what would cause a trans "thud" sound when going from 1st to 2nd on automatic

Asked by Jun 01, 2012 at 12:28 AM about the 1998 Chevrolet Chevy Van

Question type: Maintenance & Repair

1999 astro van, at times, the transmission will "thud" as it changes from 1st to 2nd. It usually won't do it if you are just driving around town, but get out on interstate driving 65 mph and when getting off interstate everytime you stop and have the start up from a roll or complete stop the "thud" happens again. If I am just driving around town and speed has been maintained to 45 or below this never happens. {the "thud}  It has just started getting worse in the last month. What can it be and how much will it cost me?

1 Answer

261,995

First thing to check to see if the fluid is at the proper level, a low fluid level sometimes causes shifting issues. Look in your owners manual for the proper way to do this, the vehicle has to be warm and on a level surface and in park running. If that checks out, how is your fluid, dark and brown? Maybe time for a fluid /filter change? But worst case is you have to open the transmission up and your talking about a rebuild. $1500-$3500.

1 of 1 people found this helpful.

Your Answer

Chevrolet Chevy Van Experts

  • #1
    John Saffrahn
    Reputation
    360
  • #2
    COMETGUY61
    Reputation
    230
  • #3
    1977g10shorty
    Reputation
    210
View All

Related Models For Sale

Used Chevrolet Express Cargo
54 Great Deals out of 12,916 listings starting at $2,500
Used Chevrolet Express
68 Great Deals out of 5,724 listings starting at $3,500
Used Chevrolet Astro Cargo Van
121 listings starting at $1,999
Used Dodge Ram Van
104 listings
Used GMC Savana
5 Great Deals out of 1,161 listings starting at $7,300
Used Chevrolet Astro
3 Great Deals out of 212 listings starting at $1,595
Used GMC Savana Cargo
37 Great Deals out of 3,647 listings starting at $2,399
Used Chevrolet Tahoe
856 Great Deals out of 44,853 listings starting at $1,980
Used Ford E-150
148 listings starting at $2,995
Used Chevrolet Suburban
499 Great Deals out of 25,259 listings starting at $1,799

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.