LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Uh Oh! Sulfur smell

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Old 12-17-10, 05:10 PM
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Sololock
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Default Uh Oh! Sulfur smell

i just purchased a 94 Ls400 w/ 200,xxx miles.
ran great for 3 days then the fan bracket bearing started making noise.
Replaced that and the timing belt.

now when i start the car, i get a sulfur smell and a lot of white smoke.
i pop the hood and it smokes faintly from near the firewall.. Not a lot just a little.

it will rev great with no misfire in neutral but i go to drive and the pedal can be on the ground but wont really go fast. it does give a little pop hear and there. Could this be a gas issue? i think the last owner put 89




EDIT: so i started taking the spark plugs off one by one. Left (driver side) checked out all good. Right (passenger side) took off #2 and it shocked the **** out of me but no change in RPM. going to replace the distributor and see how things check out.

Last edited by Sololock; 12-17-10 at 06:06 PM.
Old 12-19-10, 08:24 PM
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willhickey
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any check engine light?
Old 12-19-10, 08:24 PM
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exhaust leak
Old 12-20-10, 08:33 AM
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3UZFTE
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If it is just one cylinder than is misfiring, I would suspect the plug wire or plug as well, I would doubt it's the dizzy. A misfire is definitely causing the sulfer smell. Good luck.
Old 12-20-10, 12:47 PM
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Sololock
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Originally Posted by 3UZFTE
If it is just one cylinder than is misfiring, I would suspect the plug wire or plug as well, I would doubt it's the dizzy. A misfire is definitely causing the sulfer smell. Good luck.
but it all worked before i did the timing belt.
i checked and double checked that i was always at TDC. even still if i rotate the cam pully to 0 mark, cam pulleys always check out.

leaving to go get a used ignition coil and dizzy
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