4R100 question
Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
Originally Posted by yosemitesamiam
Hey, my mom always taught me there is no such thing as a stupid question...just stupid people.
On that note, I don't know! I'm just told that the converter has a drainplug on these!
I didn't think far enough ahead to figure out prefilling...I was just going to do it the old fashioned way...put fluid in until full, then start putting it in each gear to fill the journals...making sure the fluid level never drops too low...kind of like bleeding brakes I guess. Now you got me thinking though!
On that note, I don't know! I'm just told that the converter has a drainplug on these!
I didn't think far enough ahead to figure out prefilling...I was just going to do it the old fashioned way...put fluid in until full, then start putting it in each gear to fill the journals...making sure the fluid level never drops too low...kind of like bleeding brakes I guess. Now you got me thinking though!The fuel filter is on the drivers side frame rail. You should be able to see it from underneath the truck. IIRC it was somewhat of a pita.
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Senior User
Joined: Jun 2006
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From: Glendora, CA
Originally Posted by MisterCMK
You got it. There should be a drain plug that you can get at from the access hole on the bellhousing. When I change tranny fluid I fill it until full and then go through the gears until it looks good and then drive it around the block and keep checking it.
The fuel filter is on the drivers side frame rail. You should be able to see it from underneath the truck. IIRC it was somewhat of a pita.
The fuel filter is on the drivers side frame rail. You should be able to see it from underneath the truck. IIRC it was somewhat of a pita.
Hey question...how much are fuel pumps going for on these rigs? Hope it ain't $800 like our Yukon was!
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Senior User
Joined: Jun 2006
Posts: 285
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From: Glendora, CA
Originally Posted by MisterCMK
You got it. There should be a drain plug that you can get at from the access hole on the bellhousing. When I change tranny fluid I fill it until full and then go through the gears until it looks good and then drive it around the block and keep checking it.
The fuel filter is on the drivers side frame rail. You should be able to see it from underneath the truck. IIRC it was somewhat of a pita.
The fuel filter is on the drivers side frame rail. You should be able to see it from underneath the truck. IIRC it was somewhat of a pita.
http://www.margulisfamily.net/rtnight.jpg
and if you really want to get excited...turn up your speakers!
http://www.margulisfamily.net/PROFRT.mov
be patient...that .mov is about 11meg.
Senior User
Joined: Feb 2004
Posts: 317
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From: Omaha, Nebraska USA
There is a rubber plug on the bottom of the bell housing. Pull the rubber plug then turn the crank shaft either with a socket and breaker bar or I use a starter button to turn the engine over. What you are looking for is a square drain plug to line up with the hole in the bottom of the bell housing. Drain the fluid, it takes a while to drain through that drain plug. Put the drain plug back in then start filling the trans back up. I put in around 8-10 quarts then start it up and start checking it after running it through the gears. It takes I beleive around 15-17 quarts for a complete change. I wish all vehicals had a converter drain which I feel is alot better than flushing a trans,but if you keep up with the fluid changes it shouldn't become an issue. 
Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
Originally Posted by yosemitesamiam
True...and not run it dry at the same time. Not a bad plan. While I'm there, should throw an external cooler on it!
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Senior User
Joined: Jun 2006
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From: Glendora, CA
Originally Posted by MisterCMK
That wouldn't be a bad idea at all. While you're at it, add an external cartridge style filter rather than the screen type that is in there already.
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Senior User
Joined: Jun 2006
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From: Glendora, CA
Originally Posted by Omahastro1
There is a rubber plug on the bottom of the bell housing. Pull the rubber plug then turn the crank shaft either with a socket and breaker bar or I use a starter button to turn the engine over. What you are looking for is a square drain plug to line up with the hole in the bottom of the bell housing. Drain the fluid, it takes a while to drain through that drain plug. Put the drain plug back in then start filling the trans back up. I put in around 8-10 quarts then start it up and start checking it after running it through the gears. It takes I beleive around 15-17 quarts for a complete change. I wish all vehicals had a converter drain which I feel is alot better than flushing a trans,but if you keep up with the fluid changes it shouldn't become an issue.
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Senior User
Joined: Jun 2006
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From: Glendora, CA
Originally Posted by MisterCMK
That wouldn't be a bad idea at all. While you're at it, add an external cartridge style filter rather than the screen type that is in there already.
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Senior User
Joined: Jun 2006
Posts: 285
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From: Glendora, CA
Originally Posted by heymrdj
Could your problem be poor pressure in the valve body in your tranny? A clog or something?