Help please i got sc 400 doesn't get hot when its on idle even do how long but as soon as you drive 2,3,4,5 miles goes to red line i dont have leaks somewhere still have know idea why i did try to change thermostat,reservoir cap and fan is on working condition boil water in reservoir deep stick and valve cap is clean i dont have no white smoke comming out at d tail pipe replied is appreciated tnx
Thermostat will prob need changing, idling engine can run ok without the thermostat opening but when the engine is being used the temp will go up. but with out the thermostat opening the water will not flow round fast enough to cool down.
SOURCE: alot ofwhite smoke coming from tail pipe
Not sounding good if white smoke, usually indicates coolant into cylinders via bad head gasket or head, maybe intake leak, or piston rings gone. You, or someone didn't overfill oil by chance did you?
What's mileage & did you have any warning signs or did this just happen all of a sudden.
SOURCE: 2000 GS300 LEXUSVSC OFF AND CHECK ENGINE LIGHTS KEEP COMING ON
disconnect negeative (-) battery cable for 20 seconds....reconnect and start car. Check engine light should now be off. I
SOURCE: What is the spark plug gap setting for a 2000 Lexus ES300?
proper gap is 1.1mm (.043in.). Did your car overheat??
SOURCE: 1994 Lexus ES300 large cloud of smoke.
Valve stem seals can cause this problem, but normally only when first started. Oil in the rocker cover seaps through the oil seals into the cylinders and is burnt up on start up.
Try a "STOP A LEAK" additive and it may reduce the oil consumption and smoke.
I found some on e-bay and it worked on my tired old escort. It even stopped the rattling tappets.
SOURCE: i have lots of white smoke coming from tail pipe
White smoke is either steam or
coolant. Oil smoke is blue, fuel is black. The smoke
is water or coolant boiling and then coming out the exhaust as vapor.
If the weather is cold, water will condense in the exhaust system after
shutdown, then come out as steam on startup. This is OK. If you see the
smoke
after driving on the highway for an hour or it is an all-the-time
event, you have a problem.
If you have a problem, most likely, at this age, it is a leaking head
gasket. Possibly the cylinder head is cracked. Valve problems are
possible but less likely. Keep track of how much coolant you add to
keep it at the full mark. Obviously, this is expensive to fix.
The problem was bad/worn valve stem seals which
allowed oil to seep into the cylinder heads when the engine wasn't
running and burn off when the engine was started creating the white
smoke.
If it is valve stem seals, they are not too expensive to replace
however I would suspect your mechanic will want to do a complete valve
job which is a little more costly.
Hope thos help (remember comment and rated this).
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