1990 Pontiac Bonneville LE | 110,000mi |
I've had this car for about six months now and it has always run great. The other day it was running fine and I shut it off momentarily to run inside a friends house. When I started driving down the road I notice it was having trouble accelerating, then it started bogging down and running like it was not getting fuel.
I had just put gas in it so I figured that it was just bad gas. The next day I was driving and the fuel pump started making a whining noise, so I figured I needed to replace it. I ended up replacing both the fuel pump and the fuel filter as well, figuring that it was best to do both.
The crazy thing is that even with a new fuel pump, it is still making the whining noise, and the condition has worsened. Now it's next to impossible to keep it running, and it is backfiring and acting like it's out of gas, even though it has a half tank.
I know that it is getting gas because there is a valve on the line and when pushing it down gas squirts everywhere.
Is there a sensor or something that could be causing this? One thing I have noticed is that in seems to run a little better and actually stay running if you unplug the map sensor. I just want to be certain that this is the problem before I go shell out another $40 for a map sensor. (I'm already out $80 on the fuel pump and filter)
Tuesday, January 15th, 2019 AT 4:51 PM