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Old Sep 21, 2015, 03:49 PM
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Old May 31, 2015 | 05:11 PM
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Originally Posted by Bishop75
It is almost full and it happened when my roommates left in it
that's the problem. Never let other people drive your jeeps.
Old May 31, 2015 | 05:12 PM
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This morning when my roommates left in it the tank was almost full and it happened to them
Old May 31, 2015 | 06:19 PM
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Originally Posted by XJwonders
lol exactly. I wouldn't spend 55 on a part just to see if it works
People think harmonic balancers, when they fail, will give a vibration. The harmonics that the balancer eliminates are beyond human awareness.

Here's what a failed balancer looks like.

Please note that this particular balancer is not in it's original position on the front of the crankshaft.
Attached Thumbnails XJ Ask the Question Thread-harmonic-balancer-failure.jpg  
Old May 31, 2015 | 07:03 PM
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Originally Posted by cruiser54
People think harmonic balancers, when they fail, will give a vibration. The harmonics that the balancer eliminates are beyond human awareness. Here's what a failed balancer looks like. Please note that this particular balancer is not in it's original position on the front of the crankshaft.
I have had a harmonic balancer pulley fail on me on my crawler when the outer pulley separated from inner pulley. There were zero vibes that occurred beforehand.
Old May 31, 2015 | 08:33 PM
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did my first tune up today(plugs and wires). I'm getting a rough idle with a gas smell now. any thoughts? 99 xj 4.0
Old May 31, 2015 | 08:34 PM
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Originally Posted by thestiegmyster
did my first tune up today(plugs and wires). I'm getting a rough idle with a gas smell now. any thoughts? 99 xj 4.0
did u cross the wires with wrong terminals on the distributor cap or plugs?
Old May 31, 2015 | 08:42 PM
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Originally Posted by XJwonders
did u cross the wires with wrong terminals on the distributor cap or plugs?
did them one a time. so i don't think so.
Old May 31, 2015 | 08:43 PM
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Originally Posted by thestiegmyster
did them one a time. so i don't think so.
is the spark plugs torqued to spec? Any wires that weren't pressed down on the plugs fully?
Old May 31, 2015 | 08:51 PM
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Originally Posted by thestiegmyster
did my first tune up today(plugs and wires). I'm getting a rough idle with a gas smell now. any thoughts? 99 xj 4.0
What brand everything dod you use. Didnt do the dizzy?
Old May 31, 2015 | 08:52 PM
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Originally Posted by XJwonders
did u cross the wires with wrong terminals on the distributor cap or plugs?
Originally Posted by XJwonders
is the spark plugs torqued to spec? Any wires that weren't pressed down on the plugs fully?
used a torque wrench on all besides the one closest to the firewall (not enough space). I will try to tighten that one now.

checked that the wires were down fully.

thanks
Old May 31, 2015 | 08:54 PM
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Originally Posted by thestiegmyster
used a torque wrench on all besides the one closest to the firewall (not enough space). I will try to tighten that one now. checked that the wires were down fully. thanks
is there any trouble codes on?
Old May 31, 2015 | 08:56 PM
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Originally Posted by XJwonders
is there any trouble codes on?
nope
Old May 31, 2015 | 09:07 PM
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Originally Posted by thestiegmyster
nope
checked the plugs and tightened the one near the fire wall, still a rough idle
Old May 31, 2015 | 09:16 PM
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Originally Posted by Bishop75
It is almost full and it happened when my roommates left in it
This started happening when you left your room mates in it? Take them out
Old May 31, 2015 | 09:56 PM
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Originally Posted by salad
This started happening when you left your room mates in it? Take them out
x2... With a shotgun and slugs



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