What causes a transmission to smoke after about 10 miles?
08-18-10, 12:22 PM
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Lead Lap
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What causes a transmission to smoke after about 10 miles?
Alright so I swapped a transmission about 2 months ago into my sc400, the trans was said to only have 108k miles and work prefectly, well once I installed it, I found that it leaks from the bell housing, not a super bad leak though. Well since I started driving it I noticed that after 10 miles it begins to smoke quite bad, it smells like trans fluid. I'm just not sure what causes a trans to smoke like this, it's really bad, it leaves a cloud behind me. The trans shifts fine, runs quite smooth, but it begins to whine when it starts smoking and gets a bit of a vibration.
Am I ****ed or is there something I did wrong or forgot in the swap? and yes it's full of toyota ATF type 4 from the lexus dealer.
Am I ****ed or is there something I did wrong or forgot in the swap? and yes it's full of toyota ATF type 4 from the lexus dealer.
08-18-10, 12:29 PM
#2
If it's leaking from the bell housing, I would guess that it's leaking from the front pump seal or torque converter. ATF could be getting on the exhaust and cause the smoke; from the amount smoke that you're seeing, it's probably something else. Can you tell where the smoke is coming from when you look at the tranny? Front or back?
08-18-10, 12:30 PM
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Lead Lap
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Also forgot to include that I had to use a peice of heater hose to connect the coolant lines due to the way the guy who sold me the trans cut the lines from the other car.
08-18-10, 12:33 PM
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If it's leaking from the bell housing, I would guess that it's leaking from the front pump seal or torque converter. ATF could be getting on the exhaust and cause the smoke; from the amount smoke that you're seeing, it's probably something else. Can you tell where the smoke is coming from when you look at the tranny? Front or back?
08-18-10, 01:03 PM
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What color os this cloud of smoke? Is it possible that your "coolant" hose made from heater hose isn't up to the pressure and is squirting a bit onto the exhaust? That would pretty much explain it all.
08-18-10, 01:35 PM
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Lead Lap
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It could be but the smoke usually comes up on the drivers side, when I get home I'll get under the car and check the exhaust for burned ATF marks.
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09-01-10, 07:06 AM
#9
Lead Lap
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semi stripped drain plug bolt combined with a front transmission seal leak spraying the exhaust at moderate to high speeds. Not my problem anymore.
Ninja edit: I fixed the drain plug and minimalized the leak by adding enormous amounts of lucas ATF stuff, which works GREAT.
Ninja edit: I fixed the drain plug and minimalized the leak by adding enormous amounts of lucas ATF stuff, which works GREAT.
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