My 95 Corolla has always needed a tune up shortly after being serviced. But now, my husband is driving it 40 miles back and forth to work, as the lowest mpg car, but it is hesitating and missing. There is no obvious cause, except if he stops at a light or has to climb a hill, it is barely able to make it up and over. He has changed the spark plugs, air filter, and oil filter with 10W30 oil every 3000 miles. Next up is a fuel filter, spark plug wires, rotor or distributor cap. as it is a 13 yr old car, we do not want to pour too much more into it, but at 124K miles, we think there is more life left in it. What do you suggest? The Check ENG light came on for 80 miles, but went out before we had a computer code scan. The high cost of driving this car, on only two cylinders without warning at 60 mph at times is killing us. Please help!
I suggest that you bring your vehicle to a qualified technician to have it properly diagnosed. You may have a very simple problem, that requires a quick fix to get it running to par again. It is also possible that you have a pretty significant problem, and it's not worth fixing. Even if the check engine light went out, it's still possible to find out why it was on in the first place. In my opinion, it's worth spending a few dollars to get the correct information than to keep spending money on parts that do not need to be replaced. Good Luck.
〉 Answered on Apr 11th, 2008 by Suzanne Grego, Technician at City of Philadelphia Fleet Management