
Que89YJ
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I can hear the rocker noise. But the other noise sounds way too deep to be from the rockers/valves. I am not sure.
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Unread 06-20-2012, 06:40 PM   #11
superj
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and i would check for a vacuum line cracked or broken for hte dying when you put it in gear. might be something as simple as that

minus the fender issue, nice looking jeep
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Unread 06-20-2012, 07:39 PM   #12
Kevinyj95
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Well the dying when put into drive feels a lot like when your in a five speed and you try to take off without the gas on the pedal. That and the taking a Hugh amount of time to shift from first with a hard kick and whining. Im guessing transmission and or torque converter. But that knock I cant seem to decide on. I was thinking lifter or timing chain but your right it is deep. Its so hard to pinpoint like I said above because im use to v8s and this thing is tiny. Thanks again
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Unread 06-20-2012, 07:39 PM   #13
Kevinyj95
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Lol foot on the gas*
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Unread 06-20-2012, 07:40 PM   #14
Kevinyj95
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Well or stopping in gear
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Unread 06-20-2012, 08:46 PM   #15
XOFMOT
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My friends 95 Auto did the same. Felt like it missed second gear and would stall engine right out when put in gear and foot on brake...He just droped the pan and changed oil and filter...ran great after that for the past 3 years!!

Welcome to the Forum!!!

Here's my 95 RIO GRANDE 4cyl Auto!

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