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Pat Grindharderthenyou

New member
Hi my name is Patrick M. and I have a 2002 pontiac grand prix se 3.1L. Now I been having problems with it. To start the Crank Position Sensor, Knock Sensor, and fuel pump had to be replace. Because I was driving the car I cut off the engine, later on got back in to start it and it wouldn't start. Before I replaced the three parts I mention earlier. So when it wouldn't start the first thing i did was replace the spark plugs and wires. It started up and ran but would cut off when stopped at red lights and the RPM gauge was jumping. The check engine light came on , so I took it up to auto zone and it had the two error codes for the Crank Position Sensor and the Knock Sensor. I had them replace and then the fuel pump wasn't sending enough gas so I had it replace. Now it's getting enough gas but it still won't start. I've Checked all the fuses in the main fuse box and the fuse box in the glove compartment. And none of them is blown. Any help or advice will be helpful if there is anything else I should check.
 


I have check all of the fuses in the main fuse box under the hood and the fuse box in the glove compartment. I had a mechanic come by and look at the car. He checked the main fuse box and the coil pack and said it was getting power but he mention something about a harness.
 


Are they autozone/aftermarket crank sensors? Only use GM sensors.

Yes new or used pcms have to be programmed with a tech2


Sent from my SPH-L710 using Tapatalk 2
 


The two engine codes was P0336 & P0327. I replace the knock sensor and the crank position sensor in the back of the motor. Do I need to rep"ace the crank position sensor behind the harmonic balancer?
 


Put a pair of visegrips on the flywheel or put a breaker bar on the bolt and crank the engine over and it'll break loose.
 
Well both the Crankshaft Position Sensors have been replaced and the Knock sensor have been replaced. Now both engine codes are gone (P0336 & P0327) but the car still won't start. When the mechanic replaced the crankshaft position sensor behind the harmonic balancer, the mechanic said that the sensor connector leading to the engine two of the three wires came aloose. So he replaced the connector and the car still won't start. The only way it starts is if you spray starter fluid in the intake. He asked me if the car had a anti theft on it, and i told him only the old factory radio. But I replace that when I first had the car and I had no problems before. Could it be a loose wire or the fuel injectors or something. I hope he didn't get any wires crossed when putting the new sensor connector on. Sorry to bother people but I have loss two jobs because of this. :(
 
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