BIG TROUBLE with the little JEEP!! - JeepForum.com

 
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post #1 of 6 Old 03-05-2004, 02:38 PM Thread Starter
Dembones
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BIG TROUBLE with the little JEEP!!

It all started sometime in december when I went out for some muddin' and I found this innocent-looking stretch of ice. I've run through it before but it was shallower and only water. This time I floored it to get a good start and made it about 1/3 of the way without breaking through. When it did I was too suprized to watch the tach, but my friend said it reached 7500 Well I knew that was the time to stop so I backed up and let it sit for a minute running. It's been doing fine ever since but when I turn it off I hear a tickticktick that slowly dies away, which I think may be a mis-seated valve releasing compression.
*the problem*
Just yesterday the check engine light came on. It's done this before so I opened the hood, checked everything real good and went on my merry little way. Just today I was going uphill in 5th gear pulling about 2.6K revs when the engine sputtered big time. I put it in 4th and the same thing happened . I quickly turned off the highway and took it slow all the way home. Nothing happened until I just pulled onto my street. I heard a loud knocking when I slowed down to turn which continued until I put it into reverse. The whole Jeep shook and it knocked REAL loud so I turned it off and coasted into my spot . This was 15 minutes ago and I'm still too scared to try to start it and diagnose further. PLEASE HELP ME!! I'M ALREADY HAVING WITHDRAWLS!!


Blue '94 Wrangler, 2.5L: Under monsterization
37" Claws/teralow/HPD44/Trussed HI9/5:38s/detroits/SOA, shackle reversal on rebuilt waggy and XJ springs.
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post #2 of 6 Old 03-05-2004, 04:19 PM
Devious
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The last time my Jeep made a sound similar to that, I had a valve come in contact with a piston

Have you checked the oil lately?

Life is tough enough already, but it's even tougher when you're stupid
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post #3 of 6 Old 03-05-2004, 04:40 PM Thread Starter
Dembones
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Ah crap, that would suck! What happened to the valve/piston? I checked all the fluids and they're full, clean, & relatively new. Oh yes and I know for a fact that I have at least a half tank of gas, if that has anything to do with it.

Blue '94 Wrangler, 2.5L: Under monsterization
37" Claws/teralow/HPD44/Trussed HI9/5:38s/detroits/SOA, shackle reversal on rebuilt waggy and XJ springs.
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post #4 of 6 Old 03-05-2004, 07:12 PM
sentinal02
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Quote:
Originally Posted by Dembones
Ah crap, that would suck! What happened to the valve/piston? I checked all the fluids and they're full, clean, & relatively new. Oh yes and I know for a fact that I have at least a half tank of gas, if that has anything to do with it.
run the diagnostic codes to find out why the check engine light came on. after that, pull the plugs and turn the engine by hand while watching the pistons move. look for shiny metal parts, scored heads etc. verify that each piston is actually moving smoothly. let us know what the light told you.

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post #5 of 6 Old 03-06-2004, 09:41 AM Thread Starter
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I found the (or A) problem! Last night I called a couple friends over and one of them shook the fan and it wobbled quite a bit Looking around the fan housing (water pump) we saw that the fan pulley was digging into the metal! We tore it down and removed the pump. The pump impeller would barely turn and made grinding sounds when it did. I got a new water pump and things are running smoothly, not to mention the engine sounding healthier than it has all winter. It idles with no problems now, I haven't had time to drive it much yet so we'll see how lucky I really am. I guess the bering siezed on the highway and that stalled the engine, and the knocking I heard was the pulley smacking against the water pump. Now the only problem I can see in there is the idler pulley where the power steering is on some models is running on another fried bering. I'm probably taking it for a spin this afternoon so wish me luck

Blue '94 Wrangler, 2.5L: Under monsterization
37" Claws/teralow/HPD44/Trussed HI9/5:38s/detroits/SOA, shackle reversal on rebuilt waggy and XJ springs.
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post #6 of 6 Old 03-06-2004, 09:46 AM Thread Starter
Dembones
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Quote:
Originally Posted by sentinal02
run the diagnostic codes to find out why the check engine light came on. after that, pull the plugs and turn the engine by hand while watching the pistons move. look for shiny metal parts, scored heads etc. verify that each piston is actually moving smoothly. let us know what the light told you.
I had tried the diagnostic codes earlier and they appeared not to be working (does this sound like cruel irony to anyone else ). Anyways the check engine light only comes on periodically and then only when it's warmed up and usually only when it's cold outside. The last time it came on and went away was last December so maybe it's a seasonal thing. The O2 sensor is stock and I don't have a cat. convertor so I'm guessing this is the problem. If they weren't like $50 I'd just replace it and see. I got some pics of the fried waterpump:

As you can see there was quite a bit of play in the pulley...

Blue '94 Wrangler, 2.5L: Under monsterization
37" Claws/teralow/HPD44/Trussed HI9/5:38s/detroits/SOA, shackle reversal on rebuilt waggy and XJ springs.
Blue Jeep Club member 2
Much more info here

Last edited by Dembones; 03-06-2004 at 04:59 PM.
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