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| Rough Idle http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=3367 |
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| Author: | GPR65 [ Thu Nov 10, 2005 9:14 pm ] |
| Post subject: | Rough Idle |
My brother has an 04 and is experincing a rough idle. We have used the 3 step process for cleaning the injectors and fuel system out and still have a bit of roughness. Is there a solution for this. Thanks, Chris |
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| Author: | Jeepjeepster [ Thu Nov 10, 2005 10:42 pm ] |
| Post subject: | |
well, have the spark plugs been changed? Whats the mileage? Could be bad gas. thats about all i can think about at the moment. |
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| Author: | USAFCOP [ Fri Nov 11, 2005 12:12 am ] |
| Post subject: | |
any engine codes? I had a rough idle, and got a code... one of my coils went bad. On the lib, each spark plug has its own coil pack |
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| Author: | GPR65 [ Fri Nov 11, 2005 12:28 am ] |
| Post subject: | |
Thanks i will have him change the plugs. No codes yet. Chris |
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| Author: | Guest [ Fri Nov 11, 2005 3:28 am ] |
| Post subject: | |
the 3.7L is an odd-fire V6, that's why the idle is a little rough. it sounds like it's surging, right, but the tach needle doesn't actually move? |
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| Author: | winkelhawk [ Fri Nov 11, 2005 7:11 am ] |
| Post subject: | |
I installed a set of Denso Iridium plugs, now the Libby idles better than new. I had a roung idle with a set of Chamions and Bosh +4's. |
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| Author: | kjrenegade [ Fri Nov 11, 2005 9:57 am ] |
| Post subject: | |
Question- what is an "odd-fire V6"? Also, Winkel, were the +4s a decent plug? I'm putting a set in this weekend. |
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| Author: | Guest [ Fri Nov 11, 2005 9:59 am ] |
| Post subject: | |
an odd fire V6 (at least this is how i've always understood it) has two cylinders that fire at the same, or close to the same time, thus makin a "rough spot" in the idle. |
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| Author: | winkelhawk [ Sat Nov 12, 2005 7:11 am ] |
| Post subject: | |
I liked the Bosch +4's alot, but the truck does run better with the Denso's. They are also double the price of the Bosch. I replaced them with 60,000 miles and they still looked good. |
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