ok when i shift into 3rd gear(this started 3 mights ago) their seems to be a bumping noise coming from my hodd/engine(cant really tell) but it goes away when i am at like 20mph's and slowing down.... also when i am in 1st or 2nd and when i take it out my car just dies, and when i try to start it up it wont start sometimes i have to wait for a few seconds...its really pissing me off... anyone have any thoughts?? could it be the dizzy?