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04-11-2013, 04:49 PM
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Liking the Ford Ranger Forum
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Re: 2.5L Idling Rough and Stalling
Quote:
Originally Posted by adamhos
Check plug wires
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Plugs and wires are new.
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04-21-2013, 07:08 PM
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Re: 2.5L Idling Rough and Stalling
I found that I did have a bad intake gasket, which I replaced. It didn't help the problem so I tried replacing the IAC valve on a whim, that didn't help either.
I'm at a loss.
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04-21-2013, 09:38 PM
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Mr H....A....P...P....Y👿
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Join Date: Nov 2012
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Re: 2.5L Idling Rough and Stalling
Quote:
Originally Posted by stateranger
The ping i had was caused by tape blocking the maf which also caused one of elements on the maf to burn out..... What happens is the maf is sending the ecu an incorrect airflow reading at idle and while driving, sometimes you will get a lean code.
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It will also cause rough idle and on start up the engine will run smooth.
"I found that I did have a bad intake gasket, which I replaced. It didn't help the problem so I tried replacing the IAC valve on a whim, that didn't help either".
Replace the mass air flow sensor.
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2014 F150 xl 3.7 6 speed auto.
Quote:
Originally Posted by pk9298
HELL TO THE NO!! Abort abort abort!! That's the first thing to go!!! Ewwwww! I'm not no vampire! I don't enjoy red tea
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Last edited by stateranger; 04-21-2013 at 09:42 PM.
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04-24-2013, 08:26 PM
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Ford Ranger Driver
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Did you fix the problem yet?
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2001 Ford Ranger Edge 3.0 auto | Push bar | Offroad lights | Toolbox | CB | CB whip | Tow hitch | Black Taillights | Marker Lights | Headlight mod | Silverstar Ultra ZXE | Pioneer Head Unit | Cold air intake | Mustang Dome Light | Cargo Lights | Expo OHC | Expo White Gauge Cluster | Auto Dim Mirror | Sliding rear window Mod | 05 Chrome Bumper | 03 15x7 Alcoas | 31x10.5x15 Cooper Discoverer A/T3
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04-27-2013, 08:35 PM
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Re: 2.5L Idling Rough and Stalling
No not yet. I have been working 14-16 hour days for a while and haven't been able to spend time on it. I will be sure to update when I try more things or fix the problem. I'm going to do as stageranger suggests and replace the MAF the next chance I get.
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05-02-2013, 02:36 PM
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Re: 2.5L Idling Rough and Stalling
Ok, so I just replaced the MAF. No difference, it still won't idle correctly. The idle does seem like it smooths out more quickly. Maybe because its a warm today?
I'm grasping for straws at this point.
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05-02-2013, 08:28 PM
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Ford Ranger Driver
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Bump.
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2001 Ford Ranger Edge 3.0 auto | Push bar | Offroad lights | Toolbox | CB | CB whip | Tow hitch | Black Taillights | Marker Lights | Headlight mod | Silverstar Ultra ZXE | Pioneer Head Unit | Cold air intake | Mustang Dome Light | Cargo Lights | Expo OHC | Expo White Gauge Cluster | Auto Dim Mirror | Sliding rear window Mod | 05 Chrome Bumper | 03 15x7 Alcoas | 31x10.5x15 Cooper Discoverer A/T3
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05-03-2013, 03:18 PM
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Re: 2.5L Idling Rough and Stalling
I did a compression test.
Cylinder 1 - 180 psi
Cylinder 2 - 180 psi
Cylinder 3 - 180 psi
Cylinder 4 - 150 psi
So I probably have a bad valve on cylinder 4 but why do I have a misfire code for cylinders 1 and 2?
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05-06-2013, 07:16 PM
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Learning to use the forums
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Join Date: May 2013
Posts: 5
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Re: 2.5L Idling Rough and Stalling
I am having this same problem from what I can tell. I started today with cleaning the IAC but when I got it back together it was even worse than yesterday, it used to just idle rough now it stalls when idled. I cleaned it with throttle body cleaner, any chance I messed something up inside the IAC? or should I just keep on with the process (MAF sensor, EGR valve, etc.) I also know my air filter needs to be cleaned maybe just replaced, which I believe could make for a very dirty MAF sensor
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05-07-2013, 08:53 PM
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Re: 2.5L Idling Rough and Stalling
Quote:
Originally Posted by j4k3.sn4k3
I am having this same problem from what I can tell. I started today with cleaning the IAC but when I got it back together it was even worse than yesterday, it used to just idle rough now it stalls when idled. I cleaned it with throttle body cleaner, any chance I messed something up inside the IAC? or should I just keep on with the process (MAF sensor, EGR valve, etc.) I also know my air filter needs to be cleaned maybe just replaced, which I believe could make for a very dirty MAF sensor
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I think I got about 11 Ohms when metering out my working IAC when disconnected. Also, your engine will stall if a working IAC is unplugged while idling. Hope this helps.
For my next step I plan on pouring a small amount of oil in the cylinder that has low compression to determine if the problem is a cracked ring or a bad vale. Hopefully your problem isn't as severe.
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05-07-2013, 09:47 PM
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Learning to use the forums
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Join Date: May 2013
Posts: 5
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Re: 2.5L Idling Rough and Stalling
yeah im going to thoroughly go over the whole air intake system to make sure everything is clean and connected, ran out of day light yesterday and got stuck working all day today. keep updating our progress if you can and good luck!
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05-08-2013, 07:03 PM
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get stabby
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Join Date: May 2009
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Re: 2.5L Idling Rough and Stalling
Everything I would've suggested seems to have been done already... I think... although something seems wrong in cylinder #4. Did you check/replace the TPS?
Quote:
Originally Posted by j4k3.sn4k3
I am having this same problem from what I can tell. I started today with cleaning the IAC but when I got it back together it was even worse than yesterday, it used to just idle rough now it stalls when idled. I cleaned it with throttle body cleaner, any chance I messed something up inside the IAC? or should I just keep on with the process (MAF sensor, EGR valve, etc.) I also know my air filter needs to be cleaned maybe just replaced, which I believe could make for a very dirty MAF sensor
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It is possible to damage the IAC when cleaning it. Same with the MAF.
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1998 Ranger XLT x-cab 2.5L M5OD-R1 black styleside, salvage title
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05-08-2013, 08:00 PM
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Buy a Ford
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Join Date: Jan 2013
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Re: 2.5L Idling Rough and Stalling
I hate to tell you where to waste more $ but I'm wondering if you have a timing issue. Maybe look into ignition control module (if there is 1?), crank sensor or cam sensor. Just ideas, I also do not know if there is both crank/cam sensors on this engine.
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05-09-2013, 10:33 AM
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Learning to use the forums
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Join Date: May 2013
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Re: 2.5L Idling Rough and Stalling
Quote:
Originally Posted by SpeedNinja
Everything I would've suggested seems to have been done already... I think... although something seems wrong in cylinder #4. Did you check/replace the TPS?
It is possible to damage the IAC when cleaning it. Same with the MAF.
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yeah i think im going to pull the IAC off again and test it. My problem got way worse after i cleaned it so chances are pretty good that I damaged the part.
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05-09-2013, 11:23 AM
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Ford Pickup
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Join Date: Apr 2012
Posts: 101
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Re: 2.5L Idling Rough and Stalling
Maybe you have a bad spot on the TPD where it idles? I would double check the plug wires to make sure you have them snapped on and didn't accidentally separate the wire from the boot.
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