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

299,725

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 people found this helpful.

Your Answer:

Chevrolet Chevy Van Experts

  • #1
    John Saffrahn
    Reputation
    370
  • #2
    COMETGUY61
    Reputation
    260
  • #3
    Taylor Januskiewiecz
    Reputation
    210
View All

Related Models For Sale

Used Chevrolet Express Cargo
99 Great Deals out of 5,404 listings starting at $2,450
Used Chevrolet Express
25 Great Deals out of 4,290 listings starting at $3,995
Used GMC Savana
18 Great Deals out of 1,040 listings starting at $3,995
Used Dodge Ram Van
111 listings starting at $985
Used Chevrolet Astro
138 listings starting at $1,600
Used GMC Savana Cargo
43 Great Deals out of 2,731 listings starting at $2,500
Used Chevrolet Astro Cargo
111 listings starting at $2,800
Used Chevrolet Suburban
324 Great Deals out of 22,043 listings starting at $1,800
Used Ford E-150
114 listings starting at $2,991

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.