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  #13  
Old 09-03-2013, 10:24 AM
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Re: Lots of BLACK smoke

Thanks frango. I'll give it a shot on Thursday. Any solvent that you prefer to clean it with?
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  #14  
Old 09-03-2013, 12:32 PM
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Re: Lots of BLACK smoke

Carburetor cleaner in spray works well.
Also have a look here, its about a 4.7, but the basic principle is the same: Lopey idle on an 02' Overland / 4.7HO
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Old 09-03-2013, 12:55 PM
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Re: Lots of BLACK smoke

cool, I'll check it out.
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Old 09-03-2013, 05:55 PM
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Quote:
Originally Posted by verboden1 View Post
Hey josh, an neighbors call out the Fire Department?? lol....

What, if any, improvements did you notice after using the power foam??
No live in the sticks.

Much smoother idle and better throttle response
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Old 09-04-2013, 07:39 AM
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Re: Lots of BLACK smoke

Hey Frank or any other knowlegable Jeepster......any idea what the part number is for the NGK O2 sensors are for a 2004 GC Laredo 4.0? This whole cali/fed emissions thing is confusing the crap out of me.
Here are my codes:
P0505- IAC (will try cleaning this on thursday)
P0171- bank 1 system too lean
P0131- Bank 1 O2 sensor, low voltage
P0157- Bank 2 Sensor 2, low voltage



Any help....?
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Old 09-04-2013, 08:34 AM
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Re: Lots of BLACK smoke

Just called the local dealer and gave him my VIN........I have all four O2 sensors...SOB. They wanted 450.00 for all four......Napa has the NGK's for 39.00 - 45.00.

The question is....which one(s) should I replace, based on the trouble codes??

i dunno about tackling this myself yet........
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Old 09-06-2013, 06:40 AM
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Re: Lots of BLACK smoke

After getting under the hood to clean the IAC, I found that the harness wires had been melted and were grounding out.....I did a halfway job of fixing it, then pulled the IAC, which was brand new....... I had disconnected the battery during the job. When I put it all back together, I took it for a twenty mile test drive. Whwen I got home, I did the three ignition turn thing and only og t the P0505 trouble code. So, I'll do a complete job in fixing the wiring harness and see where that leaves me. I'm thinking that it was all related to that one wiring harness.....pretty stoked. My on board computer showed my MPG's climbing also.

Thanks for the info..
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Old 09-06-2013, 11:12 AM
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Re: Lots of BLACK smoke

Sorry, missed your previous posts. Did the wiring touch any hot exhaust part that it melted? The IAC has no connection with the o2 sensors , other then the PCM itself, but maybe that the wiring problem caused a short and gave a false indication to the PCM.
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Old 01-14-2014, 07:14 PM
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Re: Lots of BLACK smoke

you could have gotten the O2 sensors from Rockauto.com for $21-23 each. Dont get bosch though...Jeeps don't like Bosch. :-) When my 1/1 (upstream left) sensor was bad, my jeep would do the same thing...cloud of black smoke and soot on the garage floor.
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