Question about 1997 Lexus LS 400
I CHANGE THE DIS AND SPARK B AND WIRES AND COMPUTER AND STILL THE SAME SMOKE WHITE AND SMELL GAS
Have a compression test done as I suspect a head gasket or cracked head
Posted on Mar 28, 2014
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Posted on Jan 02, 2017
Is this car driven in a daily basis?
Check with your family member on DO NOT TOP OFF THE GAS TANK.When refueling the top off (excessive gas) will eventually destory the vapor control valve. When the valve go bad the vapor excape to the charcoal clean under the hood.
It's normal to have lite white smoke during the first 15 minutes of warm up. Pay close attention to above normal operating temperture and white smoke after 15 minutes of warmup/drive time.
To pin point a blowing headgasket you will need
1)coolant system compression tester
2)chemical reaction test for combustion test gas
If it's the org. engine from 1994,with over 150,000 then blown headgasket is a good possiblity.
Tow it to the shop and let the pro to do the coolant pressure test and combustion gas test.
A full head gasket job with head re-surface (if it can be re-use) is worth it.
Shop around on well estiblished independent shops.
Fix the blown head gasket at the first stage of failure can save you thousand on a head replacement.
Posted on Aug 23, 2009
The most common cause of blue exhaust smoke is oil leaking past engine seals and into the cylinders where it then mixes and burns with the fuel. Oil leaking into the cylinders can cause a rough idle, misfire and fouled spark plugs. So best bet is to have a local repair shop inspect for internal oil leakage.
Posted on Oct 16, 2012
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