Hi. My 2006 Volvo S60 turbo has about 116K miles and noticed a couple times when I punch the gas to accelerate quickly (like to pass someone on the interstate) that it will make this quick jerky thing (as though I ran over some rumble strips). I normally drive like a grandma so this has only happened a couple times. Today I was on the interstate and decided to test this out and sure enough it would quickly bump-bump-bump before the gas/acceleration kicked in. It never stalled, but now I am paranoid.
Also, it occasionally “feels” like it takes the car longer than normal to start. There is no pattern to this. It will happen first thing in the morning, but I have noticed it more often when I stop to drop my son off and get back in the car. I will crank the key and the RPM dial will shoot up twice really quickly and then be normal.
Maybe you should also know that when I first got the car, I filled it up with gas and started driving and it died. Thankfully, we checked the fuses and the fuel pump fuse had burned out so we changed it and all was right again.
I bought this as a high mileage car (60K) in 2007 and have not done much to it since (air filter, oil, tires, brakes). Yes, that means I have not gotten my transmission fluid changed or any recommended dealer maintenance.
Please help. I am surely over thinking this.