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| Transmission Light..... http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=49565 |
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| Author: | Turbo Tim [ Sun Jan 24, 2010 12:33 am ] |
| Post subject: | Transmission Light..... |
Ok so I take the CRD out of the nice warm garage and start up the freeway to go play in the snow. (Ya I know it's hard to believe that it snows in AZ). Anyway, it's about 34* degrees outside and the transmission light comes on! Drives ok, stays on for about 20+ miles and then goes out. Not overheating here. So I drive back home and it is just fine. No light. I scan the whole system with my Auto Enginuity scanner and no codes or anything. Wassssup with this? Is this normal behavior for CRD's? |
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| Author: | Joe Romas [ Sun Jan 24, 2010 10:50 am ] |
| Post subject: | Re: Transmission Light..... |
Could you have gotten enough snow and ice in the radiator area to restrict the airflow? That would be my first thought. Second thought is a faulty connection at the transmission. |
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| Author: | JL Rockies [ Sun Jan 24, 2010 1:21 pm ] |
| Post subject: | Re: Transmission Light..... |
Yeah that. I had the tranny light come on (as did another CRD) on the high-altitude trails of CO when 4-Lo wasn't engaged. The thin air drastically reduces fan efficiency. I believe the trans cooling is the bleeding edge of minimal on these rigs and it doesn't take much to cross over to the not good enough. |
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| Author: | Turbo Tim [ Sun Jan 24, 2010 1:34 pm ] |
| Post subject: | Re: Transmission Light..... |
The light came on while driving down the interstate at 70 MPH. No snow or rain yet, just ice cold air going through the radiator. Temps were normal. I was on my way to the snow. I changed the tranny oil about 7K miles ago and level is good, no stink, not funny looking. Maybe just a bad sensor or wiring? We'll see. |
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| Author: | danoid [ Sun Jan 24, 2010 3:14 pm ] |
| Post subject: | Re: Transmission Light..... |
If the light came on there should be a code stored... |
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| Author: | click23 [ Mon Jan 25, 2010 5:14 pm ] |
| Post subject: | Re: Transmission Light..... |
Are you are talking about the "Trans Temp" light? I had that light come on when driving in limp mode and toasted my transmission, torque converter got so hot that it blued the steel, and it did not throw any codes. |
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| Author: | geordi [ Mon Jan 25, 2010 6:10 pm ] |
| Post subject: | Re: Transmission Light..... |
I've pulled trailers (my 7.5x20 car hauler box comes to mind) that made the engine temp gauge rise... And never seen the trans light. Dragging it home empty when I bought it, I couldn't get above 65mph, but I blame the mismatched and one flat tire for extra drag. Sway and drag problems went away when I fixed the tires... Even pulling that same trailer FULLY LOADED in summer, at about 7k lbs total didn't make the trans light come on. Sounds like you might have something else going on. |
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| Author: | warp2diesel [ Mon Jan 25, 2010 7:52 pm ] |
| Post subject: | Re: Transmission Light..... |
Out in your neck of the desert, don't you have lots of corrosive alkali dust? I would un plug the plug going to the offending sensor, spray it with contact cleaner (Like Wurth), plug it back in and see if the problem goes away. If it does, fill the plug with the electrical grease to keep out the dust, and plug it back together. When I had the shop, other shops would start changing out parts and rack up the bill with no results. I would clean the plugs first and test before I ordered parts. |
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