2001 Volvo V70 XC Q&A
2001 Volvo V70 XC Question: What could cause my car to shake and lose horsepower when accelerating rapidly?
I've only owned it for 4 months so I'm not sure about past maintenance. I replacedthe coils and spark plugs when iI got it. I felt it sputter a few times, like a misfire, so I took it to my Volvo mechanic. He told me the only issue he could find was low/dirty oil. So we did an oil change. It is still having the same issue. When I get on the freeway or speed up to go around someone the engine struggles and the check engine light flashes. City driving is perfect. I do get electrical fluctuations when I use my AC, so I stopped using it, but I still get the shaking on acceleration. I was thinking if I can get help in the forums I can tell my mechanic specifically what to fix so my car doesn't die. I love my car. Its been my dream car for the past decade. - jennjenn137
A flashing check engine light is a definite "Misfire" and a catalytic damaging issue as well. There are many variables that can cause a misfire. Its very broad, you can have issues with ignition, fuel, air intake, exhaust, timing issue to name a few. My advice is to have it diagnosed and tested by a reputable shop that works or specializes on volvo's. let us know once you figure out your problem. So somebody else with the same issue can be helped. :) - TristanReal
You should plug in your car to computer and it will show you what is problem - bendeton77
You just need a MECHANIC with a good scanner! Check, got to be one around,, not necessarily a Volvo tech! - pushrod