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12:12:54 - 05/08/2024
V8 Dakotas
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rick
Dodge Dakota
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2/13/2003
22:49:01
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 Subject: tranny slipping when cold?
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Message:
anyone know why my 99 dak revved up to 3000 rpm in drive going @ 45 mph but didn't increase speed or have any effect on the tranny. lasted only for a couple seconds after I backed off the gas and "made it shift" with the gas pedal. By the way, it was real cold ( @ 10 degrees) and this happened 1 or 2 minutes after I started it.What's this I hear @ only using synthetic fluid or it will eat up the teflon?
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sandman
Dodge Dakota
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2/15/2003
11:17:37
| RE: tranny slipping when cold?
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Message:
Well I would say get it checked out right away. It could be as simple as a solanoid going bad or just some varnish build up. You have to remember that line pressure is what governs a transmissions actions. I have seen a line pressure fluct. of just 3-5 psi past limit make a trans slip or fail to release. Check codes first, check valve body and then refill the trans with a high quality synthetic like Amsoil or Redline if you can not find anything wrong. You might even consider a flush and refill if you think it is just varnish. If the trany is no longer under waranty at you suspect varnish you could try adding a quart of Trans-X,Transmedic.....They have solvents to remove varnish and seal conditioners to swell and soften old hard shrinking seals. I have never seen them hurt any transmission at all. I once worked at a shop that repaired alot of used cars for dealer lots. If a trany had realy poor shift quality slipped etc...The first thing we did change the fluid and add a quart of trans-x. Then we would take that car home for the weekend and drive it around for the week end or use it to run errands for the shop. Usualy within 100 miles or less the transmission would start to shift properly again. This worked about 65% of the time. The problem was almost always varnish! Most people never change their tranyfluid in the 3-5 years they own a car!!! If you have stayed up with fluid changes and have never let your fluid oxidize then all of this would be wasted on you. Today most people go for a total transmission flush and refill which is even better if done right with proper fluids and solvents.
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