I had all my spark plugs changed at Canadian Tire Automotive centre six weeks ago. Very expensive. However, I noticed over the last three days that my Lexus ES 300 (1998) would "hard start" each morning and just yesterday, after running errands for over an hour, it hard started at various intervals. Is this possibly the battery that might be dying?

SOURCE: I WILL LIKE TO CHANGE

I need to change spark plugs on lexus sc 300 1992

SOURCE: '98 Lexus ES300 Won't Start--But Has New Battery!

If your is exhibiting the same signs as a dead battery it really sounds like your alternator is bad. If you are handy, you can remove the alternator and take it to an autoparts store like autozone and they will test it for you. This is not a hard job to do, usually 2 electrical connections, 3-5 mounting bolts and you have to pop the belt off. Just reverse it to install a new one. Good luck! - Nick

SOURCE: Failed spark coils on my 1999 Lexus ES 300.

exposure to heat, weather,salt in winter and water make them more susceptible to failure I would change them knowing that my others failed

Testimonial: "Thank you for your quick and informative response."

SOURCE: Starting problem for 1999 Lexus GS300

make sure the air filter lid has been put back into proper place, if they left it loose the engine would **** more air while trying to start, so you need more fuel to balance it out.

Testimonial: "Thanks a lot for your help!"

SOURCE: '92 Lexus Es 300 - White smoke from exhaust and smells like gas.

ITS THE ECU. misfiring and white smoke from the exhuast THAT SMELLS LIKE GAS is an ECU problem. let it run, and the "white smoke" will condense in the muffler, get a little on a stick and try to light it. it will. its gas. replace ur ecu. (i have had this problem already on same car)