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


Asked by carolyn37766 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

Tom Demyan

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.

Your Answer

Add photo

Related Questions

Search Chevrolet Chevy Van Questions

Chevrolet Chevy Van Experts

#1 John Saffrahn
John Saffrahn
Reputation 240
#2 Tom Demyan
Tom Demyan
Reputation 110
#3 frscke1
Reputation 100
View All

Related Models For Sale

Used Chevrolet Express Cargo"
128 Great Deals out of 4,572 listings starting at $1,999
Used Chevrolet Express"
58 Great Deals out of 3,686 listings starting at $1,950
Used Chevrolet Astro Cargo Van"
141 listings starting at $2,995
Used Dodge Ram Van"
130 listings starting at $1,997
Used Ford E-150"
7 Great Deals out of 318 listings starting at $2,495
Used Chevrolet Astro"
9 Great Deals out of 385 listings starting at $2,500
Used GMC Savana"
10 Great Deals out of 985 listings starting at $6,900
Used Ford Econoline Cargo"
19 Great Deals out of 688 listings starting at $2,900
Used Chevrolet Venture"
4 Great Deals out of 819 listings starting at $600
Used Chevrolet Silverado 1500"
1,777 Great Deals out of 147,261 listings starting at $2,300