1990 k1500

Asked by Brian Feb 05, 2018 at 05:53 PM about the 1990 Chevrolet C/K 1500 4WD

Question type: Maintenance & Repair

my truck runs ruff until i unplug the vacum line thr
big 1 on the back of the throttle body it dosnt cut
out but blows black smoke if i plug it in where its
supposed to be it idles for a second and shut off
and wont let me give it any fuel idk what it is

1 Answer
221,315

Rowefast answered 6 years ago

That hose runs the pcv valve system. Check the pcv. This is for crank case ventilation and needs to be hooked up.

Mark helpful

Your Answer:

Related Questions

  • 1990 k1500 1 Answer

    my 91 k1500 runs rough idles rough but when you first start it its not as bad but after a minute or two it cuts out every time you give it throttle and it barely idles at all

    1991 Chevrolet C/K 1500 4WD

    -

    Maintenance & Repair

  • 1990 gmc k1500 electrical problems 1 Answer

    I have a 1990 k1500 5.7 tbi the truck has no power in the cab no headlights and no 4 ways as well as the gages dont work ive check the main power block on the exterior fire wall and i have power in...

    1990 Chevrolet C/K 1500 Silverado 4WD

    -

    Maintenance & Repair

  • 1990 k1500 3 Answers

    how do i tell the difference between a 305 and 350 in my 1990 k1500 4x4

    1990 Chevrolet C/K 1500

    -

    General

  • 1990 Chevrolet k1500 tail light not working 1 Answer

    My 90 Chevy k1500 tail lights do not come on when turned on. I have no brake lights. The blinkers and flashers work but slowly. If the blinker or flashers are on and the brake is applied the bul...

    1990 Chevrolet C/K 1500 Stepside 4WD

    -

    Maintenance & Repair

  • 1990 k1500 1 Answer

    my truck runs ruff until i unplug the vacum line thr big 1 on the back of the throttle body it dosnt cut out but blows black smoke if i plug it in where its supposed to be it idles for a second and...

    1990 Chevrolet C/K 1500 4WD

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

1990 Chevrolet C/K 1500

Write a car review

Review another car

Shortcuts

Search Chevrolet C/K 1500 Questions

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    15,810
  • #2
    Rowefast
    Reputation
    9,540
  • #3
    John Saffrahn
    Reputation
    6,430
View All

Know more, shop wisely

Search

Related Models For Sale

Used GMC Sierra 1500
2,011 Great Deals out of 68,008 listings starting at $3,795
Used Ford F-150
6,183 Great Deals out of 134,804 listings starting at $1,900
Used Chevrolet C/K 2500
66 listings
Used Chevrolet Camaro
587 Great Deals out of 9,075 listings starting at $2,900
Used Chevrolet S-10
3 Great Deals out of 166 listings starting at $2,495
Used Chevrolet Corvette
801 Great Deals out of 12,696 listings starting at $2,800
Used Chevrolet C/K 3500
81 listings starting at $12,990

Used Cars for Sale

1999 Chevrolet C/K 1500 For Sale
11 listings
1998 Chevrolet C/K 1500 For Sale
37 listings
1997 Chevrolet C/K 1500 For Sale
36 listings
1996 Chevrolet C/K 1500 For Sale
39 listings
1995 Chevrolet C/K 1500 For Sale
37 listings

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.