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You are here: Experts > Industry > Transportation and Logistics > Automotive > my rpm
Expert: Sean Halliday - 10/1/2008
Question
i have 1995 camry 2.2 aut. transmission my rpm keep going up and down when the car on neutral or park after i drive for sometime what could it be
thank you
Answer
Idle control solenoid or a leak at the intake gasket.You will need to have the system vacuum checked by a mechanic unless you are familiar with how to do this.This will have to be diagnosed as there are many more likely causes of this symptom and i have told you 2 most common.Other reasons are,fuel pressure regulator,fuel pump,air mass meter,vacuum leak,egr valve or modulator,to name a few.
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