How to replace transmission filter in 1989 k 1500

SOURCE: Transmission Problems

Is it missing reverse 2nd and 4th? If so it has a broken reverse reaction shell. They aren't too hard to replace

SOURCE: Transmission fluid flushing

In normal situations people do not flush their trannys. Your would normally just lower the pand and change the filter and replace the fluid that came out. If you are not having a problem with your tranny this is what I would suggest. As the fluid gets older the tranny gets "used to" the old oil that is in there. When you add new fluids the new fluid contains detergents that clean the internal parts as they circulate. Unless this is the first time you've been to the recommended mileage for changing the fluid (I.E. 30,000 miles) you could flush it. If you do not know the history of changes, or if you are at, lets say 100,000 miles I wouldn't recommend flushing it. When the new detergents clean out the parts they remove gunk that is actually helping the transmission. Don't get me wrong, you don't want a whole lot of gunk, but you also don't want to remove gunk that for example is holding a pin in place, so the pin falls out (just an example) I hope this wasn't too hard to understand, and I hope I answered your question.

SOURCE: 01 duramax allison changed fluid and filters now in limp mode

Make sure you have the proper amount of tranny fluild in it and get that Valvoline fluid out of it. Allison transmissons have there own type of tranny fluid and you want to use it. You can buy the right stuff from a Allison dealer. Most Detroit Diesel dealers are also Allison dealers. Look them up in your phone book and they will tell you the quanity and sell you five gallon pails of the fluid. Just get the serial number off of the side of the transmisson before you call. Change the fliters again too. Believe me, this is important. My company has Yard horses with Allison transmissions and you don't want to screw with the small stuff. Service them right and they work as hard as you want.

Rob Sinbad

• 709 Answers
• Posted on Sep 27, 2009

SOURCE: How many quarts of transmission fluid is in a 1999 Chevy Malibu?

Before you drain the fluid, make sure you have a suitable funnel(one of those long flexible tube types worked great for me) to get in past what is in the way. Be careful with the fill plug because you need to have your car level, jacking up the front end won't do it because then you have tilted the transmission and the fluid level is off. I used a lift to check after filling it and it took about another 1/8 quart, so if you fill 7 1/4 quarts you would have a healthy slight overfill and I wouldn't worry about checking it if you don't have a lift. The 13 quarts total is talking about the torque convertor being dry which as long as you don't start the car with no fluid in the there won't be a problem and 7 1/4 quarts would do it.

SOURCE: 1997 Chevy 1500 P/U 4x4 small V8. Transmission shifting issue.

you may be confusing the torque converter clutch engagement with o.d. this trans has a problem with the T.C.C. regulator valve wearing out the valve body bore. this will cause the converter clutch to engage only sometimes or not at all. this will set a P1870 code in the control module. when this code is stored in the controller, ( check engine light may or may not be on), it increases the pressure in the transmission causing the 1-2 shift to be harsh. ask a local tranny shop to scan the vehicle ( most will do this for free) if this is the problem they can either fix your valve body (sonnax parts) or replace it with an upgraded valve body. hope this helps