Idle Air Control Valve
New User
Joined: Sep 2003
Posts: 20
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Idle Air Control Valve
Rockledge
may I ask about a Taurus??
I have a 00 Sable, V6. The check engine light came on all the time
but would usually go out after the 3 drive cycles as stated in the
manual. Finally, though, the IAC just went bad 9car would not idle at all) and not knowing how easy it was had the dealer replace. The light didnt come on again until recently while on vacation, just driving down the road.
I've noticed it's flipped 60,000 miles and I read the manual states the PVC should be replaced at 60,000. I had the codes checked and the mechanic (not dealer) stated it didn't really say anything,
they could indicate dirty gas, dirty filters, etc. I replaced the air filter. The light came on again a few days later after I filled the gas tank (Chevron). I took the negative pole off the battery yesterday to reset and driven it a couple times with no light.
Do you think the light came on automatically at 60k miles simply so I would take it to the dealer for service?
may I ask about a Taurus??
I have a 00 Sable, V6. The check engine light came on all the time
but would usually go out after the 3 drive cycles as stated in the
manual. Finally, though, the IAC just went bad 9car would not idle at all) and not knowing how easy it was had the dealer replace. The light didnt come on again until recently while on vacation, just driving down the road.
I've noticed it's flipped 60,000 miles and I read the manual states the PVC should be replaced at 60,000. I had the codes checked and the mechanic (not dealer) stated it didn't really say anything,
they could indicate dirty gas, dirty filters, etc. I replaced the air filter. The light came on again a few days later after I filled the gas tank (Chevron). I took the negative pole off the battery yesterday to reset and driven it a couple times with no light.
Do you think the light came on automatically at 60k miles simply so I would take it to the dealer for service?
Mountain Pass
Joined: Aug 2003
Posts: 108
Likes: 2
Idle Air Control Valve
I wouldn't think that it would come on automatically at 60K.
I have recently crossed 60K (now 62K) with my '00 Ranger 4.0 V6, and I've never seen the check engine light come on, except during the bulb check during starting.
I have recently crossed 60K (now 62K) with my '00 Ranger 4.0 V6, and I've never seen the check engine light come on, except during the bulb check during starting.
Post Fiend
Joined: Jan 2003
Posts: 9,748
Likes: 16
From: Connecticut
Idle Air Control Valve
bwright,
The best thing to do IMO would be to wait and see if the CEL comes back on. If it does, go to someplace like Autozone that scans codes for free and have them pull the code(s). Then you can post the codes here or in the 3.0L V6 Forum and that way you can get some good feedback from the whole crew. Once the actual codes are known, you will at least have a starting point for possible repairs.
Alre you experiencing any driveability issues (hesitation,rough idle, etc)?
Like MSRanger, I don't recall ever hearing about a Ranger CEL coming on at 60K just as a reminder, although I do know that some other vehicle makes and models do have that built in to the computer.
The best thing to do IMO would be to wait and see if the CEL comes back on. If it does, go to someplace like Autozone that scans codes for free and have them pull the code(s). Then you can post the codes here or in the 3.0L V6 Forum and that way you can get some good feedback from the whole crew. Once the actual codes are known, you will at least have a starting point for possible repairs.
Alre you experiencing any driveability issues (hesitation,rough idle, etc)?
Like MSRanger, I don't recall ever hearing about a Ranger CEL coming on at 60K just as a reminder, although I do know that some other vehicle makes and models do have that built in to the computer.
Last edited by Rockledge; Sep 5, 2003 at 11:53 AM.
New User
Joined: Sep 2003
Posts: 20
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Idle Air Control Valve
it just came back on, so I'm headed to my neighborhood NAPA
for diagnostics. I'll let you know what the codes are.
It sounds a little 'throaty' sometimes at idle, but not unusual I dont think. of course it pings like an old Beetle sometimes, but that's common also as I hear others on the street all the time.
for diagnostics. I'll let you know what the codes are.
It sounds a little 'throaty' sometimes at idle, but not unusual I dont think. of course it pings like an old Beetle sometimes, but that's common also as I hear others on the street all the time.
New User
Joined: Feb 2001
Posts: 15
Likes: 0
Idle Air Control Valve
When I removed the IAC valve from my 1997 mazda b4000 to check and clean it ( because of howling noise)the valve was in the open position. Is this normal?
Applying 12v to the solenoid terminals resulted in a clicking noise as the solenoid engaged but there was no movement of the mechanism that opens and closes the air passage.
Does this indicate that the valve is shot?
I put the valve back on anyway until I couild get a replacement but the engine idle stabilized at 2500 (after battery diconnected for 30 min. ) instead of 800 previous to removing the valve. What has caused this change in idle speed?
Applying 12v to the solenoid terminals resulted in a clicking noise as the solenoid engaged but there was no movement of the mechanism that opens and closes the air passage.
Does this indicate that the valve is shot?
I put the valve back on anyway until I couild get a replacement but the engine idle stabilized at 2500 (after battery diconnected for 30 min. ) instead of 800 previous to removing the valve. What has caused this change in idle speed?
Senior User
Joined: Jun 2003
Posts: 123
Likes: 0
From: Pacheco, CA
Idle Air Control Valve
Originally posted by bwright
Do you think the light came on automatically at 60k miles simply so I would take it to the dealer for service?
Do you think the light came on automatically at 60k miles simply so I would take it to the dealer for service?
New User
Joined: Mar 2003
Posts: 11
Likes: 0
Idle Air Control Valve
Good replies to the "Humming" noise from the engine area when it was warm! I have to say that it is one of the most annoying noises, especially in a parking lot or going through a drive through window and having people looking at you. It's not like having a loud performance exhaust or a loud sound system in your vehicle which would be acceptable.
Anyway, like some of you I tried to clean my IAC(Idle Air Control) and for a few days the noise went away, but it came back. I finally did some searching at the local auto parts store and found the IAB from Autozone for the unbelieveable price of 39.99 for the 4.0l in a 97 Aerostar AWD, part number TV245! Other stores wanted over 100.00 dollars for the same part and Ford dealerships wanted close to 200.00!
I installed the part which was a snap and NO MORE HUMMING NOISE! What a relief! That was the BEST use of 40.00 ever!
Anyway, like some of you I tried to clean my IAC(Idle Air Control) and for a few days the noise went away, but it came back. I finally did some searching at the local auto parts store and found the IAB from Autozone for the unbelieveable price of 39.99 for the 4.0l in a 97 Aerostar AWD, part number TV245! Other stores wanted over 100.00 dollars for the same part and Ford dealerships wanted close to 200.00!
I installed the part which was a snap and NO MORE HUMMING NOISE! What a relief! That was the BEST use of 40.00 ever!
Last edited by Sir_Ham; Sep 7, 2003 at 08:58 AM.
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New User
Joined: Sep 2003
Posts: 20
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Idle Air Control Valve
Rockledge, tried to post in the V6 section but I can't seem to find a way to start a new thread. Just to summarize, I have a '00 Sable with 3.0 V6, had the IAC replaced about 6months ago, it's always pinged, recently the CEL came while driving on vacation. It flipped 60,000 miles and the owners manual says to replace PVC at 60,000. I've removed the negative pole of the battery to reset and it came back on after a couple days. Had the code pulled and it reads P1131 w/ description Fuel Air Metering Manufacture control according to Autozone diag.
I've read the codes on your tech section but there are many possible causes apparently. How can I narrow? As I said the engine does ping, but doesnt seem to ping as much as usual now.
thanks
I've read the codes on your tech section but there are many possible causes apparently. How can I narrow? As I said the engine does ping, but doesnt seem to ping as much as usual now.
thanks
New User
Joined: Nov 2003
Posts: 1
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This is my first time to this forum. I have already found it very valuable. Especially since my truck has been making the humming noise for over a year but the check engine light just came on a few weeks ago. I have my IAC on order from Napa and can't wait to get it changed out. Thanks to all who contributed and made this fix really easy.
New User
Joined: Nov 2003
Posts: 12
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From: Durham
Re: Idle Air Control Valve
Originally posted by MSRanger
On my 4.0 2000 Ranger, there is an oring in a groove on the IAC valve, no gasket.
You need to be sure that the oring doesn't fall out when disassembling.
Mine didn't. It stayed in the groove the whole time.
On my 4.0 2000 Ranger, there is an oring in a groove on the IAC valve, no gasket.
You need to be sure that the oring doesn't fall out when disassembling.
Mine didn't. It stayed in the groove the whole time.
So should the O-ring be replaced, should the new gasket that was mentioned with the new IAC from NAPA be used. What are the opinions on this?
Mountain Pass
Joined: Aug 2003
Posts: 108
Likes: 2
If the new valve has an o-ring groove, it's best to use a new o-ring.
If the new valve does not have an o-ring groove, then the gasket is a must.
If the old o-ring is not too many years old, and the new o-ring groove is not machined deeper than the old one, then re-using the old o-ring is not a real risk.
I'm planning on going out and getting a new valve soon, even though cleaning mine did work OK. A few times lately on start-up, the engine has sounded like the valve was stuck, and then opened OK before the engine died.
I don't want it to start acting up on a day when Mama borrowed my truck...
If the new valve does not have an o-ring groove, then the gasket is a must.
If the old o-ring is not too many years old, and the new o-ring groove is not machined deeper than the old one, then re-using the old o-ring is not a real risk.
I'm planning on going out and getting a new valve soon, even though cleaning mine did work OK. A few times lately on start-up, the engine has sounded like the valve was stuck, and then opened OK before the engine died.
I don't want it to start acting up on a day when Mama borrowed my truck...