99gmc savana conversion van idles high and runs ruff

Asked by Jacqueline May 26, 2017 at 11:51 PM about the 1999 GMC Savana G1500 Passenger Van

Question type: Maintenance & Repair

The original motor was replaced. Then the computer,
distributor cap, oil change, and tune up. Now that it finally
cranks and starts, it idles high and runs rough. The motor
came from a 1997 chevy express in which the
transmission went out. Please help!!

3 Answers
40,145

James answered 7 years ago

clean the throttle plate, the idle air valve needs cleaned or replaced, also run sea foam [auto parts] threw the tank, some in oil also , removes gum deposits

Mark helpful

Your Answer:

Related Questions

Savana

Looking for a Used Savana in your area?

CarGurus has 21 nationwide Savana listings starting at $5,900.

Postal Code:

Shortcuts

Search GMC Savana Questions

CarGurus Experts

  • #1
    GuruKFHV3
    Reputation
    300
  • #2
    Calirats Gomez
    Reputation
    210
  • #2
    gamp
    Reputation
    210
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Express
6 Great Deals out of 43 listings starting at $12,500
Used GMC Savana Cargo
22 Great Deals out of 411 listings starting at $5,800
Used GMC Sierra 1500
148 Great Deals out of 7,258 listings starting at $3,950
Used Chevrolet Express Cargo
19 Great Deals out of 357 listings starting at $989
Used GMC Yukon
16 Great Deals out of 929 listings starting at $1,225
Used GMC Yukon XL
14 Great Deals out of 683 listings starting at $13,950
Used Ford E-Series
5 Great Deals out of 137 listings starting at $2,495
Used Chevrolet Silverado 1500
202 Great Deals out of 5,975 listings starting at $2,975

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.