Car Reving By Itself??
28-Dec-2004, 10:12 AM
#1
Registered User
Thread Starter
Join Date: Jan 2004
Location: Glen Abbey
Posts: 174
Car Reving By Itself??
Hey guys,
be-lated merry xmas to ya.
I started my car yesterday leaving best-buy (01 Civic) and it began reving vigourously between 1000-4000rpm. It does not go away either. Have any of you had this type of problem before? With all the cold weather we have been having and not to mention the amount of snow we have up north, Im wondering if it's moisture related, or if it goes deeper then that. Havent had a chance to look at it myself yet, too damn cold...
Any info would be appreciated.
Thanks,
be-lated merry xmas to ya.
I started my car yesterday leaving best-buy (01 Civic) and it began reving vigourously between 1000-4000rpm. It does not go away either. Have any of you had this type of problem before? With all the cold weather we have been having and not to mention the amount of snow we have up north, Im wondering if it's moisture related, or if it goes deeper then that. Havent had a chance to look at it myself yet, too damn cold...
Any info would be appreciated.
Thanks,
28-Dec-2004, 10:36 AM
#3
Senior Member
Join Date: Dec 2002
Location: Pickering
Posts: 3,984
So the reving doesn't go away even once the car is warmed up?
If so, then you need to check the IACV (Idle Air Control Valve) or you may have a vacuum leak somewhere. THE IACV is on the back on the intake manifold.
It should have 2 hoses pluging into the bottom and an wire clip into the side. Disconnect the wire clip and see if it stops.. It should drop to base idle after, so expect it to be reving 500 or below.
Is the ECU throwing any codes?
If it does stop once it's warm, then you need to check the FAST IDLE VALVE.. Based on coolant flow it will regulate more or less air into the intake.
If so, then you need to check the IACV (Idle Air Control Valve) or you may have a vacuum leak somewhere. THE IACV is on the back on the intake manifold.
It should have 2 hoses pluging into the bottom and an wire clip into the side. Disconnect the wire clip and see if it stops.. It should drop to base idle after, so expect it to be reving 500 or below.
Is the ECU throwing any codes?
If it does stop once it's warm, then you need to check the FAST IDLE VALVE.. Based on coolant flow it will regulate more or less air into the intake.
28-Dec-2004, 05:39 PM
#5
Registered User
Join Date: Apr 2002
Location: Moon
Posts: 8,921
Originally posted by Cablerat
So the reving doesn't go away even once the car is warmed up?
If so, then you need to check the IACV (Idle Air Control Valve) or you may have a vacuum leak somewhere. THE IACV is on the back on the intake manifold.
It should have 2 hoses pluging into the bottom and an wire clip into the side. Disconnect the wire clip and see if it stops.. It should drop to base idle after, so expect it to be reving 500 or below.
Is the ECU throwing any codes?
If it does stop once it's warm, then you need to check the FAST IDLE VALVE.. Based on coolant flow it will regulate more or less air into the intake.
So the reving doesn't go away even once the car is warmed up?
If so, then you need to check the IACV (Idle Air Control Valve) or you may have a vacuum leak somewhere. THE IACV is on the back on the intake manifold.
It should have 2 hoses pluging into the bottom and an wire clip into the side. Disconnect the wire clip and see if it stops.. It should drop to base idle after, so expect it to be reving 500 or below.
Is the ECU throwing any codes?
If it does stop once it's warm, then you need to check the FAST IDLE VALVE.. Based on coolant flow it will regulate more or less air into the intake.
29-Dec-2004, 12:21 AM
#6
Registered User
Join Date: Jul 2003
Location: Mac U
Posts: 671
Originally posted by Cablerat
So the reving doesn't go away even once the car is warmed up?
..........
If it does stop once it's warm, then you need to check the FAST IDLE VALVE.. Based on coolant flow it will regulate more or less air into the intake.
So the reving doesn't go away even once the car is warmed up?
..........
If it does stop once it's warm, then you need to check the FAST IDLE VALVE.. Based on coolant flow it will regulate more or less air into the intake.
Originally posted by Team Rukus
check coolant and/or fast idle valve
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