Skip the auto shop - Our mechanics make house calls

Q: I fixed the crankshaft sensors and cam sensor and it's still pulls up the crankshaft code can it be my ecm

asked by on

I replaced my crankshaft sensors and my cam sensor on my 2004 Impala 3.4l and it's still pulling up the crankshaft code and when it gets hot it's hard to start till it cools down then it starts could it be my ecm

My car has 135 miles.
My car has an automatic transmission.

You will need to monitor the crankshaft sensor input to the ECM to see if the signal is correct or going away when it gets hot. This is caused when a sensor is not producing a strong enough signal or when the sensor is too far away from the sensor ring.

Perform the test and also make sure the sensor is correctly positioned as close to the sensor ring as possible. This engine had two types of sensors for this year. There is one on the side of the engine block and another behind the crank pulley. Make sure that the pulley sensor ring is not bent and the pulley itself is fully seated.

If you need some assistance with these checks, consider contacting a qualified mechanic who can diagnose the trouble code and make the necessary repairs to your vehicle.

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
  • I fixed the crankshaft sensors and cam sensor and it's still pulls up the crankshaft code can it be my ecm

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: Stabitrak came on

I would recommend having an engine diagnostic performed on your vehicle by a qualified technician. This inspection would start by determining what trouble codes have been stored in the vehicle's PCM. Once these trouble codes are determined the repair procedure...

Q: Door unlocked alarm, no power window or door lock on driver door only, interior light comes on with L turn signa

Hi there. In general, wiring harnesses are sold by the manufacturer as a whole harness; not individual wires. It is much easier, cost-efficient and safer to replace the entire harness if it's determined that it is faulty and the source...

Q: Difficult startup, on warmer days and after short distances

You may have an issue with your fuel pressure regulator. The fuel pressure regulator is responsible for maintaining a certain fuel pressure for the engine under all conditions. Due to the high heat that your engine is experiencing, your fuel...

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...
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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.