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

oil fouling spark plugs

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Old 03-26-06, 04:27 AM
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nosbig
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Angry oil fouling spark plugs

Have a 1991 celsior (ls400) Oil is fouling the spark plugs and also was found in the plastic tubing comung from the Trottle body. Took it for a spin and had a warning light that showed the muffler being hot. Any suggestions or advice?
Old 03-26-06, 04:32 PM
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ZULU789
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Default Oil fouling spark plugs

Generally means valve guides or seals worn out or piston rings worn (Basically oil from the engine gets in the combustion chamber from the top portion, valves, or the bottom ,piston rings ) Other things to check:See how is your oil consuption, check your tail pipe for smoke ,check compresion on cilinders with spark plugs fouled.... Hard to tell how many miles on the car?
Based on the year probably in the 200K or more. Good luck...
Old 03-26-06, 08:02 PM
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nosbig
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Thanks for the info. Car has 109,000 miles. Hard to check for consumption as car has difficulty getting out of first gear with all the shaking. Car was laid up for about 2 years. Don't know if that helps any. If so please let me know. Trying to avoid expensive repair.
Old 03-27-06, 01:40 AM
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PureDrifter
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the fuel could have gelled up?

if its been sitting that long id def replace/flush the oil, coolant, tranny fluid, and if i couldm the gas tank.
Old 03-27-06, 02:12 PM
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Agreed with Pure...if it's been sitting change the fluids. Might want to do a compression check on the cylinders...at least you will have an idea how tired the motor may be. You'd hate to start making small repairs to find a low cyinder or...

No oil in the coolant? The dreaded blown head gasket.
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