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04-24-2014, 02:38 PM
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Ford Motor Co
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Join Date: Jan 2014
Posts: 174
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Re: High Idle problems
Quote:
Originally Posted by rang-a-stang
thank you for the responses Clinton64xl and Cole_CT
Will do (vaccum leaks). Air filter has about 1,000 miles on it. The throttle body was cleaned when i did the IAC replacement (about 800 miles ago).
Personally, i am not a huge fan of spraying very flamable chemicals around a running/warm engine. Usually to find vaccum leaks, i will unhook a a line, apply vaccum with a hand pump/guage and verify it holds. it presents a little less of a fire hazard and can be done when the engine is cold. I'll probably pull the upper/lower intakes and replace their gaskets just to be sure. The gaskets are cheap and my labor is free. it will also give me the chance to port match them.
I also saw on another forum last night, a guy had very similiar issues to me and found significant damage to the computer/harness connector. I will be checking that tonight, too.
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You could also use a smoke machine to check for vacuum leaks.
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04-28-2014, 10:13 AM
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Learning to use the forums
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Join Date: Apr 2014
Posts: 5
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Re: High Idle problems
This weekend I replaced my lower intake manifold gaskets, valve cover gaskets, and did a bunch of cleaning. My lower intake gasket looked like it was going around cylinder #5. I am not sure if that was my problem but it was a problem. I replaced all the O-rings on the fuel injectors too. I noticed alot more oil on all my passages than normal so I will replace the PCV valve as I reassemble.
As i am putting the engine back together I am checking each sensor and vacuum line. So far I have found both my Coolant Temp Sender is bad (open, explains why my Temp Guages didn't work) and my Coolant Temp Sensor is bad (also open which may explain a high idle when warm). I fixed 2 oil leaks too. Tonight I plan to start putting the upper intake and all it's sensors and vacuum lines back on. My stomach and chest are like ground beef from laying across the hook latch to get that !@#$^%& passenger side rear valvle cover bolt off/on.
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04-29-2014, 07:40 PM
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Ford Ranger Driver
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Join Date: Jun 2013
Posts: 1,361
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Re: High Idle problems
Quote:
Originally Posted by rang-a-stang
This weekend I replaced my lower intake manifold gaskets, valve cover gaskets, and did a bunch of cleaning. My lower intake gasket looked like it was going around cylinder #5. I am not sure if that was my problem but it was a problem. I replaced all the O-rings on the fuel injectors too. I noticed alot more oil on all my passages than normal so I will replace the PCV valve as I reassemble.
As i am putting the engine back together I am checking each sensor and vacuum line. So far I have found both my Coolant Temp Sender is bad (open, explains why my Temp Guages didn't work) and my Coolant Temp Sensor is bad (also open which may explain a high idle when warm). I fixed 2 oil leaks too. Tonight I plan to start putting the upper intake and all it's sensors and vacuum lines back on. My stomach and chest are like ground beef from laying across the hook latch to get that !@#$^%& passenger side rear valvle cover bolt off/on.
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Let us know how it runs after....
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2000 Ford Ranger XLT - 4x4 Off Road - 3.0L - 5speed - 4.10 - 3in BL - 2in Torsion Lift - Lokka Front Locker - RCI Skids - Rancho Shocks - Super Start Extreme AGM Deep Cycle Battery - Cragar Soft 8s - 33x12.50 BFG M/T KM2 w/ Hitch Mounted Spare - Smittybilt XRC8 Winch - On Board Compressor - Hidden Snorkel
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04-30-2014, 10:03 AM
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Learning to use the forums
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Join Date: Apr 2014
Posts: 5
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Re: High Idle problems
Last night I had to reinstall the #3 cyl intake rocker and pushrod. I'm not quite sure why Ford made it so you have to remove that pushrod to remove the lower intake but I digress.
I got the lower all buttoned up, checked all my vacuum lines, checked the ACT sensor, TPS, and reinstalled upper intake. I added new coolant and cranked 'er over. Nothing. grabbed my timing light, Awesome 180 out. So i had the joy of re-installing the Distrobutor. Cranked it over and I got a couple pops but no running. CHecked my timeining and i was still 20 After TDC. Tried to time it but could not get it to go any farther back than TDC. So i grabbed a mirror and pulled the distributor cap off. I could see a lower intake manifold bolt was interfereing with the bottom of the distributor so i pulled it out, ground the distributor a little and reinstalled it. Now it starts but it was too later for me to finish timing it and going for a test drive. With timing at TDC it sure seems to idle better so far.
So the only real vacuum leak I found was for the circuit that connects to the back of the air filter housing. What is that? I just plugged it for now...
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05-02-2014, 11:45 AM
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Learning to use the forums
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Join Date: Apr 2014
Posts: 5
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Re: High Idle problems
It took me FOREVER to get this Biatch timed. Every distributor i have ever installed could go in one way. This one goes in 4 ways which means it can be 90 degrees out, 180, or 270. I was going CRAZY trying to get it to run right.
Anywho, i got it started and it ran AWESOME. Like SUPER AWESOME. I was SOOO stoked. Smooth as glass, idles correctly, lots of power. So stoked. Then i pulled it in the garage and it pissed coolant all over my clean floors. I looked up and saw coolant spewing out of the water pump weep hole. Thats pretty awesome. Luckily it was only 15 bucks and in stock for a new water pump. About 75 miles on it now and its running super dee duper.
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05-07-2014, 10:26 AM
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Learning to use the forums
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Join Date: Apr 2014
Posts: 1
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Re: High Idle problems
high idle in freeway! I have 2500 rpm @ 65mph but my morning start is good 800-900rpm is this normal? My friend said too high, should be just 2000 or 1900 @ 65mph. Thanks
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05-07-2014, 10:46 AM
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Ford Tough
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Join Date: Mar 2013
Posts: 226
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Miy 4.0 with 3.73 gears idles around 2500rpm doing 70
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05-07-2014, 07:53 PM
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Ford Ranger Driver
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Join Date: Oct 2011
Posts: 8,818
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What the heck is wrong with you people ? Nothing is idling while going down the freeway ! Idling is the engine speed while sitting still and not on the accelerator !
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05-08-2014, 05:44 AM
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Ford Ranger Driver
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Join Date: Jun 2013
Posts: 1,361
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Re: High Idle problems
Quote:
Originally Posted by GLH
What the heck is wrong with you people ? Nothing is idling while going down the freeway ! Idling is the engine speed while sitting still and not on the accelerator !
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I do understand and agree with your comment....to a point. However, your engine can be at idle doing 70, clutch in or in neutral. There's technically no load on the motor at that point. Therefor, it would idle. If you have a bad IAC, the speed would force induction of air past that valve, could bump you idle up a little...
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2000 Ford Ranger XLT - 4x4 Off Road - 3.0L - 5speed - 4.10 - 3in BL - 2in Torsion Lift - Lokka Front Locker - RCI Skids - Rancho Shocks - Super Start Extreme AGM Deep Cycle Battery - Cragar Soft 8s - 33x12.50 BFG M/T KM2 w/ Hitch Mounted Spare - Smittybilt XRC8 Winch - On Board Compressor - Hidden Snorkel
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05-08-2014, 07:23 AM
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Ford Ranger Driver
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Join Date: Oct 2011
Posts: 8,818
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That's called coasting, and yes, and how is that relevant ?
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06-07-2016, 05:30 AM
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Learning to use the forums
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Join Date: Jun 2016
Posts: 1
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Re: High Idle problems
Check temp sensor /sender
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07-29-2016, 12:15 PM
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Learning to use the forums
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Join Date: Jun 2016
Posts: 2
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05 Ford Ranger code said replace coil pack and I did I still have the same problem this truck was a wreck so it's possible there's a ground issues but I've looked over them very good very well I'm sorry anybody have a similar issues it's runs fine one day and next day it won't always misses at an idle then don't hesitate
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07-29-2016, 12:28 PM
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Ford Ranger Driver
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Join Date: Jan 2009
Posts: 6,268
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Re: High Idle problems
Quote:
Originally Posted by strikeingracerx
05 Ford Ranger code said replace coil pack and I did I still have the same problem this truck was a wreck so it's possible there's a ground issues but I've looked over them very good very well I'm sorry anybody have a similar issues it's runs fine one day and next day it won't always misses at an idle then don't hesitate
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Post the actual code #
"Losers focus on winners, winners focus on winning" TB12
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2004 Ext Cab, 4WD, 4.0, Auto, 154k. (4.0 engine is out of a 2009 Ranger w/96k) ( as of 7/1/2017)
2004 Ranger, Ext Cab, 2WD, 3.0, 5 speed , 4WABS, crank windows, no cruise, Edge 116k.(6/5,2014) (SOLD).
1999 Ford Ranger, Reg Cab, 2.5, 5 speed, 2WD, no AC, 150k (SOLD).
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