Hilux auto light coming on towing is this common?
Submitted: Tuesday, Sep 04, 2007 at 20:04
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This is our second hilux first was the SR 3L auto T/D 05 and on several occasions had trans fluid spu out the breather and also the light come on Toyota said they could not find a fault and only happens towing Jayco Eagle camper up hills.
Last weekend away in our new SR5 10,000km 13 deg outside with the same camper also auto T/D going up a long
hill the trans light came on pulled over smelt hot but no fluid, light went out and carried on, booked in for service and at another dealer they said they have never heard of it, just wondering has this happened to any other auto drivers.
Cheers.
Reply By: Member - Kiwi B - Tuesday, Sep 04, 2007 at 20:46
Tuesday, Sep 04, 2007 at 20:46
TW
Had a 95 Surf 3.0 (1KZ) and it would do the same thing if I was a bit slack shifting into low ratio in steep country, even with snow on the ground. The light is temp. sensing I think you'll find, and suspect that Toyo are pulling your leg when they say they ain't heard of it. Sounds like a trans cooler could be the answer.
Good luck,
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Reply By: Member - Uncle (NSW) - Tuesday, Sep 04, 2007 at 21:02
Tuesday, Sep 04, 2007 at 21:02
Our 3 litre V6 Pajero used to do the same thing, put another trans cooler inline so we were running 2, and that just about fixed the problem. It only ever came on up a very very long
hill, never once came on while in 4wd low range though!
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Reply By: awill4x4 - Tuesday, Sep 04, 2007 at 22:30
Tuesday, Sep 04, 2007 at 22:30
If you don't know what temps your auto trans are running under various conditions you really haven't an idea of just how hot the temps can get under load.
Of all the mods I've made to my GQ auto, by far the best is the addition of an accurate VDO trans temp gauge, I can tell just how hard my auto works under any conditions.
Regards Andrew.
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260394
Reply By: disco1942 - Wednesday, Sep 05, 2007 at 02:44
Wednesday, Sep 05, 2007 at 02:44
This is common with a lot of auto vehicles. If you are negotiating a long sustained climb you should manually select a lower gear to keep your engine revs above 3,000 RPM (if the max power is developed at or above 4,00 RPM) or 2,700 RPM (if max power speed is below 4,000 RPM.)
PeterD
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Reply By: traveller2 - Wednesday, Sep 05, 2007 at 08:15
Wednesday, Sep 05, 2007 at 08:15
It is very interesting watching the transmission temps under different conditions. Highway use in my vehicle sees usually the lowest temps, off road in sand especially can really warm it up.
Towing does warm it up a bit especially on long steep climbs but the conditions that really heat the fluid up the most are descending steep hills in low range 1st or 2nd where the torque converter is slipping as the vehicle is held on compression.
Trans fluid blowing out the overflow as mentioned in earlier posts is not a good
sign and is one of the main reason for the Jeeps getting burnt out on the sand like the few earlier in the year at
Stockton.
Boiling ATF being dumped all over a very hot exhaust if it catches alight is near impossible to extinguish with what is readily available in most situations off road.
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260423