I've got a 2000 GTP and I have been having some trouble with it lately. Basically it doesn't always want to start and sometimes will give the "chuggle" effect when giving it a little more gas when cruising or going up a hill. I've narrowed the problem down to the fuel system. I'm only getting 40-43 psi with the ignition in the start position and about the same with the car running. When you pull the vacuum line off the pressure increases to around 50 psi. I've already swapped the regulator out with one I had from my previous GTP and no difference. Then I tried the fuel pump resistor bypass and no difference. Next, I pulled out the fuel pump and checked the strainer and tank for dirt. Once I put the fuel pump back in the fuel pressure gauge bounces 40-44 psi when the car is running. I'm thinking the fuel pump is going but I'd rather not replace it if I don't have to. Any suggestions or help would be appreciated. Thanks!
