Transmission problems?

Asked by GuruCBCC2 Feb 16, 2019 at 12:00 AM about the 2004 Chevrolet Trailblazer LS RWD

Question type: Maintenance & Repair

I have a question for anyone who can help? I'm
looking into buying a 2004 Chevy trailblazer ls with
the 4.2 engine. The owner told me that it runs amd
drives fine but he's having to add around 1/2 quart
of transmission fluid once a month. That sounds
like a bad problem to me? I don't want to get into
something costly. Thanks anyone for helping.

2 Answers


If your having to add fluid, you have to find out where it's going. It's either the pan gasket or the front seal in the tranny. If it's the pan gasket it's an easy fix ,however the front seal the tranny is going to have to come out to fix . It could be the dipstick tube. It contains O rings, it could possibly be the rear seal. It's easier to determine the fix once you know where the fluid is going. This of course are just options and my opinion. I would spray the transmission off and pay attention to where the leak was.

1 people found this helpful.

Just make sure you take into consideration you might be paying for a costly transmission repair with this particular vehicle, so don't overpay for it.

1 people found this helpful.

Your Answer:


Looking for a Used Trailblazer in your area?

CarGurus has 324 nationwide Trailblazer listings starting at $2,995.

Postal Code:

Chevrolet Trailblazer Experts

  • #1
  • #2
    G A Arne
  • #3
View All

Find great deals from top-rated dealers


Related Models For Sale

Used Chevrolet Blazer
576 listings starting at $28,993
Used Chevrolet Tahoe
13 Great Deals out of 489 listings starting at $4,998
Used Jeep Grand Cherokee
55 Great Deals out of 3,856 listings starting at $690
Used Chevrolet Silverado 1500
89 Great Deals out of 4,655 listings starting at $4,995
Used Chevrolet Equinox
75 Great Deals out of 3,925 listings starting at $1,600
Used Ford Explorer
26 Great Deals out of 1,844 listings starting at $2,490
Used GMC Envoy
23 listings starting at $3,600
Used Ford F-150
107 Great Deals out of 8,254 listings starting at $2,990
Used Dodge Durango
42 Great Deals out of 1,331 listings starting at $3,990
Used Ford Escape
153 Great Deals out of 5,953 listings starting at $1,595

Used Cars for Sale

2021 Chevrolet Trailblazer For Sale
298 listings starting at $24,888
2009 Chevrolet Trailblazer For Sale
4 listings starting at $5,900
2008 Chevrolet Trailblazer For Sale
5 listings starting at $3,450
2006 Chevrolet Trailblazer For Sale
3 listings starting at $3,600

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.