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Starts flashing then tranny stops pulling and engine revs until you let up it will finally start pulling again. No temp gauge increase.Starts flashing then tranny stops pulling and engine revs until you let up it will finally start pulling again. No temp gauge increase.
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That light means that the shift points have changed on the transmission. This is to get better economy when hauling. If it wont stop flashing then there is a valve in the transmission that is bad or sticking. You will have to have it removed and overhauled..
What vehicle is it on? The super duty pickups had this problem and it is a bad temp sensor in the transmission. It is easy to replace you just have to drop the tranny pan. The gasket is reuseable.
check it for a short in the wiring harness , check the trans temp with a laser pointer thermo gun before you leave and then after a drive , or when it goes haywire .
sounds like a bad sensor , or may be a sort .
Does the trans fluid have a burnt smell and is it brown or dark brown as opposed to a red wine color? If this is the case then you may have a service issue caused by a clogged trans filter which is what this sounds a great deal like and the sooner you get the truck to the dealer or your mechanic the better as the trans in these are not cheap to rebuild or replace.
Check the wiring on the frame where it turns and goes to the trans, i have found a couple with chaffed wires and some of the wires run the trans temp sensor.which will cause both of these problems.
I would begin by checking the transmission fluid level. If it's ok, then that means that your transmission has overheated. Have it checked for overheating damage by a professional transmission shop. If everything checks out ok have them add a secondary transmission cooler. This will allow the transmission to cool down faster under heavy hauling conditions. Hope this helps, good luck!
Starts flashing then tranny stops pulling and engine revs until you let up it will finally start pulling again. No temp gauge increase.
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