What causes your alero to idle high?

You have a 87 camaro the other day it backfired real loud smoke came out and now it wants to start but wont turn over? What is the basic warranty on the 2012 Jeep Grand-Cherokee? Accident 03 Yukon-back tire took the impact. After 2 alignmentsit was discovered that the frame was bent. It was fixed and aligned but still pulls to one side. Steering wheel crooked.Help with cause? Why would the reverse lock-out under the shift knob of a 1995 Ford Contour with a manual transmission not pull up causing reverse gear to be inaccessible? How do you access ECM on 1994 Buick Regal 3.8? What are caravans made out of? What is gm rear end part number 26007927? How do you remove the spider gear pin in rear axle on 1992 Chevy Tahoe Z71? How do you know if fuel pump relay on 1992 Chevy silverado is bad? Which is intake valve on Chev 350? What is 0.3125 as a fraction? What is the fuel pressure for a 1999 Chevy Tahoe 350? Where is the petcock for the transmission fluid on my 95 Saab 900s? Blown Head Gasket in a 1995 Suburban how can you fix it? Where is the oil filter 2006 trail blazer? How do you set the clock on an 87 Plymouth reliant le? Where is the fuel filter on my 1989 Dodge Ram 50 Custom 2 X 4 long bed pickup truck with a carburetored 2.6L engineand how do I replace it? How many mpg does a lifted 1985 Chevy s10 pick up get? When did Chevy start using sealed front wheel hub assembly? Where can you buy a rear defroster relay for a 2000 Dodge Stratus no auto parts stores carry them and I can't find anything on the net regarding them either?