high idle
Sit. Stay.
Joined: Oct 2001
Posts: 18,308
Likes: 20
From: Washington State
high idle
Your idle is a bit high. I idle around 600-700.
High idle concerns can manifest themselves from a few different areas.
1. Vacuum leaks. Check all the intake connections from the MAF up to the throttle body. Check for cracks or looseness.
2. Malfunctioning PVC. Remove and clean. Flip it up and down and make sure you hear the clicking noise.
3. Disconnect the connector to the IAC valve. If the RPMs DO NOT drop then the IAC needs to be replaced/cleaned.
4. Inspect all the vacuum hoses for leaks, cracks, punctures.
900 when warm isn't too bad but it does seem out of spec.
High idle concerns can manifest themselves from a few different areas.
1. Vacuum leaks. Check all the intake connections from the MAF up to the throttle body. Check for cracks or looseness.
2. Malfunctioning PVC. Remove and clean. Flip it up and down and make sure you hear the clicking noise.
3. Disconnect the connector to the IAC valve. If the RPMs DO NOT drop then the IAC needs to be replaced/cleaned.
4. Inspect all the vacuum hoses for leaks, cracks, punctures.
900 when warm isn't too bad but it does seem out of spec.
Senior User
Joined: Apr 2002
Posts: 489
Likes: 0
From: Seffner/Tampa Florida
high idle
[updated:LAST EDITED ON 11-Dec-02 AT 03:17 AM (EST)]>i have a 2000 x with a v-10 but my idle while warm is at 900
>rpm. is this normal? and is there anything i can do to back
>the idle down? thanks for your input.
This is just about what Monsta said but baybe a little dif.
l Listen for vacuum leaks.
l Inspect entire air intake system from the mass air flow (MAF) sensor to the intake manifold for leaks such as:
-- cracked or punctured inlet air tube.
-- loose connections on the inlet air tube at the air cleaner housing or throttle body.
-- idle air control (IAC) valve assembly or gasket seal.
-- EGR valve gasket seal leak to intake manifold.
-- Intake manifold assembly or gasket seal.
-- EGR valve diaphragm or control solenoid.
-- vacuum supply connectors and hose.
l Are any leaks detected?
Yes
KEY OFF. REPAIR any leaks.
No
REPLACE IAC valve if idle speed does not drop when disconnecting harness connector otherwise, KEY OFF. GO to «HU10».
If you need anymore assistance
me at "garyekuy(No Email Addresses In Posts!)
>rpm. is this normal? and is there anything i can do to back
>the idle down? thanks for your input.
This is just about what Monsta said but baybe a little dif.
l Listen for vacuum leaks.
l Inspect entire air intake system from the mass air flow (MAF) sensor to the intake manifold for leaks such as:
-- cracked or punctured inlet air tube.
-- loose connections on the inlet air tube at the air cleaner housing or throttle body.
-- idle air control (IAC) valve assembly or gasket seal.
-- EGR valve gasket seal leak to intake manifold.
-- Intake manifold assembly or gasket seal.
-- EGR valve diaphragm or control solenoid.
-- vacuum supply connectors and hose.
l Are any leaks detected?
Yes
KEY OFF. REPAIR any leaks.
No
REPLACE IAC valve if idle speed does not drop when disconnecting harness connector otherwise, KEY OFF. GO to «HU10».
If you need anymore assistance
me at "garyekuy(No Email Addresses In Posts!)
Thread
Thread Starter
Forum
Replies
Last Post
i1dery
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
3
Jan 13, 2008 04:25 PM
Jag Red 54
Fuel Injection, Carburetion & Fuel System
0
Aug 17, 2004 03:56 PM
