View Full Version : Transmisson
odleo
02-20-2007, 01:40 AM
Hey guys,
Recently bought a 98 Dodge and the transmission is slipping. I was told by a friend that when I have it rebuilt to have them by pass the valve at the transmission cooler. I was told that the check valve attracts debris and this is why the transmission started to slip it got too hot. Anyone have an idea. I was going to take the truck and have the transmission work done this week. :confused: :confused:
vicegrip
02-20-2007, 04:43 AM
an automatic transmission that came intact and functioning properly , at original purchase ....is by nature debrie free , once there is any debrei in the system "trapped or not" there is already a problem .......thats why those inspection / fluid change tune-up deals are fraudulent , if the fluid has sediment or smell or disscoloration that is the signature of the amount of and type of were that has occured !!
by-passing a valve may or may not have merit , depending on useage , separate from presence of debrie
Aerometalworker
02-23-2007, 08:25 PM
Hey guys,
Recently bought a 98 Dodge and the transmission is slipping. I was told by a friend that when I have it rebuilt to have them by pass the valve at the transmission cooler. I was told that the check valve attracts debris and this is why the transmission started to slip it got too hot. Anyone have an idea. I was going to take the truck and have the transmission work done this week.
HI,
I have a 1995 and my Father has a 2000 Dodge 1500. I was told by Chrysler that there was a change in the anti drainback valve in the transmission cooler that affected 1997-1999 I believe were the years. They went to a plastic ball material instead of brass and the plastic ones swell over time and stick. Removal is an option, or updating to the 2000MY part should fix it too. Removal of the valve can cause some lag first thing in the morning as the system has drained down. Any automatic ( or manual for that matter ) does make debris as part of normal opperation, there are fine steel particles from the gears, and of course friction lining material from the shift bands. I have always done a 25K service of changing the trans oil, filter , and shift band adjustment. My 1996 has 342k towing a flatbed trailer accross the US. Now my wifes Chevy Cavalier on the other hand.......Im contemplating setting it ablaze and dancing around its burning corpse.
-Aaron
vicegrip
02-23-2007, 10:49 PM
HI,
I have a 1995 and my Father has a 2000 Dodge 1500. I was told by Chrysler that there was a change in the anti drainback valve in the transmission cooler that affected 1997-1999 I believe were the years. They went to a plastic ball material instead of brass and the plastic ones swell over time and stick. Removal is an option, or updating to the 2000MY part should fix it too. Removal of the valve can cause some lag first thing in the morning as the system has drained down. Any automatic ( or manual for that matter ) does make debris as part of normal opperation, there are fine steel particles from the gears, and of course friction lining material from the shift bands. I have always done a 25K service of changing the trans oil, filter , and shift band adjustment. My 1996 has 342k towing a flatbed trailer accross the US. Now my wifes Chevy Cavalier on the other hand.......Im contemplating setting it ablaze and dancing around its burning corpse.
-Aaron
Just to clearify ....seddiment (Fine seddiment) = normal
DeBris !! ....say particals you can actually "feel" like fine beach-sand rubbed between your fingers = problems .
Further , if you are not going to "do-it-yourself " attending to a sick transmission .....don't do a fluid & filter change ...and when it didn't help ....then have your mechanic look into it ......
You just erased the pin-point evidence that can be read like a book from the seddiment in the pan
may as well just do a whole swap-out or complete rebuild ....as far as cost / time is concerned
after a fluid change & pan-pull
Phil
sctswelder
02-25-2007, 11:18 AM
dodges are hard on trannys they blow rite throw them
Troll
02-25-2007, 07:46 PM
Hi all, I have been lurking around for a few months and really like this site. I am new to welding, and have been attending a local college TIG class for a few weeks, I really enjoy it.
Anyhow, I felt compelled to register because I have been a Dodge trans tech. for about 15 years and can add some intelligent comments.
The valve in question is called the converter drainback valve and I always replace them when I overhaul a trans. I have (on rare ocassions) reused it, by flushing it with a cooler flushing machine, and I also know guys that never replace them (only flush them)and they have great success rates. Bypassing is another option that some builders use, however that "fix" tends to be very prone to leaking, its really a matter of personal preference.
You may get the morning delay as described above if you do not replace it. It is a fairly cheap part and I would put it back. Dodge did in fact update the part a few years ago, and I assure you, it will not hurt your trans or cause any failures. If you have enough debris in the trans to clog up that valve; you have problems already.
vicegrip
02-26-2007, 08:31 AM
Hi all, Anyhow, I felt compelled to register because I have been a Dodge trans tech. for about 15 years and can add some intelligent comments.
....................................
You may get the morning delay as described above if you do not replace it. It is a fairly cheap part and I would put it back. .............. If you have enough debris in the trans to clog up that valve; you have problems already.
A tranmission Pro , is a fine thing to have in the neihborhood :cool: :cool:
Welcome Welcome !!
Phil
xxjeepxx
02-28-2007, 01:02 PM
Make sure u take care of it to soon. I had a similar problem on one of my jeeps that had a automatic trans. The vent fitting got pluged up some how & the trans heated up so bad ( after a day of wheeling) on the way home I blew out the main seal up front by the tourqe converter. Lets say it sucked!!! :( She was bleading bad!!