Transmission knocking PLEASE PLEASE HELP!!!
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Transmission knocking PLEASE PLEASE HELP!!!
i have a 1969 c4 in my fox it has started this knocking noise very very very load irratic knock. i sounds as if you were hitting the bell with a hammer. the nosie will go away if you take the car just off idle to around 1200 rpm i took the tranny off put the bell back on the motor and started it no noise. i took of the flex plate no cracks all bolts tight i took the tranny apart a thust washer was lose i replaced the noise went away. now the pesky noise is back. i agaijn took the tranny out no loose washer i took apart the tranny anyway replaced all the washers put tranny back in and this time no solution i still have a knock. please please help me i have run out of ideas.
thanks Paul.
if you would like to hear i will be at bmp with the car sat. i plan to run it anyway as there are no issues with the car other than noise. maybe it will let lose and i will find the problem.
thanks Paul.
if you would like to hear i will be at bmp with the car sat. i plan to run it anyway as there are no issues with the car other than noise. maybe it will let lose and i will find the problem.
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Do you have a cat on the car?
My F150 got this LOUD knocking, you would swear the rod was about to punch out the side of the block. Closer inspection revealed it coming from the bellhousing area. All the bolts there were tight.
Then somehow I found that a bunch of the cat brick busted loose, and it was clanking around in the cat body, making more noise than I ever thought possible.
And it would only do it at idle basically. Any time I would put a load on it, the noise would go away because it would jam the particles up against what was left of the converter. But at light/no load, it would fling around causing all sorts of noise.
My F150 got this LOUD knocking, you would swear the rod was about to punch out the side of the block. Closer inspection revealed it coming from the bellhousing area. All the bolts there were tight.
Then somehow I found that a bunch of the cat brick busted loose, and it was clanking around in the cat body, making more noise than I ever thought possible.
And it would only do it at idle basically. Any time I would put a load on it, the noise would go away because it would jam the particles up against what was left of the converter. But at light/no load, it would fling around causing all sorts of noise.
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no cats, all converter and flywheel bolts tight trans is in alignment with motor and diveshaft. sprayed the car knock gone again for now. 
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i am not sure of the make but it is a 5000 nitrous conv. it is very very tight. it will only flash about 2000 rpms off idle but it will go up to 5000 on the brake.
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It really sounds like something in the stall.
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All American Street Car Performance <--- Facebook page link, check us out!
6187 126th Ave North
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(727)535-6905 - Shaun
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6187 126th Ave North
Largo fl 33773
MV#72427
(727)535-6905 - Shaun
