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  #11  
Old 12-12-2012, 01:15 PM
Fisher Dave Fisher Dave is offline
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I'm going to add this in because we have nearly the same truck with the same milage..

Check your main electrical harness by the relay box under the hood, follow it to the grounds bolted to the fender, and you probably have a ground on the master cyl. Check for ANY sign of heat stress. You can try to wiggle the harness in different loactions with the vehicle running to see if it changes anything... you might just have a weak connection somewhere. Sometimes wiggling works, other times you need to pull some of the sheath off the harness to inspect it internaly.

Rams are notorious for corrosion in the main engine harness under the relay box due to corrosion. If you have an intermittent short it can absolutely cause an intermittent miss.
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  #12  
Old 12-15-2012, 03:48 PM
Big Bob Big Bob is offline
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I just smogged it in October, so I'm good for 2 years. How does the lack of cats effect the 02 sensor? The 02 sensors are well before the cats, and the only thing I had to disconnect was the fresh air to the cats that comes from the pump in the engine compartment.
After I removed the stock exhaust I had one occasion where the engine gave up on me, and by one I mean 2 or 3 times while driving it home, but I have put close to 200 miles on it since and it has run fine?????
Positive battery cable is in bad shape, cleaned it upand will replace it today and go from there.
Please explain the cat/02 sensor relationship.
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  #13  
Old 01-08-2013, 06:34 PM
Big Bob Big Bob is offline
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Ok, now that he holidays are over I can get back to this project. I replaced the battery cables, checked the coil packs, removed the cats for the time being, and now it is still doing the same thing. So the next item is the camshaft sensor, as I have discovered the problems I am having are a symptom of a bad cam and or crank sensor, then I'll replace the 02 sensors. If that doesn't work it looks like I go after the PCM. After all that if I still have problems I'll jack up the radiator cap and put a new truck under it.
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  #14  
Old 01-08-2013, 11:10 PM
99 V10 99 V10 is offline
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I can't understand removing the cats. As a former mechanic with experience in racing I just don't get the thought pattern. I guess all my training including carrying a Class A California Smog license was wrong. Computer vehicles need back pressure to run right. These aren't 60s muscle cars. These are vehicles that run a very fine line between best overall performance & fuel mileage in all conditions under every kind of driver & thousands of changes oten. You gain nothing by removing cats. Mopars run worse than others removing them. My Jeep GC 5.9 Limited ran way better & got better mileage with cats than without. How I know is I bought it & the cat had been removed. I took it to my muffler guy & he installed a high flow cat & turbo muffler & it ran completely different. For one smoother.
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  #15  
Old 01-08-2013, 11:30 PM
pwrman pwrman is offline
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JMO but 12.49 is a tad low, did you load test the battery?
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  #16  
Old 01-13-2013, 07:53 PM
99 V10 99 V10 is offline
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Quote:
Originally Posted by pwrman View Post
JMO but 12.49 is a tad low, did you load test the battery?
I agree. I just replaced my battery although I didn't have a miss I had a couple of times it needed jumped after using the P/L & not running it for a few weeks. Batteries today are only good for a few years. In fact battery warranties are now flat 2 years & that is it, unless you buy the new Exides for $275 then you get a flat 4 year. NO MORE PRORATING or 7 year warranties.
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  #17  
Old 01-18-2013, 02:57 PM
Big Bob Big Bob is offline
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The cats are removed as a temporary measure. I am just trying to figure out why the engine acts like the timing is off 180 degrees every now and then. One of the cats was coming apart internally and needed to be replaced anyway, but because of the muffler pretty much everything had to come off to determin which cat needed replaceing.
I have repaired the battery cables, and since then I have had the engine run bad once, have about 200 miles on it since then, just waiting for it to do it again so I can eliminate and move on to the next suspected part.
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  #18  
Old 01-18-2013, 05:02 PM
99 V10 99 V10 is offline
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If you need to replace cats I would use an aftermarket like MagnaFlow high flow cats. I run a two into one MagnaFlow stainless steel muffler. I'm pretty sure Arizona doesn't require OEM like California does. But check. I bought the MagnaFlow cats for around $125ea a few years ago.
It takes time to reset the computer after you erase the codes. I'm not sure of the drive cycles.
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  #19  
Old 02-01-2013, 10:07 PM
Big Bob Big Bob is offline
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Ok, this is starting to get frustrating. By any chance, does anybody know what was happening if the ignition switch recall was not done. I am still having the same problem, acting as if the timing is off, or like the coil is bad. I turned on the fan and made it home and I was thinking that may have had something to do with it.
Anybody? Anybodt at all?
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  #20  
Old 02-02-2013, 01:08 AM
99 V10 99 V10 is offline
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Bob see if anything here helps.
http://dodgeram.info/tsb/index.html
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