What is your question?
·
·
What is your question?
Shakes extensively when accelerating between 25 & 50 mph, but also at other speeds. Sometimes it shakes so much it feels like a flat tire. Also, shakes when using the accelerator or cruise control to maintain speed. Recently noticed a loud clunking noise, which usually seems like it is coming from the rear of the car. Shaking just started. The loud clunking started @ 2 weeks ago, and occurs everytime I drive, but not continuously. Gas mileage has decreased

Check engine light is not on. Last time it was on about 6 months ago it was for a minor issue. Service engine soon light has been on for a couple of years, well over 50,000 miles. Two Chevy dealers and 2 independent garages have found no issues and have been unable to turn it off.
Thank you, will do. Should I have both axles checked? Also, about how much should they charge to check them Would this also cause extreme shaking sometimes when I brake?
Thanks for your help. I'll get the axles checked out, I posted on this site because the I thought this new problem with the clunking noise and shaking when using the accelerator could be a major issue. I knew the rear brakes were due to be replaced soon, so I'll get that done too. Thanks again. Now I can go in with an idea of what needs be checked out first.