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It cranks no start, codes P0336, P0440 and P0327

Tiny
ALLOYD2
  • MEMBER
  • 2002 CHEVROLET IMPALA
  • 3.4L
  • V6
  • 4WD
  • AUTOMATIC
  • 208,800 MILES
New fuel pump, new wires, new spark plugs. It ran hot stop working then I got the thermostat replaced. Then it started to crank slow. It does read codes p0336 p0440 p0327. Please help
Friday, June 7th, 2019 AT 12:23 PM

8 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

The 327 and 336 are for both crank sensors. When you crank the engine, does the tachometer move up a little?

The 440 is for an EVAP leak in the EVAP system. You need to have a smoke test done to determine the leak.

https://www.2carpros.com/articles/evap-system-code-repair

Roy
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Saturday, March 6th, 2021 AT 1:34 PM
Tiny
ALLOYD2
  • MEMBER
  • 5 POSTS
What do you mean by tachometer?
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Saturday, March 6th, 2021 AT 1:34 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The gauge that engine RPM.

Roy
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Saturday, March 6th, 2021 AT 1:34 PM
Tiny
ALLOYD2
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Yes.
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Saturday, March 6th, 2021 AT 1:34 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, the crank sensor is sending a signal.

You need to check for spark and fuel pressure next.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Roy
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Saturday, March 6th, 2021 AT 1:34 PM
Tiny
ALLOYD2
  • MEMBER
  • 5 POSTS
No, I meant and also my battery keeps going dead.
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Saturday, March 6th, 2021 AT 1:34 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I never asked about that.

So the gauge does not move?

If the battery is dead, it needs to be charged to full charge. That is 12.6 volts.

https://www.2carpros.com/articles/how-to-charge-your-car-battery

Roy
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Saturday, March 6th, 2021 AT 1:34 PM
Tiny
ALLOYD2
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  • 5 POSTS
It was the crankshaft sensor started right up.
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Saturday, March 6th, 2021 AT 1:34 PM

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