Could it be the Torque Converter?
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Could it be the Torque Converter?
I have noticed a low clunking sound in my 93 2wd E4OD automatic upon cold start. When it starts to get up to running temp. it fades and goes away. I thought at first it was maybe the engine lower end, but after doing some climbing and crawling around it sounds like it could be coming from the torque converter. All fluids are fine, no slippage, and shifts fine. The truck does have 150,000 miles on it with no heavy towing. Last fluid change was at aroud 120,000 miles. I just find it odd that it fades and goes away after it warms up. Has anyone ever experienced this before? Thanks in advance.
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From: Milwaukee, Wi
The EXACT SAME THING happens to me in my 93 302 E4OD 4X4. It knocks real hard and it seems to come from the bottom of the truck. I have done a lot reasearch and have found no finite explanation. I am almost positive it's not rod knock though because then it would be constant and would keep up with speed with the rpms, which does not because it goes away at anything faster than idle. Correct? I guess it could be the converter, I have not considered that yet. I have always just figures though that because our engines are so old and worn that they have a little detonation knock until warm although I have no evidence to back it up and have not checked my timing yet. Well that's my input, not very good but just what I always thought. Hope someone will be able to help both of us
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Any input is helpful. It does quiet a little when increaseing rpms, but is still there until it gets up to running temp. I was thinking the same thing that age had a lot to do with it, and really am willing to live with it except I would hate for the converter (if that is what it is) to come apart and waste the transmission. My thought is that as the ATF fluid heats up and expands in the converter, it quiets down. Did the exhaust leak noise fade after the truck warmed up and was it just a gasket or was it a cracked manifold? I know from reading on here that exhaust leaks are a common problem. Thanks
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that is a very good thought Ext. Cabh. Wr at least know for sure that it is something that is affected by heat. The small leak in the manifold also makes a lot of sense considering how hot they get, they could easily expand to fill the gap. If that is the case I suppose it would get worse with time too
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Just read a thread on unbolting the converter and sliding it back to clear the flex plate to take the converter out of the equation, there was never a follow up post on the success of this procedure, has anyone tried this?
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