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I was on my way home today and my "O/D off" light came on and I didn't touch the O/D off button, then the tranny temp light came on so i pulled over and let it sit then limped it home. I checked the tranny fluid, it was fine, normal color and everything. Its had no problems shifting at all in any gear. Could this be the tranny filter? or something else? PLEASE tell me i don't need a rebuild! thanks!
 

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no i don't have OD and i could smell the tranny fluid when i got home. I wish i had the computer so i could see what codes its kicking. Its gonna cost me 35 bucks to do that and if its a filter shoot i'd rather spend the 35 bucks on that then diagnostic. I had this problem with my 96 and it was some kind of ball bearing thing in the cooling lines for it, like the ball bearing was stuck or something? I'm at a loss right now though..
 

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What year truck is it. If it has the 46RE instead of the 46RH (switched in '96 I think), then the OD is electronically controlled. You might be able to turn the key to get the codes (some years can do this, my '98 can't though), or just go to AutoZone and they will scan it for free.
 

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i got a 98 as well, auto zone? they know how to use a scanner? everytime i go there they give me the wrong stuff LoL they can scan it and all that and gimme the tranny trouble codes?
 

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they have always done me right, and yes, they can scan it for free.
 

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On 2005-12-01 15:04, Sickening_Addiction wrote:
I was on my way home today and my "O/D off" light came on and I didn't touch the O/D off button, then the tranny temp light came on so i pulled over and let it sit then limped it home. I checked the tranny fluid, it was fine, normal color and everything. Its had no problems shifting at all in any gear. Could this be the tranny filter? or something else? PLEASE tell me i don't need a rebuild! thanks!

Same problem with my 2000 model, O/D off light came on, a little while later, tranny temp light.. Probable the PCV valve within the radiator on the return side for your tranny coolant has melted, and hopefully nothing is damaged inside. Go get a aftermarket tranny cooler and use that instead of the stock setup. At least pull the pan and check for metal shavings. My torque convertor ended up shaving off a great deal of metal after that had happened with me and trashed the tranny. What was weird, was that everything was still shifting good, but damaged bad. Just something to think about. Sorry for the bad news. Go get that cooler from autozone or any other autostore. G-luck
 
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