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Old April 30th, 2013, 07:02 PM   #1
Jleach0696
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Default replaced trans now knocking sound

jeep trans or torque converter was shot just replaced with a used one from a newer jeep now theres a little knocking sound from the bellhousing while that gets worse while coasting and the jeep seams low on power cant get it to spin the tires even around a corner

has new engine and trans mounts

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Old May 1st, 2013, 04:47 AM   #2
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Check the bolts on torque converter. If they are lose it will sound like knocking.
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Old May 1st, 2013, 07:15 AM   #3
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Yes double check the bolts. Also are you sure the converter is seated right.
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Old May 1st, 2013, 07:33 AM   #4
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Did you use the correct torque coverter bolts? Some times there isn't enough clearance for standard headed bolts.
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Old May 1st, 2013, 12:32 PM   #5
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checking converter bolts but i double checked they were tight when i installed it . there is also a whining noise that doesnt start until its moving and it sounds worse when coasting .

the torque converter did go in kinda hard and took alot of messing with to get it in but when compared to the old trans it looked like it was seated just as deep
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Old May 1st, 2013, 07:51 PM   #6
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lose torque converter bolts are pretty common on 4.0s
my last one did it and my current one is like that, i need to get down and tighten them
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Old May 3rd, 2013, 12:29 AM   #7
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i checked the torque converter bolts are tight and they are the original bolts.
it makes the sound whenever the engine is running in all gears and theres more vibration then before the swap. i got a rebuilt trans that was supposed to be for the stroker im gonna try. while its off is it safe to put a bellhousing and cps on and run the engine without a torque converter or trans attached to make sure the engine isnt causing the vibration ?
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Old June 2nd, 2013, 10:04 AM   #8
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