2002 pontiac grand am gt hesitate

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lajoya87

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My 02 grand am gt Hesitation when Accelerating I change the pvc valve and tps and fuel filter, air filter, temperature sensor , I clean the mass air flow sensor too and stills hesitate ?
 
Do you have a check engine light on and if so what is the code/s? Did you do a fuel pressure test?
 
How do you pressure test the fuel pump and now the fuel pump is making a loud whistling noise ?
 
You rent or buy a fuel pressure tester and attach it to the fuel injector rail. Sounds like you have a pump problem developing.
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The pressure is low so you recommend to change the fuel pump?
 
If you do a fuel pressure test and the pressure is low, since you already changed the fuel filter, you change the fuel pump.
 
Where is the canister vent valve solenoid in my 2002 pontiac grand am gt 3.4
 
In the back under the car near the gas tank.
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And the purge vent solenid is the one that goes in the engine??
 
I change the Canister Purge Valve and the camshaft position sensor and still hesitate when you stop in a stop sign then yo accelerating sould I check the
Fuel Pressure Regulator?
 
I change the the purg valve Solenoid and the camshaft position sensor and still stalling when I stop in stopsing and when I accelerate should I chek the Fuel Pressure Regulator
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1. Do you have a check engine light on and if you do what is the code. Autozone does free code look ups.
2. Did you do a fuel pressure test?
 
I whent to autozone and this Code p0327 came up and it say that I have a low fuel pressure and the knock senaor what should I check first
 
If you have low pressure and you already changed the filter, change the pump.
You also have to correct the knock sensor issue but I would change the pump first.

http://www.obd-codes.com/p0327
 
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