Hi Scotty, i need your help because my car hesitates when i accelerate and i have put in new spark plugs, new coils. In the scanner says that is missfire on all 4 cilinders, but i dont know what is causing this and when im on a stop the car also jerks also using the AC is worst but not very frequent.
Go to a Volvo specialist (I’d avoid the dealer because they tend to not be knowledgeable and over charge but your experience may vary)
The 1.9T (B4194T) is a complex engine, the typical issues at your mileage that can cause this issue are usually either the fuel pump, the engine control unit and a list of sensors that are known to fail.
Also on the 1.9T engine you have a timing belt, do not forget to replace it at 90,000km (56,000 miles, or what ever the owners manual suggests) as sometimes these do fail prematurely - and when they do they bend valves and destroy your engine completely.
