350 motor was running rough at low speed and hard starting. runs great with mapp unplugged so i put in a new mapp, nsame cthing runs terrible when the mapp is plugged in and great when its unplugged?

Asked by Feb 03, 2017 at 03:54 PM about the 1990 Chevrolet Chevy Van

Question type: Maintenance & Repair

90 gmc 350

1 Answer

thank you

Your Answer

Chevrolet Chevy Van Experts

  • #1
    John Saffrahn
    Reputation
    360
  • #2
    COMETGUY61
    Reputation
    220
  • #3
    1977g10shorty
    Reputation
    210
View All

Related Models For Sale

Used Chevrolet Astro Cargo Van
123 listings starting at $2,542
Used Dodge Ram Van
107 listings
Used Ford E-150
140 listings starting at $3,650
Used Chevrolet Astro
234 listings starting at $1,995
Used GMC Vandura
11 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.