2003 Buick Century Questions

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Heard it might be the control panel or the gears in my dashboard that are giving out to open something that has to do with the cold air or another problem someone told me is that theres a loose wire maybe. I also have lots of water leaks but none from radiator
She has brand new tires and alignment, oil change, replaced plugs and wires, changed transmission fluid and filter along with fuel filter. If I stop accelerating it stops. It was worse but after the changes has lessened she also only does this when warm. She has over 170,000 miles as well. Any ideas would be greatly appreciated.
Not sure of the location. either under the dash by the gas pedal or behind the glovebox. tried youtube, but not my exact year.
I have a 3.1 buick century 2003, I have no check engine lights on, I have narrowed the problem to the main engine wire harness/connector/fuse box as the possible issue, if I touch the engine wire it sometimes causes my car to stall, and or cause the fuse box to make popping noise. It is no specific spot where i move/touch the wire that makes the engine cut off, I can touch by the connector at the top left of the motor by the alternator and or by the air filter box and sometimes it doesnt do it every time.and it will cut off on its own without the wire being messed with, is it a connector? The actual wire harness itself? Please help
It starts overheating after 10min of driving then I start to hear bubbling noises. I’ve checked for leaks an nothing fans work fine
I’ve checked water pump but no leaks or no noise.
when it is cold outside under 35 degrees i have a squeal more so when i turn to the right when i turn to the left it seems to go away it was doing it when i got the car 3 years ago and has not quit even when i have changed the hub ass
Blows cold air until you step on gas. Blows hot while giving gas, let off gas, blows cold again.
I have done everything i can think of no codes car runs great but i cant get the catalyst or egr monitors to run
unsure but running the ac on the car does not overheat or spike its in the center but once its off it goes up and when i turn off the car or on park i can feel the heat underneath the car, what could it possibly be?
How long have you had this problem? for over a week
What does it mean your on board computer is not ready to determine ther status of the pollution control system. I had a new catalytic converter put on.
Changed fluid and filter 4 times run good in start off but won't shift into 2nd making plinking sound what wrong
I just bought new windshield wipers,but the next day the passenger side wiper stopped working. I can use the left but need a local cheap price and place to repair.
Replaced master cylinder. Air in lines and unable to bleed them without replacing calipers. Need to get inspected for registration renewal.
The car will not accelerate correctly. When pressing the gas the engine reves but hardly picks up speed. Even worse while going up a hill.
The car gets warm not hot when I idle. Mechanic said fan not working. Could it be a fuse only and it would start the fan again. Worth trying first? Car has 192000 miles but drives great.

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