05-25-2016, 08:02 AM
|
#1
|
|
Member
|
|
Join Date: Oct 2013
Location: Michigan
Posts: 50
|
|
|
Member
Join Date: Oct 2013
Location: Michigan
Posts: 50
|
Code P0442 showed up
Finally got the code number of P0442. It lists the following possibilities - defective fuel cap, EVAP cannister, purge or vent solenoid defective, vacuum leak at engine.
Any ideas which one? What do I look at first? I have an 02 limited. Will it hurt the vehicle if I continue driving it?
|
|
 Reply With Quote
|
|
05-25-2016, 08:25 AM
|
#2
|
 |
Member
|
|
Join Date: Jul 2014
Location: Brookville, PA
Posts: 137
|
|
|
Member
Join Date: Jul 2014
Location: Brookville, PA
Posts: 137
|
from the FSM as you stated some of the possible causes. I have the same code, could be a long list of things. Will not hurt the vehicle. could lose fuel mileage and be rough running.
__________________
MINE - 97' SR5 manual (Desert Dune Metallic)
HER's - 14' limited (Altitude Black)
|
|
|
Reply With Quote
|
|
05-25-2016, 08:33 AM
|
#3
|
|
Senior Member
|
|
Join Date: Mar 2014
Location: Trying to figure this out
Posts: 1,462
|
|
|
Senior Member
Join Date: Mar 2014
Location: Trying to figure this out
Posts: 1,462
|
Quote:
Originally Posted by oncewaspfd
What do I look at first? Will it hurt the vehicle if I continue driving it?
|
I would reseat your gas cap first.
No it won't hurt if you continue driving with this check engine code short term.
|
|
|
Reply With Quote
|
|
05-25-2016, 08:45 AM
|
#4
|
 |
Senior Member
|
|
Join Date: Sep 2011
Location: Austin, Texas
Posts: 3,151
|
|
|
Senior Member
Join Date: Sep 2011
Location: Austin, Texas
Posts: 3,151
|
Quote:
Originally Posted by oncewaspfd
Finally got the code number of P0442. ...
|
If reset how long before the cel shows up again (miles/time)?
Once every few months mine will get a 440 but only when wheeling offroad slow and vehicle rocking back/forth on rocks/ruts/holes. Reset and won't come back for months. Despite that all works as it should. Hmmm. 
__________________
2001 Limited 4WD - 346+K - SunfireRed\Thunder Cloud; - 265/75/16 Michelin A/T2s - Fat Pat's 1.5" BL - StopTech ANGLED rotors - In series 699 trans cooler, New Yota1 transmission, All new OEM suspension front to rear.
|
|
|
Reply With Quote
|
|
05-25-2016, 09:01 AM
|
#5
|
 |
Member
|
|
Join Date: Mar 2016
Location: North Texas
Posts: 342
|
|
|
Member
Join Date: Mar 2016
Location: North Texas
Posts: 342
|
If the 442 is the small leak code, it could be a loose or bad gas cap. Absent that, visually inspect all the evap lines under the hood and around the canister on the driver side.
__________________
-2005 4Runner Limited V8 AWD - Toytec Boss Suspension, SPC UCAs, 285/70/17 Level 8 MK Wheels (17x8, -10), Tandem Rock Sliders
-1998 LX470 (Stock)
www.KeenanOffroadFab.com
|
|
|
Reply With Quote
|
|
05-25-2016, 09:12 AM
|
#6
|
 |
official vendor
|
|
Join Date: Aug 2013
Location: Eugene, OR
Posts: 5,310
Real Name: Mike
|
|
|
official vendor
Join Date: Aug 2013
Location: Eugene, OR
Posts: 5,310
Real Name: Mike
|
Start with the gas cap, and get an OEM. I had the same thing happen about 1 month after purchasing my 4runner. I replaced it with one from Autozone, and it only lasted about a year. Put an OEM on over a year ago, and no issues since.
__________________
|
|
|
Reply With Quote
|
|
05-25-2016, 11:11 AM
|
#7
|
|
Member
|
|
Join Date: Oct 2013
Location: Michigan
Posts: 50
|
|
|
Member
Join Date: Oct 2013
Location: Michigan
Posts: 50
|
I'll start with the gas cap. I checked it this morning and the fuel tank was pressurized. First time for this. Does it mean something?
|
|
|
Reply With Quote
|
|
05-25-2016, 10:07 PM
|
#8
|
 |
Senior Member
|
|
Join Date: Dec 2009
Location: SLC, UT
Posts: 1,011
|
|
|
Senior Member
Join Date: Dec 2009
Location: SLC, UT
Posts: 1,011
|
Quote:
Originally Posted by oncewaspfd
I'll start with the gas cap. I checked it this morning and the fuel tank was pressurized. First time for this. Does it mean something?
|
Nope. Doesn't mean the Evap system is not leaking. The charcoal canister can be leaking inside itself and throw the code.
__________________
2015 T4R TRD Pro in super white, Morimoto 4300K HID kit, Auer Engineering / Toyota LED DRL/Fogs 2-in-1's, TRD drop in air filter, WeatherTech front and back liners.
2002 T4R SR5 4WD Onyx Black Sport Edition w/Leather. Gone but not forgotten.
|
|
|
Reply With Quote
|
|
05-26-2016, 01:50 AM
|
#9
|
 |
Senior Member
|
|
Join Date: Oct 2014
Location: Northern California
Age: 48
Posts: 2,160
Real Name: Woody
|
|
|
Senior Member
Join Date: Oct 2014
Location: Northern California
Age: 48
Posts: 2,160
Real Name: Woody
|
Quote:
Originally Posted by oncewaspfd
Finally got the code number of P0442. It lists the following possibilities - defective fuel cap, EVAP cannister, purge or vent solenoid defective, vacuum leak at engine.
Any ideas which one? What do I look at first? I have an 02 limited. Will it hurt the vehicle if I continue driving it?
|
As others have stated, there is a list of things that could be your cause. In my case it was a hairline crack in the EVAP canister. I fixed it by pulling it out and using some RTV around the bottom.
Might not be your issue, but it if is, you might be able to make a cheap repair instead of replacement if your trouble shooting gets you to the EVAP canister.
And fixed...
__________________
"Variety is for your mind, not your body " —OS
|
|
|
Reply With Quote
|
|
05-26-2016, 03:31 PM
|
#10
|
|
Member
|
|
Join Date: Oct 2013
Location: Michigan
Posts: 50
|
|
|
Member
Join Date: Oct 2013
Location: Michigan
Posts: 50
|
Thanks everyone. I found a Jack in the seal for the gas cap. Ordered it from the dealership and will install tomorrow. I disconnect the battery and hope for the best.
|
|
|
Reply With Quote
|
|
05-27-2016, 10:25 AM
|
#11
|
|
Member
|
|
Join Date: Oct 2013
Location: Michigan
Posts: 50
|
|
|
Member
Join Date: Oct 2013
Location: Michigan
Posts: 50
|
Got my new gas cap from the dealership today. Found out I was missing the rubber O Ring. Hope this solves the problem.
|
|
|
Reply With Quote
|
|
06-06-2020, 02:52 AM
|
#12
|
|
Member
|
|
Join Date: Feb 2010
Location: San Diego, CA
Posts: 59
|
|
|
Member
Join Date: Feb 2010
Location: San Diego, CA
Posts: 59
|
My P0442 popped up in January with 218k miles at sea level, i replaced the gas cap with an OEM one, came back again in March with 220.6k miles at 6,000 feet altitude (i cleared it without doing anything - hoping it was altitude related) then it just popped up again with 222.1k miles tonight again at sea level. I guess I'll look into the charcoal canister and troubleshoot as this guy suggests on youtube? YouTube
Sounds like that small crack on the bottom is common and RTV is a strong enough fix vs buying a new part?
__________________
2002 4runner SR5 Sport 2wd Black
|
|
|
Reply With Quote
|
|
06-06-2020, 05:44 PM
|
#13
|
 |
Member
|
|
Join Date: Oct 2006
Location: Rocklin, CA
Posts: 884
|
|
|
Member
Join Date: Oct 2006
Location: Rocklin, CA
Posts: 884
|
Quote:
Originally Posted by t4rain
My P0442 popped up in January with 218k miles at sea level, i replaced the gas cap with an OEM one, came back again in March with 220.6k miles at 6,000 feet altitude (i cleared it without doing anything - hoping it was altitude related) then it just popped up again with 222.1k miles tonight again at sea level. I guess I'll look into the charcoal canister and troubleshoot as this guy suggests on youtube? YouTube
Sounds like that small crack on the bottom is common and RTV is a strong enough fix vs buying a new part? |
Its the check valve on top of the tank. The gasket fails and the top of the valve develops a hair line crack. I just did this last week.
Video: YouTube
Parts needed:
New Genuine Toyota 4Runner Fuel Tank Valve Assembly OE 7739035010 | eBay
Toyota OEM Fuel System Check Valve Gasket 77177-33010 Factory Sold Individually | eBay
You have to drop the tank
__________________
2002 SR5 4WD
deckplate + ISR, Airlift 1000, OME 881/890, Goodyear Wrangler Duratrac 265/75/16C
Tundra 231mm Brakes - yes they DO fit the stock 5 spoke rims - Stubbs Welding HD-SKO sliders.
Last edited by twitchee2; 06-06-2020 at 05:48 PM.
|
|
|
Reply With Quote
|
|
06-07-2020, 10:55 PM
|
#14
|
|
Member
|
|
Join Date: Feb 2010
Location: San Diego, CA
Posts: 59
|
|
|
Member
Join Date: Feb 2010
Location: San Diego, CA
Posts: 59
|
Yikes, hopefully mine is just the canister! I don't have that kind of tool inventory so mine will go to the shop if i need to drop the tank or do anything that involved
Quote:
Originally Posted by twitchee2
|
__________________
2002 4runner SR5 Sport 2wd Black
|
|
|
Reply With Quote
|
|
06-08-2020, 11:22 AM
|
#15
|
|
Member
|
|
Join Date: Oct 2006
Location: Rocklin, CA
Posts: 884
|
|
|
Member
Join Date: Oct 2006
Location: Rocklin, CA
Posts: 884
|
Quote:
Originally Posted by t4rain
Yikes, hopefully mine is just the canister! I don't have that kind of tool inventory so mine will go to the shop if i need to drop the tank or do anything that involved
|
All you need a jack, 14mm, 12mm, extension, pilers screw, drivers and some patience. Its actually not that hard of a job. just kind of tedious and make sure you have the tank nearly empty.
__________________
2002 SR5 4WD
deckplate + ISR, Airlift 1000, OME 881/890, Goodyear Wrangler Duratrac 265/75/16C
Tundra 231mm Brakes - yes they DO fit the stock 5 spoke rims - Stubbs Welding HD-SKO sliders.
|
|
|
Reply With Quote
|
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
|
|
|
|
Linear Mode
