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Topic Review (Newest First)
08-16-2014 04:03 PM
josi1089 @ spigle21

If you read through this thread there's a list posted by JenkinsJeep95 that's helpful. His number 1. Vaccuum hose was the main culprit for my rough idle and having the engine turn off periodically.

The two other maintenance issued I tackled were taking the throttle body off and cleaning it and cleaning or replacing the ICM which is connected to your throttle body.

Hope this helps and re-reply with updates to help the next guy out. Thanks!
08-13-2014 08:53 AM
Bullethead I posted in too many to keep track of but my issue was resolved. There was 1 (as in singular) bolt holding my exhaust manifold to the engine. Had my buddy's shop rethread (tap) the holes and bolt it all back together, plus a new gasket.
Old boy's never run better.
08-12-2014 06:19 AM
spigle21 I have a 1994 jeep wrangler that I am having issues with. I replaced the head gasket, water pump, thermostat, plugs, plug wires, distributer cap and rotor button and it is still running rough. Dont really have any power and the idle drops so low that it will cut off and the oil pressure maxes out on the gage. Can someone please give me some advice cause I am all out of ideals.
06-04-2014 07:00 AM
Bullethead I think I've found the part. Part #1 Below.

My only worry is why is Part #4 a separate part? As it sits right now in my engine these two pieces do not connect. I thought that was the problem, was this actually how it was designed?
06-03-2014 06:25 AM
Bullethead
Quote:
Originally Posted by Shawboi_andy View Post
I just went to the local mechanic shop and they ordered that same part for my 95 2.5 4 cyl. It was like $20
Thats great news. Thank you for the update. I'd love to find a site I can snag it myself on but a part is a part so long as I get it on the jeep!
06-02-2014 08:06 PM
Shawboi_andy
Quote:
Originally Posted by Bullethead View Post
Thank you for posting that picture of your engine. This goes out to everyone, but does anyone know where I can find a replacement line for the Front CCV tubing? Here is what mine currently looks like... And here is my thread on the matter. http://www.wranglerforum.com/f210/je...-714977-2.html I have not been able to track down the tubing online, I will check with the parts store this afternoon however.
I just went to the local mechanic shop and they ordered that same part for my 95 2.5 4 cyl. It was like $20
06-02-2014 08:32 AM
Bullethead Thank you for posting that picture of your engine. This goes out to everyone, but does anyone know where I can find a replacement line for the Front CCV tubing? Here is what mine currently looks like...



And here is my thread on the matter. http://www.wranglerforum.com/f210/je...-714977-2.html

I have not been able to track down the tubing online, I will check with the parts store this afternoon however.
05-08-2013 10:30 PM
swamp dog Lucas is snake oil
05-02-2013 12:19 PM
matrix311
Quote:
Originally Posted by josi1089 View Post
this post is for jibber. sorry it's 9 months (too late), but the culprit was the vacuum hose. mechanics also found out my intake had a hole so replaced that too.
Did they say which vac line it was by chance?
12-20-2012 07:31 AM
jibber
Quote:
Originally Posted by josi1089 View Post
this post is for jibber. sorry it's 9 months (too late), but the culprit was the vacuum hose. mechanics also found out my intake had a hole so replaced that too.

Thank You!! I actually sold my YJ. I miss it, but don't miss trying to fix all of the annoying little things.

Jibber
12-18-2012 11:19 PM
josi1089 this post is for jibber. sorry it's 9 months (too late), but the culprit was the vacuum hose. mechanics also found out my intake had a hole so replaced that too.
03-01-2012 03:12 PM
jibber Bump. Any Update????
01-28-2012 09:51 PM
jibber Any Update?
01-03-2011 01:30 PM
omniscientgregg
Quote:
Originally Posted by falatude View Post
+1
Lucas is good stuff.
+2
I put in a bottle every 2000 miles.
01-02-2011 03:30 PM
pReDiTuR Josi1089 I definitely appreciate the picture and help, hope you get your Jeep up and running soon.
01-01-2011 10:15 PM
josi1089 awesome feedback gentlemen (and ladies, if any)... will update with outcome. thanks and happy new year!!! may it bring your jeeps a trouble free ride.
12-31-2010 11:23 PM
chensley Most of all that timing jargon is controlled by the computer. However, do not forget the basics....fuel, air, and spark. If all those check out then your left with just a few "minor" things..such as grounds,shorts,wife,and the depths of your pocket (hoover flag anyone!?)
12-31-2010 05:01 PM
sevenservices Did you or do you have any blackness coming out of the front connection where your exhaust goes into the catalitic convertor? Just a thought... On mine, my cat was plugged up bad. Major loss of HP plus when I would accelerate I could hear a "ffffft" sound under there. If your not getting enough air flow throught it, it could cause an issue like yours. Again, just speculation as most of our thoughts at this point!
12-31-2010 04:43 PM
Garyk In re-reading your original post you mentioned a new manifold. Maybe the gasket is leaking. With engine warmed up and idling, spray carb cleaner along intake manifold gasket mating surfaces, base of throttle body etc,vacuum connections... listen for change in engine idle....could be a slight vacuum leak..
also check the power brake assist for leaks.
12-31-2010 02:35 PM
sevenservices did it start doing this "all of a sudden?"

a lot of times its moisture or a little bit of water in the fuel system. Did you run a full tank through it since the fuel injector cleaner? To rule this out, with a full tank of gas it should not idle rough. If it still does after a fill up, then its not water in the gas.

Three things an engine needs to run smooth. Gas, air and spark. One of them is either getting to much or not enough. Check for air restrictions, nests in the intake system, clogged air filter, wet air filter, oily air filter, gas leaks, etc... you already confirmed good spark so its got to be air or fuel related.
12-31-2010 02:16 PM
JenkinsJeep95
Quote:
Originally Posted by josi1089 View Post
@ garyk, i haven't ran a legit cleaner through the injectors... just poured in the stp fuel injector solution during regular trips to the gas station.
@ 60 mg, no light.
@ jenkins, your suggestions are money. do you have a shop in socal (orange county) by chance??? and on which fixes would you allow a novice to diy? and which ones should i take to a shop?
No I'm afraid I'm on the other side of the country in SC.

However half the fun of owning a Jeep is doing the work yourself, learning and sharing your experiences. That being said I recommend anyone willing to get their hands dirty and DIY. You should be able to go to your parts store and buy a manual such as Chilton or Haynes and it can help walk you through everything I listed.

But if its a daily driver and time is an issue then I suggest trying these first: 1,3, and 10. They are all quick and cheap to check and fix. Also you might want to replace the oxygen sensor. If its old and not giving good readings to your computer then your air/fuel mixture could be off.

If that doesn't work move on to: 2,4,7,and 9. These either take a little more cash, or time to do, but you shouldn't have much trouble with it.

If none of that works and your still worried about how your Jeep is running then you can dive deeper in the rabbit hole, or take it to a shop.
12-30-2010 12:11 PM
Garyk
Quote:
Originally Posted by josi1089 View Post
yo preditur... sorry it took long to post this, but below is pic of my engine. like i said the community can judge on whether i got this right. according to jgwalt i do not have a ccv. but to answer your question i pulled off the hose from the brass valve (i think this is my pcv) and unscrewed it to clean it. hope this helps. for the community, if i am wrong please feel free to correct my ignorance.
That is a picture of a CCV. The rear line goes to air cleaner and front line goes to special orifice at manifold. Make sure the orifice at the manifold is clean.
12-30-2010 09:06 AM
falatude
Quote:
Originally Posted by MikeMYJ View Post
My YJ was running rough, so I added some Lucas injector cleaner. I would drop to almost 500 RPMs. Once I ran that stuff through, I was back to normal.
+1
Lucas is good stuff.
12-30-2010 08:54 AM
MikeMTJ My YJ was running rough, so I added some Lucas injector cleaner. I would drop to almost 500 RPMs. Once I ran that stuff through, I was back to normal.
12-30-2010 07:01 AM
falatude
Quote:
Originally Posted by josi1089 View Post
yo preditur... sorry it took long to post this, but below is pic of my engine. like i said the community can judge on whether i got this right. according to jgwalt i do not have a ccv. but to answer your question i pulled off the hose from the brass valve (i think this is my pcv) and unscrewed it to clean it. hope this helps. for the community, if i am wrong please feel free to correct my ignorance.
I pulled my valve cover and discovered both pickup tubes were plugged solid. Took them both apart, cleaned and reassembled.
Made a slight difference. Don't forget to install a new gasket.
When you remove your oil fill cap on top of your valve cover (engine running) do you get oil spitting out or excessive air pushing from the opening?
12-30-2010 01:12 AM
josi1089 @ garyk, i haven't ran a legit cleaner through the injectors... just poured in the stp fuel injector solution during regular trips to the gas station.
@ 60 mg, no light.
@ jenkins, your suggestions are money. do you have a shop in socal (orange county) by chance??? and on which fixes would you allow a novice to diy? and which ones should i take to a shop?
12-30-2010 01:01 AM
josi1089 yo preditur... sorry it took long to post this, but below is pic of my engine. like i said the community can judge on whether i got this right. according to jgwalt i do not have a ccv. but to answer your question i pulled off the hose from the brass valve (i think this is my pcv) and unscrewed it to clean it. hope this helps. for the community, if i am wrong please feel free to correct my ignorance.
12-24-2010 09:34 AM
JenkinsJeep95 It could be a number of things really. Just go throught the list and elininate them 1 by 1 starting witht the cheapest or easiest fixes first I would suggest. But here they are in no particular order:

1. Check vacuum hoses for leaks.

2. Check intake manifold gasket surfaces for leaks.

3. Check EGR or CCV valve for leaks or plugs.

4. Check fuel pump pressure, and fuel filter.

5. Check for leaking head gasket (requires a cylinder compression check)

6. Worn timing chain.

7. Timing out of adjustment.

8. Burned or leaking valves.

9. Dirty or clogged injectors or carb.

10. Idle speed out of adjustment.

11. Camshaft lobes worn.

Check that and let us know if and what fixed it.
12-23-2010 02:24 PM
60mg Is the engine light on by any chance?
12-23-2010 01:59 PM
Garyk You could have a bad or clogged injector, have you tried running some injector cleaner thru it.
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