20 Most Recent 2007 Chevrolet Uplander LS Minivan - Page 3 Questions & Answers

Replace the switch.

Probably dirt, Just take a blade and try to clean around it. Or take out the plastic where the switch is and clean from the inside

using a mechanics stethoscope check each running bearing while the engine is running. The normal noise will be a base rumble but if you hear one that is different to the others ( a series of knocks ) then suspect that as failing. The noise may be from the belt itself as it may be cracking or going hard and in need of replacement

Have someone push down and pull up on the hood while you pull the handle inside the car. Once you get it open, turn the bump-stops (one on each front corner of the area where the hood lands) counter clockwise to raise them. This should add some more pressure to help the hood "pop." Also, put some oil on the latch once it is open.

Follow the top hose from the radiator to the engine. IT should be where that hose connects to the block on the engine.

http://www.youtube.com/watch?v=8kdV7sbpMds

Never replaced a throttle body in 35 years of working on cars. Here's my advice don't go to autozone to fix your car, they sell parts not smarts. Did they tell you a code # or something. Usually engine performance problems stem from fuel or ignition problems. Does the engine perform ok? Let me know.