01-28-2014, 08:40 PM
|
#1
|
|
Member
|
|
Join Date: Jan 2011
Location: Texas
Posts: 273
|
|
Member
Join Date: Jan 2011
Location: Texas
Posts: 273
|
p2440, That f'ing pump!!!!!!
Well. Looks like my 2005 v8 is down. I went to start it and it has a weird air sucking sound, CEL VSC, etc. all lit up, and no power at all.
Throwing the code p2440. I've looked around some and here is what I know:
code means air induction pump valve stuck open
The fix can cost $4000!
This is a known issue with the 4.7 and if it was a tundra or sequoia it would be covered by the extended warranty (10yrs, 150,000 miles)
Toyota Warranties Air Pump System - Reimbursement Available | Tundra Headquarters Blog
The 4runner owners apparently are SOL.
There is the pump and 2 valves and all three are suspect as the codes don't necessarily always match.
Input I'd love to hear:
Has anyone had any luck getting toyota to honor the Tundra/Sequoia warranty?
Has anyone done this fix themselves? This is the route I'll most likely take?
Anyone know of a good thread here or elsewhere to follow? All my searches just turn up other people *****in' like me.
Any known way to just delete this system? I know it's a smog thing, but I live in a county that doesn't test and I don't have $4k laying around right now.
So far the best thing I've found is this: http://freepdfhosting.com/b8a5b18d0f.pdf
Please help by offering up any info you have on this project. Thanks.
__________________
2007 4runner SE V8 4WD: OME BP-51, SPC, Scion IM 2016+
2005 4runner SR5 V8 4WD: ICON Stage 1, Total Chaos UCA, Scion T1819 (SOLD )
1986 4Runner 4WD 22-RE: Full Rebuild, LCE Header, Custom Head, Supra AFM
|
|
Reply With Quote
|
01-28-2014, 08:57 PM
|
#2
|
|
Member
|
|
Join Date: Mar 2006
Location: Aledo, TX
Posts: 945
|
|
Member
Join Date: Mar 2006
Location: Aledo, TX
Posts: 945
|
I have seeing couple different options to “fix” this in the past… here is what I got after quick Google search:
Air Induction Pump Bypass Module - AIP Valve Bypass
http://www.toyota-4runner.org/proble...-system-2.html
__________________
2013 Silver Trail (with KDSS)-Nitto TG-G2, Bilstein 5100, Custom lift: front 2.1", rear 1.5" (lift info: [URL=https://www.toyota-4runner.org/2938235-post744.html[/URL] thread #744)
1995 SR5 4x4, 1996 SR5 4x4, 2005 SR5 V8 4x4- All Sold, but not forgotten!
DON'T GET CONFUSED BETWEEN MY PERSONALITY AND MY ATTITUDE. MY PERSONALITY IS WHO I AM...MY ATTITUDE DEPENDS ON WHO YOU ARE
|
|
Reply With Quote
|
01-28-2014, 09:30 PM
|
#3
|
Member
|
|
Join Date: Aug 2006
Location: Natchitoches, LA
Posts: 207
|
|
Member
Join Date: Aug 2006
Location: Natchitoches, LA
Posts: 207
|
Have you tried disconnecting battery and seeing if 2440 code comes back?
The stuck open code is the "bad" one as it will put truck in the limp mode.
If you can get the valves to close......then do the AIP delete relay(see other posts or email me) and the valves will never open again. The AIP pump is semi-worthless in my opinion. (no need)
|
|
Reply With Quote
|
01-28-2014, 09:51 PM
|
#4
|
|
Member
|
|
Join Date: Jan 2011
Location: Texas
Posts: 273
|
|
Member
Join Date: Jan 2011
Location: Texas
Posts: 273
|
Hmm. The "bad one". Of course it is. Yeah, I read about your delete and it sounds promising if caught before the failure, but I didn't.
Limp mode is on for sure. I cleared code started it up. Ran great for all 5 seconds and then the dash lit up again and back to limp mode. Same code, p2440.
So, am I correct in assuming my pump is good, just one or both of the valves bad?
Which is bank 1?
What parts am I looking at here: https://parts.olathetoyota.com/2005t...nnerparts.html
__________________
2007 4runner SE V8 4WD: OME BP-51, SPC, Scion IM 2016+
2005 4runner SR5 V8 4WD: ICON Stage 1, Total Chaos UCA, Scion T1819 (SOLD )
1986 4Runner 4WD 22-RE: Full Rebuild, LCE Header, Custom Head, Supra AFM
|
|
Reply With Quote
|
01-28-2014, 10:03 PM
|
#5
|
|
Senior Member
|
|
Join Date: Sep 2009
Location: Gainesville, Virginia
Age: 41
Posts: 1,057
Real Name: Matt
|
|
Senior Member
Join Date: Sep 2009
Location: Gainesville, Virginia
Age: 41
Posts: 1,057
Real Name: Matt
|
Quote:
Originally Posted by txclimber
Hmm. The "bad one". Of course it is. Yeah, I read about your delete and it sounds promising if caught before the failure, but I didn't.
Limp mode is on for sure. I cleared code started it up. Ran great for all 5 seconds and then the dash lit up again and back to limp mode. Same code, p2440.
So, am I correct in assuming my pump is good, just one or both of the valves bad?
Which is bank 1?
What parts am I looking at here: https://parts.olathetoyota.com/2005t...nnerparts.html
|
First off - sorry to hear you have this problem too.
I ended up doing the bypass with the block off plates and passed VA emissions a week ago no problem. With the cold I've had it throw p2445 codes on me twice but I've reset and they don't trip for another couple weeks. I figure I'll work it out over the next 2 years before next emissions is due. Check out my build for details.
I thought the bypass worked for 2440 codes too. Sorry I can't help much with the parts needed. If you do end up replacing the stuff yourself please take some pics of the process.
Obviously I hope you find a cheap fix. This AIP system is a waste and poorly executed by Toyota.
__________________
HokieRunner 2005 4Runner Sport Edition V8 4x4 Silver Build Thread
Radflo 2.5 F 700#/R 220# / Desert Racing Uniball UCA / 285/70/17 Duratrac on 17x8 Konig Six Shooter / RCI Full Skids / BAMF LCA Skid / Shrockworks 3 Hoop Bumper / Custom WhiteKnuckle Sliders / Custom WMW Roof rack / CVJ Reman'd Axles / 06+ Facelift / Custom sound system / AIP Bypass / LED Gauges,Dash,Interior / Wiring, aux. lighting, dual battery, custom cargo box in progress...
|
|
Reply With Quote
|
01-28-2014, 10:15 PM
|
#6
|
Member
|
|
Join Date: Aug 2006
Location: Natchitoches, LA
Posts: 207
|
|
Member
Join Date: Aug 2006
Location: Natchitoches, LA
Posts: 207
|
I THINK......the AIP delete relay will still prevent it from limp mode......BUT it could possibly cause a fire due to fact valve bank is still open.(probably slim but that is why limp mode goes in affect when OPEN versus Closed(no danger).
I don't have the link handy but in the tundra forum a couple guys made block off plates that close the tube that comes into the valve banks, thus preventing back flow from manifold exhaust(possible source of fire) and then you are safe.
They are hard to get to(I have not done but I did investigate it a year or so ago when I did my AIP delete). That is what I would do! F $4000 that's half what the truck is worth! LOL. I can prolly send you a kit out tomorrow if you let me know in the next couple hours.
|
|
Reply With Quote
|
01-28-2014, 10:28 PM
|
#7
|
Member
|
|
Join Date: Aug 2006
Location: Natchitoches, LA
Posts: 207
|
|
Member
Join Date: Aug 2006
Location: Natchitoches, LA
Posts: 207
|
Probably just one valve bad......I'd have to find exploded view of AIP system to see which is which.
I would not trust your 2005 pump.....it's going to fail. They all do. Mine did last year and I drive an 05 as well. I guess I'm saying I wouldn't fix a valve bank and think your going to get "years" more service without issues.....Pump will die sooner than later. I also remember reading that the fins/blades on the fans break over time and can jam in the valve bank to keep it open......might be your case????
|
|
Reply With Quote
|
01-28-2014, 10:47 PM
|
#8
|
|
Member
|
|
Join Date: Jan 2011
Location: Texas
Posts: 273
|
|
Member
Join Date: Jan 2011
Location: Texas
Posts: 273
|
Sly, you're probably right about the pump. When I get in there I'm sure there will be bits of plastic broken off.
Now would be a good time to say, I love my 1986 4runner. These modern "improvements" really blow.
Do you, or anybody else, know if I have to remove both the upper and lower intake manifold to get to the dang thing or just the upper?
__________________
2007 4runner SE V8 4WD: OME BP-51, SPC, Scion IM 2016+
2005 4runner SR5 V8 4WD: ICON Stage 1, Total Chaos UCA, Scion T1819 (SOLD )
1986 4Runner 4WD 22-RE: Full Rebuild, LCE Header, Custom Head, Supra AFM
|
|
Reply With Quote
|
01-29-2014, 09:37 AM
|
#9
|
|
Senior Member
|
|
Join Date: Sep 2009
Location: Gainesville, Virginia
Age: 41
Posts: 1,057
Real Name: Matt
|
|
Senior Member
Join Date: Sep 2009
Location: Gainesville, Virginia
Age: 41
Posts: 1,057
Real Name: Matt
|
Quote:
Originally Posted by txclimber
Sly, you're probably right about the pump. When I get in there I'm sure there will be bits of plastic broken off.
Now would be a good time to say, I love my 1986 4runner. These modern "improvements" really blow.
Do you, or anybody else, know if I have to remove both the upper and lower intake manifold to get to the dang thing or just the upper?
|
I'm fairly certain you just remove the upper. I found this web posting (it's a 'how to' for replacing the knock sensors) but you'll notice the penultimate step is 'remove air pump'.
Intake manifold removal procedure
The bypass could very well work for you as well. Installing the block off plates is fairly straightforward (easiest to install from under the vehicle/through the wheel well). Even with the bypass and block off plates I still get the intermittent P2445 code and associated limp mode. But I just clear it and back in business for a while. After speaking with Paul who does the solid state modules I need to run down a diagnostic checklist but given the cold temps I'm waiting a bit before I start the troubleshooting.
Keep us updated and definitely post pics if you pull the pumps. Looks pretty straight forward...just a pain in the butt for what it is.
__________________
HokieRunner 2005 4Runner Sport Edition V8 4x4 Silver Build Thread
Radflo 2.5 F 700#/R 220# / Desert Racing Uniball UCA / 285/70/17 Duratrac on 17x8 Konig Six Shooter / RCI Full Skids / BAMF LCA Skid / Shrockworks 3 Hoop Bumper / Custom WhiteKnuckle Sliders / Custom WMW Roof rack / CVJ Reman'd Axles / 06+ Facelift / Custom sound system / AIP Bypass / LED Gauges,Dash,Interior / Wiring, aux. lighting, dual battery, custom cargo box in progress...
|
|
Reply With Quote
|
01-29-2014, 10:52 AM
|
#10
|
|
Member
|
|
Join Date: Jan 2011
Location: Texas
Posts: 273
|
|
Member
Join Date: Jan 2011
Location: Texas
Posts: 273
|
Thanks Hokie. Still exploring options. Reading up about the bypass and plates and such. When I finally knock this out, I'll do a full write-up with lots of pics. Hard to believe there's not one here already. This site is such a great resource.
__________________
2007 4runner SE V8 4WD: OME BP-51, SPC, Scion IM 2016+
2005 4runner SR5 V8 4WD: ICON Stage 1, Total Chaos UCA, Scion T1819 (SOLD )
1986 4Runner 4WD 22-RE: Full Rebuild, LCE Header, Custom Head, Supra AFM
|
|
Reply With Quote
|
01-29-2014, 10:59 AM
|
#11
|
|
Senior Member
|
|
Join Date: Apr 2011
Location: SC
Posts: 1,723
Real Name: PD
|
|
Senior Member
Join Date: Apr 2011
Location: SC
Posts: 1,723
Real Name: PD
|
Quote:
Originally Posted by HokieRunner
Even with the bypass and block off plates I still get the intermittent P2445 code and associated limp mode. But I just clear it and back in business for a while.
|
Really?? I've not had any issues with lights or limping since my relay bypass. Strange.
To the OP, the only piece I have to add is, if you're gonna go in and repair the system, order the AC Delco/GM P/N for the pump that is used on the Trail Blazers. Same part and will cost you a 3rd of what the Toyota part costs, per this:
http://www.tundrasolutions.com/forum...erride-1.1.pdf
which is the fix I used. The pump portion I'm referring to is at the end. Sorry to hear about your bum luck man. Good luck with it and keep us posted. If you do a full system tear down and repair, it'd be really cool if you documented it for us for future reference.
Maybe these FSM attachments will help.
__________________
- PD
2005 V8 SR5 4WD Natural White
My Build Thread
My "Rally Rocket" 2017 WRX
|
|
Reply With Quote
|
01-29-2014, 11:15 AM
|
#12
|
|
Member
|
|
Join Date: Jan 2011
Location: Texas
Posts: 273
|
|
Member
Join Date: Jan 2011
Location: Texas
Posts: 273
|
Superman, great tip on the GM part! Thanks.
__________________
2007 4runner SE V8 4WD: OME BP-51, SPC, Scion IM 2016+
2005 4runner SR5 V8 4WD: ICON Stage 1, Total Chaos UCA, Scion T1819 (SOLD )
1986 4Runner 4WD 22-RE: Full Rebuild, LCE Header, Custom Head, Supra AFM
|
|
Reply With Quote
|
01-29-2014, 11:55 AM
|
#13
|
|
Member
|
|
Join Date: May 2011
Location: Las Vegas
Posts: 559
|
|
Member
Join Date: May 2011
Location: Las Vegas
Posts: 559
|
OP, did you get any warning signs before failure?
__________________
2018 4Runner, SR5 Premium, Silver
2015 4Runner, Limited, White
2015 Lexus RC F, White
2010 Lexus IS350C, USB
|
|
Reply With Quote
|
01-29-2014, 12:13 PM
|
#14
|
|
Member
|
|
Join Date: Jan 2011
Location: Texas
Posts: 273
|
|
Member
Join Date: Jan 2011
Location: Texas
Posts: 273
|
yes. but only in retrospect. First start of the morning, a very cold morning, I heard a high pitch squeal. I thought it was just because it was super cold and a belt was whining or something.
Drove 50 miles. Parked for 4 hours. Started back up and heard the vacuum swooshing and had all warning lights and truck was in limp mode.
__________________
2007 4runner SE V8 4WD: OME BP-51, SPC, Scion IM 2016+
2005 4runner SR5 V8 4WD: ICON Stage 1, Total Chaos UCA, Scion T1819 (SOLD )
1986 4Runner 4WD 22-RE: Full Rebuild, LCE Header, Custom Head, Supra AFM
|
|
Reply With Quote
|
01-29-2014, 12:16 PM
|
#15
|
|
Senior Member
|
|
Join Date: Sep 2009
Location: Gainesville, Virginia
Age: 41
Posts: 1,057
Real Name: Matt
|
|
Senior Member
Join Date: Sep 2009
Location: Gainesville, Virginia
Age: 41
Posts: 1,057
Real Name: Matt
|
Quote:
Originally Posted by superman3043
Really?? I've not had any issues with lights or limping since my relay bypass. Strange.
To the OP, the only piece I have to add is, if you're gonna go in and repair the system, order the AC Delco/GM P/N for the pump that is used on the Trail Blazers. Same part and will cost you a 3rd of what the Toyota part costs, per this:
http://www.tundrasolutions.com/forum...erride-1.1.pdf
which is the fix I used. The pump portion I'm referring to is at the end. Sorry to hear about your bum luck man. Good luck with it and keep us posted. If you do a full system tear down and repair, it'd be really cool if you documented it for us for future reference.
Maybe these FSM attachments will help.
|
Those FSM attachments are great! Good call on the GM part too - totally slipped my mind.
I'll try to make this short as not to detract too much from the OP's post but the 'P2445 - pump stuck off' just shows randomly (happened twice now on very COLD days on cold starts). Both times it's popped up after about 20 mins of driving at highway speeds so it doesn't show until the engine is at temp and way past initial startup. In my research I've found some unsubstantiated claims that a water fouled pump can do this intermittently as the ECU will try to run the pump. Speculation is that the ECU does random checks even though it has been told not to run via the bypass. Paul (who makes the bypass modules) has also noted that colder temps sometimes alter the bypass functionality causing the AIP to run by default. He's actively pursuing a fix for these unique cases.
__________________
HokieRunner 2005 4Runner Sport Edition V8 4x4 Silver Build Thread
Radflo 2.5 F 700#/R 220# / Desert Racing Uniball UCA / 285/70/17 Duratrac on 17x8 Konig Six Shooter / RCI Full Skids / BAMF LCA Skid / Shrockworks 3 Hoop Bumper / Custom WhiteKnuckle Sliders / Custom WMW Roof rack / CVJ Reman'd Axles / 06+ Facelift / Custom sound system / AIP Bypass / LED Gauges,Dash,Interior / Wiring, aux. lighting, dual battery, custom cargo box in progress...
|
|
Reply With Quote
|
Thread Tools |
|
Display Modes |
Rate This Thread |
Linear Mode
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
|