In doing that, wipe down the gasket pan mounting area with a lacquer thinner to ensure that it is free of debris. Having applied the fluid, gently push it into its place and after that, get the gasket pan ready. Before you install the new filter, add a little fluid to its seal so that it can easily seats well in the case. Remember that the old filter and gasket pan had to be trashed, so there is a need for new ones to be reinstated. Thereafter, everything should be cleaned up, and get ready to reinstall the transmission back, including the new filter and gasket. If yes, then keep reading but if the reverse is the case, repeat step 3 and check if your gasket pan is drained or still flowing.Īt this point, the drained filter and gasket pan should be dropped into the dustbin, the fluid should be recycled, and the rearmost bolts should go into the sink. If you are reading step 4, it means you’ve successfully removed the filter, and your gasket pan is fully drained. Step 4: Trash the Drained Gasket Pan and Filter So if you encountered a similar problem along the line, a plier with a pick and needle-nose will solve the problem. And if you attempt to shove another filter on top of it, it won’t seat, and it won’t fit into the pan. The problem there is that the seal that plugs the filter into its case often gets stiffed, harden, and stuck-up there. So while you don’t have anything to do with the valve body, try to focus on how to safely remove the filter as this is exactly where many people do encounter problems when doing the transmission service themselves. If you’ll be modifying and installing a shift kit, the valve body is what you are going to remove, but our main focus here is the filter and not the other way round! While attempting to remove it, what you see next is called valve body. Having removed and cleaned the gasket, what is next in your 700R4 transmission services is to remove its filter. And you can equally use a water-based degreaser (if you have it) in your garage sink. If it pleases you, you can use the solvents and carb washer to get the gasket pan cleaned up. Take notice, it requires a thorough cleaning. After which, you will scrape and clean the mounting surface. Sometimes, the gasket may come off in pieces, and at times, you may have to remove them manually. Step 2: Remove, Scrape and Clean the GasketĪfter loosening the rearmost bolts with a stream of fluid flooding out of the trans pan, gently and completely place the pan on a clean earth surface so that the gasket can come off it with ease. That way, when the bolts are loosened toward the front rail, you will be able to control the pool of fluid that will flow out of the trans pan, and as such, you won’t make a big mess of yourself. But before losing them, you should have a big drain pan waiting and ready. The first thing you need to do in other to home-service your automatic transmission is to remove all the rearmost bolts. This procedure is practically feasible for all seasoned General Motor (GM) automatic transmissions. Without mincing words, below are the step-by-step approach on how to service your 700R4 transmission. So changing your 700R4 transmission filter regularly can extend the auto life cycle. After all, that’s what the servicing is all about. While it plays a key role in the auto trans, you can begin by replacing the filter. The first thing to tackle in your sojourn to service your 700R4 transmission is the fluid. How to Service Your GM 700R4 Transmission That being said, doing an absolute auto transmission rebuild is an interesting option left only to the professionals, but adding one or two shifts or doing the overall trans service is something that anyone can tackle with the help of this guide. This magnificent design was built to improve and economize fuel, among many other things. The 700R4 automatic transmission is a four-speed trans with powerful 30% overdrive situated at the fourth gear. Having a piece of basic knowledge on how to service your 700R4 transmission is not a bad idea, so coming down here to read the step-by-step approach on how to get it done will be a worthwhile journey.īut before then, you must note that the 700R4 automatic transmission, also known as the “hydramatic,” was designed and launched by General Motor’s company in 1982 as a perfect substitute for TH350.
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