|Originally posted by coltonandrew:|
Go out, start it, and tap the gas pedal. Does the rpm die down to a good range? If so, it's normal. Its just your car trying to warm up. You can over ride it by touching the gas pedal.
Vacuum Leak - If it's a 2.8, take the air cleaner tube off. Look in the bottom of the TB. You will see a hole about 10MM. Start the car and then put your finger over the hole. Does it idle down but keeps running? If so - you have a big vac leak - as mentioned above - EGR Tube, Cracked plastic vac line, etc......