Jump to content

Evap issues

Fourdegreediablo

Recommended Posts

Fourdegreediablo New Member

Fourdegreediablo

Posted
Posted

Hello everyone , very frustrated here.

I have a 2002 GMC Sierra 2500 HD and it is having Evap issues . Everytime I go to fill my gas tank up the pump clicks off . So I pulled the bed off to access the evap canister and replaced it and the vent solenoid . My problem I'm having is the old evap vent solenoid was just a vent , no solenoid to it . The new vent I picked up from Oreillys has a electrical connector and I've looked all over the truck trying to find the connector and can't find it . No codes are showing up on my scanner . My question is if I were to wire a connector to the solenoid where would I splice into ? From what I understand the vent solenoid closes for  EVAP test then re-opens for normal use .Could this be spliced into the purge solenoid circuit ? I also removed all the evap lines and fuel tank inlet lines and blew them out with compressed air . I did find a little dirt in the vent solenoid line , so I'm hoping the issue will be taken care of .

Please advise ...  

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      Thank you, I'll check that Autel scanner out and see if it will work for me! Ya I can see GM's point of view if they lower the psi set value for someone and the person sell's the truck and the new owner puts the factory tires back on then their could be liability issues cause the psi warning light wasn't coming on when the tires were under inflated for towing their load and then it might be able to be traced back to GM lowering it.
    • Chuck FB
      Tire psi

      By Chuck FB · Posted

      I had a similar but different response when I talked to the service manager where I bought my truck in that he said GM corporate won't allow them to lower the placard pressure setting as they would get their hand slapped but that of course they have the ability to make that change. His suggestion was simply go to a tire dealer or third party shop that is willing to reset the pressures lower. However I chose to buy a tpms tool and partly based off of this very forum as it had been proven to work on the 2024 model ( Global B system ) and while I could have paid lots for a full two way diag tool, I didn't want to spend that much and bought the recommended Autel TS 508 and it will reprogram the 2025 model and assume it should do the 2026 as well. However the tool is rather proprietary to reprogramming Autel tpms sensors so that is a function I will never use, where as a real two way scanner would have many uses but also have yearly subscriptions etc where this 508 is free updates for as long as they put updates out for the unit. In any event it worked to lower the placard pressures and I often use it to adjust my actual tire pressures although will check with a mechanical gauge as well sometimes just to make sure that tires tpms sensor isn't lying to me.    My suggestion is either buy a tool that you know will work to adjust the system or start out by getting the tire shop you bought your tires from to reset your truck and if after that you still want a unit to do it yourself, get one at that point. 
    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      Here is an image of a quick Google search about these tires on my truck and it's exactly same psi recommendation the Toyo tires company gave me!    I'm not looking for anyone else recommended psi or anything, I'm just looking to see if anyone knew a way to get rid of the factory low psi warning light, because I'm not running high psi and ruining my tires when I'm not towing! 
    • jgaudet99
      Tire psi

      By jgaudet99 · Posted

      60psi front and 80psi rear But I am not running the factory tire brand or size! it's load range F Toyo tires
    • newdude
      Tire psi

      By newdude · Posted

      Open the driver's door jamb.  What do the cold tire PSI ratings on the tire placard show?   I'm not saying to run it to those numbers, but I would like to know what it says.      

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...