Jump to content

P0498- Solenoid

RPaul
 Share

Recommended Posts

RPaul Enthusiast

RPaul

Posted
Posted

Having a code p0499 and now PO 498 pop up. The code seems to in the past have indicated a clogged or dirty evap solenoid filter material, but can’t find any info on newer models.

 

changed evap solenoid gm part # 84148817.

 

Code is still showing after cleaning check engine light.

 

Any gm mechanic on here who can take a stab at it? Trucks out of warranty and the dealer can’t even look at it for a week..:

garyo Enthusiast

garyo

Posted
Posted

Not a GM expert, but check out  these two links:

https://www.obd-codes.com/p0498

https://www.obd-codes.com/p0499

 

I would try and activate the solenoid with 12v and listen to whether it is actually clicking. Then inspect the connector looking for dirt, corrosion, or maybe a pin backing out. Follow back the wiring as far as you can to see if anything is damaged.

 

Good luck,

AND please report back when you get it fixed, we really want to know!

garyo

RPaul Enthusiast

RPaul

Posted
  • Author
Posted (edited)

Thanks, I’ve read everything I can find and all pointed to wiring or solenoid.

 

keep digging and found a video on rumble in which a 2019 sierra had a bad fuel pump power control module. The fuel pump module is what sends voltage to solenoid. Found one on eBay since it’s out of stock everywhere.

 

sort of throwing parts at this one..

 

when it arrives we will see 

Edited by RPaul
RPaul Enthusiast

RPaul

Posted
  • Author
Posted

Well problem solved. Thank god for this guy-


 

https://rumble.com/vrqhad-p0498-2019-sierra-silverado-1500-evap-vent-solenoid-dtc-obd-obdii.html

 

bought a new fuel pump control module. Truck running much smoother as well, it may have to do with the fuel tank being over or under pressurized with vent solenoid not working? Could be wrong but the truck is running noticeably smoother this morning.


part no:13540028

 

 

garyo Enthusiast

garyo

Posted
Posted

RPaul,

 

I big thanks for posting both the video and the solution! This may really help someone one day.

 

garyo

  • 1 month later...
Mcandrew67 Enthusiast

Mcandrew67

Posted
Posted

Having the exact same issue, have 3 codes, P0499, P0449, P0498 on my 2019 SIlverado, I am going to try this to see if it is the issue.

Will get back and let you know once I find the part as everywhere I look online it says out of stock or on back order

  • 2 months later...
Mcandrew67 Enthusiast

Mcandrew67

Posted
Posted

The fuel pump control module fixed my issue. Found it on Ebay. Called my dealer first and they said, "Oh that's a specialty item we can't get that" seriously??? The dealer on Ebay had it to me in 3 days.

 

  • 5 months later...
Andre Roy New Member

Andre Roy

Posted
Posted

I'm getting the P0449 which points to the EVAP Solenoid. The part checks fine and the dealer says it's in the wiring. They want $600 to troubleshoot the wiring. I'm thinking I may try to replace the fuel pump control module for $52. Very frustrating for a fairly new truck. Unfortunately beyond the 36k warranty.

  • 1 year later...
KFinn New Member

KFinn

Posted
Posted

I ended up replacing the fuel pump control module (13540028 is the new part and replaced 13526238). My 2019 High Country with the 6.2DI truck started idling rough and the check engine light came on. It has 113k miles. It set codes P0498 and P0499 as well as P0449. I replaced the evap control solenoid assembly and the purge valve but that didn’t fix everything. It got rid of the codes except P0498. 
 

The replacement of the fuel pump control module resolved my issue and the truck is running better and no codes. 
 

I got two modules, one from a dealer and one across eBay from China. The China unit is original and has a sharpie mark over the Made in Mexico wording. I’ll hang onto the other as a spare!

SilveradoRST Enthusiast

SilveradoRST

Posted
Posted
1 hour ago, KFinn said:

I got two modules, one from a dealer and one across eBay from China. The China unit is original and has a sharpie mark over the Made in Mexico wording. I’ll hang onto the other as a spare!

Would you be able to provide a photo?  Interested to see how the Made in Mexico was marked over, is it trying to say it was Made in China instead???

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,759
    Total Members
    8,960
    Most Online
    DM22
    Newest Member
    DM22
    Joined

  • Who's Online   1 Member, 0 Anonymous, 2,406 Guests (See full list)

  • Latest Articles

  • Posts

    • B14Sierra
      Cam chain tensioner question

      By B14Sierra · Posted

      So I'm in the middle of a DOD AFM delete on my 6.2 L86 Sierra. I had a pick holding the tensioner but after I got the Cam phaser gear off I was cleaning off all the rtv and apparently I didn't have the pick seated far enough in. I bumped it and the tensioner sprang forward.  I think everything is good but I want a second opinion. The top of the tensioner is just a looped piece of plastic that rides in that channel right? There is no spring or anything is there? I got the gear and chain back on and it seems tight and everything looks right. I'm hoping nothing fell out.
    • dna9656
      No low range 4 x 4

      By dna9656 · Posted

      My 2015 1500 LTZ Silverado suddenly won't go into 4 x 4 low. It will go into 4 x 4 high.
    • asilverblazer
      Transmission Woes :-(

      By asilverblazer · Posted

      Yep, just a quick reference point.    My main point being I’d do a thousand other things before I’d pay 10k for a transmission.    Speaking in ignorance cause I don’t look at these trucks, what is it worth? 20k?
    • asilverblazer
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By asilverblazer · Posted

      I think users are going to want to pick their monitored parameters, which parameters they want to see first.    It should probably start with baseline at a minimum and adjust to learned, but be able to overlay baseline for comparison.   A simple severity level would be able to determine what type of alerting is appropriate or user selectable.    Why not use the OBD port though?   I think a phone connection would be a good idea, push notifications type deal.   Number 1 issue is having data is useless if you don’t know what the data should be under normal conditions. 
    • Chuck FB
      summer road trips in the 2026 2500HD

      By Chuck FB · Posted

      I thought I would use your thread and add to it as I just did my first longer drive with my truck in the last couple of days. I drove from the Grande Prairie area of Alberta down to Edmonton and most of where I drove in the city was the ring road so fairly free flowing but a bit of stop and go as well in the city. Stayed the night and returned home and not too many stops along the way each way but every restart and certainly every cold start sets it back for fuel mileage. Why I say that is I see some people will cherry pick a fuel mileage leg after the vehicle had been warmed up driveline wise before hand and its a forgiving ( easy rolling drive leg for example ) and call that their fuel mileage which can give a false perception of reality. I was not heavily loaded at all but never the less the flip bak cover, rubber bed mat, various tools etc and extra jerry cans of fuel all way up to a few hundred pounds of dead weight so its not an empty truck. The cold inflation tire pressures are set more near the freezing point so once they are warmed up driving I was showing 45 front and over 40 rear and realize high inflation pressures would help a little in fuel mileage but certainly not the ride on our crap sections of highway. The weather was good so was not raining as that can really drag mileage down, in fact I had a bit of a tail wind on average driving home. Most people on here would never have driven on that freeway to visualize it but its got a fair bit of rolling type of landscape with numerous river valleys. For the most part I had it on cruise set to 62 although kicking it off if I caught it in time before it started down shifting and self braking going down the grades. Most of the more substantial grades its shifting into 7th I believe as 8th just doesn't have it. Total distance round trip was 643 miles and my overall average and I did refuel three times in all, figured out to 17.65 miles per US gallon. My best fuel mileage section refuel within all of this figured out to 18.46 and these are all hand calculated figures. I find if anything that the trucks computer can be over optimistic, sometimes its pretty close but other times its stretching it. On paper persay in theory the truck would have just about made it on fumes for that whole drive without refueling once.    Which made me think of the topic thread of the wonder if these trucks could do 20 mpg and that is a good question, certainly would have to be on an easy going flat highway, no head wind, the right temperature, not packing around a bunch of dead weight and puttering along even slower than I was I would suspect and going steady and not stopping to smell the flowers or take a piss !. It probably is possible but not without effort to attain that with the wind resistance and weight of these trucks. Of course on my drive most people are passing me if they have the power as per loaded highway tractors, never mind a lot of speedy vehicles but the speed limit is 68 and most are at or well over that. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...