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Old 08-06-2013, 09:37 AM
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give me your feedback guys!!! trans

i have an 02 crew 4x4 with about 238k on it. bought it recently and i am unsure about the trans history. I think it is getting to the end of its life but i am wondering about the torque converter. It seems the rpms are very high when accelerating. The trans is not slipping it just has a very high stall rpm or at least it seems it does. The motor is stock other than a cold air intake and a van turbo. The rpms will hit almost redline when accelerating hard. When towing it seems it revving so high it is not making any torque. My question is to you guys where are your rpms when accelerating. If i just take off easy and keep the rpms down it seems like forever to get up to speed. I am planning on doing something with the trans soon just because of this converter issue but wanted some insight on what others are seeing. I am not interested in a fast truck i am interested in a towing truck and daily driver.
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Old 08-06-2013, 09:59 AM
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Originally Posted by northern1 View Post
i have an 02 crew 4x4 with about 238k on it. bought it recently and i am unsure about the trans history. I think it is getting to the end of its life but i am wondering about the torque converter. It seems the rpms are very high when accelerating. The trans is not slipping it just has a very high stall rpm or at least it seems it does. The motor is stock other than a cold air intake and a van turbo. The rpms will hit almost redline when accelerating hard. When towing it seems it revving so high it is not making any torque. My question is to you guys where are your rpms when accelerating. If i just take off easy and keep the rpms down it seems like forever to get up to speed. I am planning on doing something with the trans soon just because of this converter issue but wanted some insight on what others are seeing. I am not interested in a fast truck i am interested in a towing truck and daily driver.
What's up Tim? It could be possible that someone put a gasser trans in it. But I don't believe the TC would bolt up though. Your RPM's do seem rather high. Is the fluid OK? Maybe a filter and a half dozen QTS may help. IDK.

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Old 08-07-2013, 03:15 AM
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its going good coery. that was my thought too corey...gas converter??? its acts just like that. i just wonder with all the options out there for converters that someone put a performance converter of some sort in it..where is you truck at for rpm when accelerating??
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Old 08-07-2013, 04:04 AM
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Originally Posted by northern1 View Post
its going good coery. that was my thought too corey...gas converter??? its acts just like that. i just wonder with all the options out there for converters that someone put a performance converter of some sort in it..where is you truck at for rpm when accelerating??
Even a diesel performance converter will be much lower stall speed than gas. It may be possible that the gas and diesel do have the same bolt pattern, but I really don't know for sure.
Normal driving I'm hardly ever above 23-2500rpm during acceleration. At TC lockup at 58-59 mph im at 1500 rpm. But i also have 35" tires. But when I'm around 3-3700 my truck pulls very hard and makes quite a bit of power.

It is also possible the the TC is worn out/overheated too many times and some of the fins are broke/cracked etc. The 7.3's are known for failing mainly due to overheating from the well undersized cooler. Hence the reason why so many people put the 6.0L coolers in the 7.3.

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Last edited by hucorey; 08-07-2013 at 04:26 AM.
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Old 08-09-2013, 12:25 PM
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Here's a bump for ya Tim. I'm not a trans expert.

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