Q: My 2001 BMW X5 won't start. I think it is due to power loss

asked by on

when i try to start engine it wont almost everytime. when it starts no power. i have changed fuel pump and still same problem

My car has 230000 miles.
My car has an automatic transmission.

Hello, the first questions to answer are "Are any problem codes set? Is your Check Engine light on?". Based on your observation of "no power", and your extended mileage, there are several problems likely that would result in "no power": your timing chain or valve timing components could be worn enough to affect timing and power. The catalytic converter could be clogged from lots of miles, and long term contamination. You don’t mention a misfire or overheating, but a blown head gasket could cause a no power situation, as well as worn piston rings. I would recommend having a Car Is Not Starting Inspection completed by a mobile, professional mechanic, such as one from YourMechanic, to diagnose this problem, get an accurate assessment of damage and cost estimate for repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My 2001 BMW X5 won't start. I think it is due to power loss

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: Q: High rpms and no acceleration

This may be a result of low transmission fluid or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various sensors such...

Q: 2010 BMW 528i - Having lean codes and P00bc for air flow too low. Smoke coming from the exhaust. Is it a CCV problem?

Hi There, This code is a generic code relating to the mass air flow sensor indicating that there is a lean air/fuel mixture. This can happen when the mass air flow sensor is dirty or faulty. I would suggest having...

Q: Battery change. Do you do computer reset after battery change?

Hi there: The ECU contains a small battery inside of it that acts as a back up when the battery drains or is removed; which ensures that data is not wiped away when the battery is replaced. There is no...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...