V10 idle
Thread Starter
|
Senior User
Joined: Feb 2006
Posts: 113
Likes: 0
From: St Louis,MO
V10 idle
My 99 V10 Idles at 1k even after warm up. Is that normal? I do have a K&N filter but I'm not sure if it would cause a increase in idle. Any info would be great. I've only owned my 99 F250SD for a few weeks so I'm new to the V10 world
Postmaster
Joined: Nov 2001
Posts: 4,742
Likes: 8
From: OK
I'd check the accuracy of tach first. They can be off by a couple hundred RPM.
If you're sure the idle is too high, check the throttle body for carbon build-up. Could be a little soot holding the butterfly valves open. Also check the throttle cable at both ends to be sure it's not holding the butterflies open.
If you're sure the idle is too high, check the throttle body for carbon build-up. Could be a little soot holding the butterfly valves open. Also check the throttle cable at both ends to be sure it's not holding the butterflies open.
Post Fiend
Joined: Jan 2002
Posts: 5,859
Likes: 7
From: USA
Could also be the IAC Valve getting dirty or ports to it
If it starts wandering up/ down in a few weeks thats it.
Chk the screw on the throttle body that is near the throttle plate lever to see if someone hasn't been playing with it because the idle was messing up.
Rich
If it starts wandering up/ down in a few weeks thats it.
Chk the screw on the throttle body that is near the throttle plate lever to see if someone hasn't been playing with it because the idle was messing up.
Rich
Senior User
Joined: Aug 2005
Posts: 327
Likes: 2
oct7brian, is your truck a stick? if it is, thats the way ford makes it. an automatic truck usually idles around 750 or so. my 2000 stick and the other sticks i have driven idle around 950. i asked my service manager why, he said ford idles up the manual transmission vehicles because it helps people that dont know how to use a clutch have a smoother launch without stalling it. go figure. matt
Thread Starter
|
Senior User
Joined: Feb 2006
Posts: 113
Likes: 0
From: St Louis,MO
Originally Posted by FortyFords
Could also be the IAC Valve getting dirty or ports to it
If it starts wandering up/ down in a few weeks thats it.
Chk the screw on the throttle body that is near the throttle plate lever to see if someone hasn't been playing with it because the idle was messing up.
Rich
If it starts wandering up/ down in a few weeks thats it.
Chk the screw on the throttle body that is near the throttle plate lever to see if someone hasn't been playing with it because the idle was messing up.
Rich
Trending Topics
Post Fiend
Joined: Jan 2002
Posts: 5,859
Likes: 7
From: USA
The screw should not be touching the lever at Idle,I believe the spec is slightly less than 1/8th away.
The IAC is the silver looking small canister on the back of the throttlebody with 2 wires going to it.2 small screws and it comes off.There is a gasket on there so becareful.
The k/n air filter could have cause a dirty maf as stated already.
Rich
The IAC is the silver looking small canister on the back of the throttlebody with 2 wires going to it.2 small screws and it comes off.There is a gasket on there so becareful.
The k/n air filter could have cause a dirty maf as stated already.
Rich
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 421
From: Long Island USA
Sounds like the IAC is stuck.
Rich, you sure that throttle stop doesn't contact the level under normal operation?
I've noticed my 4.6L's do contact the throttle stop, haven't really looked at the V10 yet, but I'm pretty sure when I was doing the plugs that it was against the stop. If it's not against the stop, that means the throttle plate is sticking open, the TPS is hanging up, something. And sticking open, I mean that the plate can't return to the stop because there's too much crud ...
Rich, you sure that throttle stop doesn't contact the level under normal operation?
I've noticed my 4.6L's do contact the throttle stop, haven't really looked at the V10 yet, but I'm pretty sure when I was doing the plugs that it was against the stop. If it's not against the stop, that means the throttle plate is sticking open, the TPS is hanging up, something. And sticking open, I mean that the plate can't return to the stop because there's too much crud ...
Post Fiend
Joined: Jun 2003
Posts: 5,643
Likes: 8
From: NE Texas
Originally Posted by oct7brian
My 99 V10 Idles at 1k even after warm up. Is that normal? I do have a K&N filter but I'm not sure if it would cause a increase in idle. Any info would be great. I've only owned my 99 F250SD for a few weeks so I'm new to the V10 world
Just for the record, my truck idles at 900 - '99 SD V10 5spd stick.
Thread
Thread Starter
Forum
Replies
Last Post
brads93 idi
Modular V10 (6.8l)
23
Jul 29, 2013 09:05 PM
