Click here to visit LS1Tech
Click here to visit Performance Trucks
Click here to visit Mod Motor Tech
Click here to visit Modern Hemi

PerformanceTrucks.net Forums  

Go Back   PerformanceTrucks.net Forums > GENERAL MOTORS SPECIFIC FORUMS > GMT 800 & Older GM General Discussion
Sign in using an external account
Register Forgot Password?
Register Albums FAQ Members Calendar Search Today's Posts Mark Forums Read VendorsUsed CarsGarageStore TSBs & Recalls
Welcome to PerformanceTrucks.net Forums

Reply
 
LinkBack Thread Tools Search this Thread
Old 01-23-2006, 08:13 AM   #1
Trader Rating: 0
Teching In
 
Join Date: Dec 2005
Location: MS Gulf Coast
Posts: 37
Default P0442 on 99 Silverado (5.3L)

I have a 99 z71 silv. w/a 5.3L automatic. I have been popping code P0442 on this thing for a while and it is starting to anoy me.

Can anyone give me an idea as to where to look to fix this problem??

(P0422 = EVAP Emm. Control Sys Leak {small})
Also, it has 131,000 + miles on it.

THANX

__________________
//
Love my 99z71 w/leather/power everything & ex-cab step-bed.
99z71leather is offline   Reply With Quote
Old 01-23-2006, 09:40 AM   #2
Trader Rating: 19
PT's Slowest Truck

 
budhayes3's Avatar
 
Join Date: Apr 2004
Location: Hackensack, NJ
Posts: 17,872
Default

Easiest thing to check is the gas cap/ gas cap gasket. If the gas cap isn't sealing, you will get an EVAP code for a small leak.
__________________
Billy
[SIGPIC][/SIGPIC]
[URL=http://www.cardomain.com/memberpage/648999]My CarDomain Page[/URL]
[FONT=Garamond]99 5.3 Z71 RC/SB - [COLOR="Blue"]FLT Level7 65E[/COLOR], [COLOR="Purple"]Circle-D Billet 258mm 2B Multi-Disc[/COLOR], Comp 206/212 515/520 114, LS6 Springs, Harland Sharp 1.7's, [COLOR="Red"]BlackBear 02 PCM[/COLOR], 02 Injectors, 160* stat, 05 E-fans, Nelson Harness, Volant CAI w/ Ram Air, StainlessWorks Headers and !Catted! Y-Pipe, DMH 3" E-Cutout, 18" Magnaflow dumped over axle, 3.73 G80, Dropped on Gibbs 20's [B]**H/C LQ9, 4.10's, and TruTrac eventually**[/B] [/FONT]
budhayes3 is offline   Reply With Quote
Old 01-23-2006, 09:44 AM   #3
Trader Rating: 0
Teching In
 
Join Date: Dec 2005
Location: MS Gulf Coast
Posts: 37
Default

That was first thing I did...In fact, I went and purchased a new Locking cap since I live on the Gulf Coast anyway. (still don't trust the out of towners)
__________________
//
Love my 99z71 w/leather/power everything & ex-cab step-bed.
99z71leather is offline   Reply With Quote
Old 01-23-2006, 12:06 PM   #4
Trader Rating: 2
formerly 1BADC10 (12/14/2011)
 
95ImpSS's Avatar
 
Join Date: Aug 2005
Location: TX
Posts: 2,134
Default

Cap would've been my first thought (b/c it's easiest to check). Check out this link to get a general idea as to what's going on with the EVAP system, and what to troubleshoot:

http://www.tankota.net/repair/Repair...3/cip0442p.pdf
__________________
'86 Silverado C10 --- Bolt-on 5.3L/4L65E/Wheatley Tuned... SOLD 07/31/2009
'95 Impala SS --- Basic Low $$$ Mods...

http://i30.photobucket.com/albums/c326/zro26t_225/ImpSSC10SS.jpg

Last edited by 95ImpSS; 01-23-2006 at 12:06 PM. Reason: Adding link...
95ImpSS is offline   Reply With Quote
Old 01-23-2006, 12:08 PM   #5
Trader Rating: 6
TECH Fanatic
 
04BlackSilverado's Avatar
 
Join Date: Jan 2004
Location: New England
Posts: 1,441
Default

I have that same code keep comming up in my truck as well. I am not sure of what the problem is either.

The link above dosent work....
__________________
04 RCSB 6.0L L92/L76 2/4 Drop
04BlackSilverado is offline   Reply With Quote
Old 01-23-2006, 08:43 PM   #6
Trader Rating: 0
Teching In
 
Join Date: Dec 2005
Location: MS Gulf Coast
Posts: 37
Default

I went to Advance Auto Parts and purchased the Actron OBD II so I could clear those little anoyances, but when it started to occur weekly, I thought I would check with everyone and see what they think.
__________________
//
Love my 99z71 w/leather/power everything & ex-cab step-bed.
99z71leather is offline   Reply With Quote
Old 01-24-2006, 03:48 AM   #7
Trader Rating: 5
TECH Fanatic
 
ridnlow's Avatar
 
Join Date: Sep 2003
Location: Mobile, AL
Posts: 1,073
Send a message via AIM to ridnlow
Default

I dunno if this will help you out or not, but worth a shot..

http://gearchatter.com/viewtopic9351...5b9660e6a9ae1c
__________________
2008 GMC Sierra CCSB
ridnlow is offline   Reply With Quote
Old 01-24-2006, 07:31 AM   #8
Trader Rating: 19
PT's Slowest Truck

 
budhayes3's Avatar
 
Join Date: Apr 2004
Location: Hackensack, NJ
Posts: 17,872
Default

The charcoal cannister is right on the driver's side next to the frame rail, behind the gas tank. Take a peek and see if any hoses got disconnected or maybe a rock jumped up and cracked the cannister.
__________________
Billy
[SIGPIC][/SIGPIC]
[URL=http://www.cardomain.com/memberpage/648999]My CarDomain Page[/URL]
[FONT=Garamond]99 5.3 Z71 RC/SB - [COLOR="Blue"]FLT Level7 65E[/COLOR], [COLOR="Purple"]Circle-D Billet 258mm 2B Multi-Disc[/COLOR], Comp 206/212 515/520 114, LS6 Springs, Harland Sharp 1.7's, [COLOR="Red"]BlackBear 02 PCM[/COLOR], 02 Injectors, 160* stat, 05 E-fans, Nelson Harness, Volant CAI w/ Ram Air, StainlessWorks Headers and !Catted! Y-Pipe, DMH 3" E-Cutout, 18" Magnaflow dumped over axle, 3.73 G80, Dropped on Gibbs 20's [B]**H/C LQ9, 4.10's, and TruTrac eventually**[/B] [/FONT]
budhayes3 is offline   Reply With Quote
Old 01-24-2006, 08:14 AM   #9
Trader Rating: 9
Meth Addict
 
slowec's Avatar
 
Join Date: Jun 2004
Location: Brunswick, Ga
Posts: 2,840
Default

Swap back to stock gas cap clear codes and retest. seemn this alot with locking caps. Did your prob start after the new cap? Keep us posted.
__________________
00 GMC,LQ4, stock48 pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing96 KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, 3.42, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Yank SC3000, built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, Nonnie/slowec S/D tune, Gadgetized 2.5bar sensor, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 1.83 7.00@103 10.8@129
slowec is offline   Reply With Quote
Old 01-24-2006, 12:08 PM   #10
Trader Rating: 0
Teching In
 
Join Date: Dec 2005
Location: MS Gulf Coast
Posts: 37
Default

Quote:
Originally Posted by budhayes3
The charcoal cannister is right on the driver's side next to the frame rail, behind the gas tank. Take a peek and see if any hoses got disconnected or maybe a rock jumped up and cracked the cannister.

How much would a new cannister cost??....a buddy of mine that used to be a mechanic before joining the military suggested replacing that due to the mileage on the vehicle.
__________________
//
Love my 99z71 w/leather/power everything & ex-cab step-bed.
99z71leather is offline   Reply With Quote
Old 01-24-2006, 12:08 PM
PerformanceTrucks
Ford F150




Paid Advertisement
Reply

Tags
2004, 2006, 53l, 99, check, chevy, code, control, emm, evap, leak, obd, p0422, p0442, silveardo, silverado, sys


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 10:08 PM.

 



Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2010, Crawlability, Inc.

PerformanceTrucks.net and InternetBrands, Inc. are not affiliated with the Ford Motor Company