Skip the auto shop - Our mechanics make house calls

Q: My car will not start - 2001 Nissan Sentra

asked by on

I installed a used engine with 70,000 miles on it. The car started and ran fine I installed a new battery. I parked car to do other repairs when I tried to start it, it would not turn over I tried to jump it no luck I disconnected the starter from the harness and used a switch hooked up to starter solenoid to start car, the engine turned over but did not start I hooked the starter back up to the harness and it did not start or turn over when I turned the key, it gave me the same whrring sound. What could be my problem

My car has 200000 miles.
My car has an automatic transmission.

Hi there:

It’s possible that the starter is not fully engaging with the flywheel either due to the flywheel not being installed correctly during the engine swap, or the starter not installed correctly. It’s also possible that something in the ignition system became loose after the initial starting and is the source of your issue. There could be multiple mechanical or electrical problems causing the Sentra to not start, which is why you might want to have a mobile mechanic come by to complete a car is hard to start inspection so they can help you diagnose this issue and recommend the right repairs.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Nissan March 14e.Starts ,shakes and stalls.I have to support it by pressing the gas. Stalls too when I brake in drive or reverse

Hi There, It sounds like your car may have a dirty or faulty idle air control valve causing it to stall at low speeds or when decelerating as you describe. The idle air control valve is a small valve on...

Q: My car has a diagnosis code of P1381 and needs a new VCT solenoid.

Sent billing question to CS for replacement of the variable camshaft timing control solenoid and an oil change.

Q: Car losing power as driving

If you were driving and the engine started to overheat due to a stuck thermostat, then it would overheat in the first few minutes of running the engine. If you were driving and everything was okay and driving more than...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...