Q: Why is the car losing power and not accelerating? 1995 BMW 318is

asked by on

So this has been going on for the past two weeks I start my uncles bmw every monday because of street cleaning so I start the car up and I let it sit for a little bit so the car warms up as soon as I push the clutch in and let off slowly and get on the accelerator and as soon as I get to 2000rpm the car bugs down and starts to make a noise like Im dragging something heavy behind the car and as I let go of the accelerator and let the car roll and as soon as the needle goes below 2000rpm the car stops making the dragging noise and car starts to gain power back and this is in every gear even reverse I replaced the oil filter, fuel injectors, fuel rail, and fuel pump and I still cant diagnose the problem I even replaced the Catalytic Converter and it didnt change anything the mechanic used a OBD 2 sensor and it didnt pick up anything so my conclusion is could it be that I need to replace the oil pressure sensor so the car stops losing power on acceleration? Please help.
My car has a manual transmission.

Hello and thank you for contacting YourMechanic. Check the ground wire from the main engine to frame ground to the right side engine mount. If this wire is corroded or loose, this will cause the engine to loose power on acceleration. Also, check the throttle position sensor (TPS) for any damage or loose wire connections. If the wires are all in good condition on the engine and the TPS, then I recommend replacing the TPS. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from YourMechanic, to diagnose the vehicle’s loss of power and proceed with any needed 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. Why is the car losing power and not accelerating? 1995 BMW 318is

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: Truck goes into limp mode while driving

Hello. The P0068 diagnostic trouble code is an indication that there may be an issue with the manifold absolute pressure (MAP) sensor/mass airflow (MAF) sensor. The P0016 diagnostic trouble code is an indication that there may be an issue with...

Q: Many issues with the car. Can a clogged catalytic converter cause transmission issues?

The catalytic converter has very very little to do with the transmission. The catalytic converter will keep the engine from being able to "exhale" and can cause engine problems and damage if faulty, but it wont cause direct transmission issues....

Q: seatbelt won't release

Hello. I am not aware of any way that you could unlatch the seat belt without damaging it. You may be able to forcibly unlatch the seat belt and have it work properly afterwards, but this is no guarantee. The...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
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.