My '95 SE shudders & vibrates when in overdrive or high gear when car is under load, like when going up a hill. It doesn't take much of a load to start the shuddering. I get it to stop by stepping on the gas so it downshifts, or letting of the gas, then stepping on it again so it goes into a lower gear and gets the RPM up. I'm assuming it'* something in the transmission!? It was doing it when I got the car at 122,000 miles. It now has 143,000 miles. Anybody have any idea what this might be? Thanks.

Do you have a scantool?

shudders in front or rear??

The whole car just seems to shudder. Not like a tire out of balance. Hard to describe, shudder, vibration, rumbling, etc. I don't think it'* the engine pinging, seems to be too heavy of a noise for that. I think it'* the transmission rumbling somehow!?

I don't have a scan tool. No light comes on when it'* doing it. Excuse my stupidity, but what is the SES light?

Never mind. SES = Service Engine Soon, right?

Yup.

A scantool would save your butt right now. Too many variables. How old are your basic tuneup items?

I changed the spark plugs about 17,000 miles ago, nothing else was changed. I have not replaced the fuel filter, don't know if it ever was.