Praise the Lord! After replacing the turbo boost solenoid and the MAF sensor with no success, I replaced the spark plugs and it fixed the issue. Who knew? Recap: Car ran fine until I used the Cruise Control. Started hesitating on medium to full acceleration. Had this problem a couple of years ago ...

Changed MAF sensor No change. Still getting hesitation after running for a bit. Weird thing, if I shut the car off and restart it, it will run fine for a while. Possible electrical?

Thanks ggleavitt! Good information. The battery and fuel filter are newer. I swapped an older turbo boost solenoid I had kept around and it ran worse. I ordered a new Bosch MAF sensor and am about to dig into the plugs. Could you give me clarification on the PCF hose being rubber or plastic? Thanks

Hi. My wife’s 2006 2.5T XC90 was running fine until one day when I used the cruise control. From that point on it now hesitates/shudders when I give it gas. Worse if the air conditioning is on. This happened before and the garage fixed it by replacing the turbo boost solenoid. So I replaced the ...

Hi all, newbie here. I have a 2006 xc90 2.5T. It was occasionally "stumbling" at idle and after scanning through this forum, I decided to purchase a new turbo valve. The same one that was on mine. Yahoo, the rough idle went away but now it hesitates on acceleration. So…I put the old one back in and ...