Evap Questions

70

Asked by Nov 25, 2015 at 01:05 PM about the 1997 Chevrolet C/K 1500 Cheyenne Standard Cab SB

Question type: Maintenance & Repair

I am getting evap/emissions fault codes...I plan to replace the evap canister
and the evap purge solenoid which is located on the side of the throttle
body on my vortec 5.7.  I am blowing out (light compressed air) all the evap
lines that run from tank to these devices.  My question:  is there a evap
device, like some kind of evap valve located near the tank, or above it.  I
would prefer not to drop the tank to look for it, but I want to be thorough
and replace all the evap devices.  This truck went for a "swim" a few
months back, and unfortunately,  I am sure the water ingress in the evap
devices and lines have caused this fault code...the truck actually runs fine,
but I need to make these codes go away and solve them.  Anyone know
where I can source these parts for some cheap dollars...the can itself it like
almost 100 bucks new.  A can of charcoal and a valve...how bout them
apples...expensive charcoal no doubt.  the main thing, I need  to know if
there is some kind of evap device or switch or valve that is located top of
tank,..I;'ve been under the truck several times with inspection mirror, and
light and I can't seem to find anything that looks like a evap switch or
valve...I traced the overfill pipe, looking for it that way also, and I came up
donuts.  any ideas?

2 Answers

56,885

Here is a generic EVAP diagram that might help. Have you added a water remover to your fuel tank?

70

thanks for the generic, but I am looking for anyone that can confirm whether my specific vehicle has an evap device at or near the tank. On the water question, I have a buddy remove all the fuel and fluid from the tank (we have a fluid pump we used where I work, that is used to evacuate all fluids from fuel compartments at work, then we used a explosion proof blower to evap any and all vapors. I can say with confidence, that tank is free of water..I'm not a big fan of putting any kind of water remover products into fuel...they get combusted, and that can spell serious problems with valves, plugs, seals, etc..just never had the confidence to use any of them. I appreciate your feedback ...any ideas about the evap device in this specific vehicle at or near the tank would be appreciated. I could of course, just drop the tank, and go looking, but I am confident someone else here has some knowledge. kudo anyway friend!

Your Answer

Add photo

Related Questions

  • 97 chevy 5.7 cam crank relearn 45 answers

    When replacing the distributor on the 5.7 Chevy Vortec enginen, the instruction that came with the Distributor said that a code P1345 would be set, and that a Cam Crank relearn must be performed. Us...

    1997 Chevrolet C/K 1500 Silverado Standard Cab LB

    -

    Maintenance & Repair

  • IN REFRENCE TO MY QUESTION. 3 answers

    I WAS DRIVING THE TRUCK WHEN IT STOPPED COMPLETELY ON ME. I ALSO PUT SOME GAS IN THE DISTRIBUTOR ANDIT DIDNT START. I ALSO PULLED OUT TWO SPARK PLUGS AND THEYRE A BIT DIRTY COULD IT NEED A TUNEUP?

    Chevrolet C/K 1500

    -

    Maintenance & Repair

  • 1989 gmc c1500 question 2 answers

    I am looking for the abs fuse. It is not in the under dash fuse panel and there is no panel under the hood.

    Chevrolet C/K 1500

    -

    Maintenance & Repair

  • transmission acts like it goes into neutral when driving normally down the road. My question is what would cause this 2 answers

    My question is why does the 6 speed automatic transmission in my 2012 Chevy 1/2 ton 4x4 act like it shifts into neutral while driving along normally. The highest year it would let me select is a 99,...

    1999 Chevrolet C/K 1500 LS 4WD

    -

    Maintenance & Repair

  • Transmission questions

    Hello i have a question will a 4l80e transmission work on a 1994 k1500 4x4 chevy silverado

    1994 Chevrolet C/K 1500 Silverado Extended Cab LB 4WD

    -

    General

Search Chevrolet C/K 1500 Questions

Chevrolet C/K 1500 Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 3,230
#2 John Saffrahn
John Saffrahn
Reputation 2,480
#3 Rowefast
Rowefast
Reputation 1,970
View All

Related Models For Sale

Used GMC Sierra 1500
811 Great Deals out of 66,994 listings starting at $1,499
Used Ford F-150
2,257 Great Deals out of 209,069 listings starting at $1,499
Used Chevrolet C/K 2500
209 listings starting at $8,999
Used Dodge Ram 1500
447 Great Deals out of 11,375 listings starting at $700
Used Chevrolet Tahoe
574 Great Deals out of 27,584 listings starting at $1,500
Used Toyota Tacoma
519 Great Deals out of 39,818 listings starting at $1,995
Used Chevrolet Camaro
148 Great Deals out of 32,788 listings starting at $1,995
Used Chevrolet C/K 3500
254 listings starting at $3,550
Used Chevrolet S-10
11 Great Deals out of 1,350 listings starting at $1,595
Used Dodge Ram 2500
141 Great Deals out of 5,327 listings starting at $2,500