All,

I have a 99 SL2 automatic with approximately 78k miles. Recently, when I am at cruising speed (ex 40mph) and decide to press on the gas to accelerate, the engine will try to downshift and begin to shake, almost stalling. I have changed the sparkplugs but that did not correct the problem. Any help would be greatly appreciated.

thanks

Edited by: geramos

 

bump

Edited by: geramos

 

Does it actually downshift or is it trying in vain and not succeeding?

I have some other ?'s for you but need to get the above answered first.

Derf

 

It's downshifting pretty much in vain. What I have to do is take my foot of the gas a second or two and try to press the gas again. When going up a hill, I will try to press on the gas so it shifts to a lower gear but it does that shaking/stalling symptom. What I usually do is manually downshift to a lower gear and this kinda helps with the climb.

thanks