Skip the auto shop - Our mechanics make house calls

Q: 02 Volvo s40 turbo. Engine was knocking then died. Now it spins really fast won't start

asked by on

My car was knocking. Checked oil ...even changed the oil Started to work and the car died. Now it spins real fast like it has no compression. Any advice?

My car has 135000 miles.
My car has an automatic transmission.

This sounds much like a potentially blown head gasket. I would recommend performing a compression leak down test if you have the proper tools. All cylinders should read at least 180-215 psi. The knocking may have been related to anything that could have caused this such as a bent valve or any other broken valve train components that may have caused the car to die. I would recommend having an expert from YourMechanic come to your home to diagnose your cars inability to start issue and repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  • Home
  • Questions
  • 02 Volvo s40 turbo. Engine was knocking then died. Now it spins really fast won't start

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My car won't move til it is warmed up. Does this mean I need a new transmission

If the transmission has not been serviced in the last 3-4 years, a transmission service MAY help resolve the situation. I say it may help because fluid condition may be effecting fluid pressure within the transmission and it is changing...

Q: Do I have a blown fuse that would cause the engine not the crank?

Hi there. If you removed a fuse and tried to crank the engine over without it, it's possible that it may have damaged an electrical relay to the starter or perhaps blown a fuse to the starter relay. It's also...

Q: Battery

Hi There, It sounds like you may have a dead battery resulting in the starter struggling to produce enough power to turn the engine over. As the starter is engaged, this produces a substantial drain on the battery eventually resulting...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.