transmission

Asked by Jun 10, 2016 at 10:20 AM about the 2004 Chevrolet TrailBlazer EXT LT 4WD SUV

Question type: Maintenance & Repair

Hi I've been having this issue for a while
and I'm looking for answers before I end
up giving the truck to a junk yard. Before
it was cranking up but it wouldn't really
move when I put in drive. It's also leaking
this milky color which means water is in it
right? Now it doesn't crank at all without a
jump so could that be the alternator?

5 Answers

92,955

So when it did run the transmission won't go into gear, the engine oil is a milky color and now it won't crank over unless jumped. So it probable needs a tranny overhaul, the engine will have to a least have heads removed to find out what has happened there, and the start/charging system needs to be tested. I would say that the repairs that it is going to need exceed the value of the the vehicle. You might want to think about finding a rich like yours that was totalled but has a good running gear and put that running gear in your rig, it would be a lot cheaper and you could still keep it.

1 of 1 people found this helpful.

The transmission fluid color is milky not the engine oil

And when I give it a jump and put it in drive it doesn't move.

237,735

Transmission fluid that looks like a pink milkshake means the transmission cooler has failed and coolant has entered the transmission. Your coolant will also be the same color. If you catch this in time, you can flush the coolant passages, replace the radiator and transmission and be on your way. Seems you let it go too long and the coolant/water in the transmission destroyed the clutches. So new trans and radiator required like tennisshoes mentioned. Not starting without a jumpstart usually means a weak battery, what is the voltage? Should be 12.3 or higher.

92,955

OK got it, the battery needs to be recharged then tested, if it fails replace it then the alternator output should be checked, no lower than 13.2 and no higher than 14.8 volts. As far as the tranny Tom's right about flushing it, you might be able too save it, cut the cooler lines and plug them off in the radiator then install a separate aftermarket trans cooler, then if you do have to rebuild or replace the tranny that will already be done and you won't have to replace the radiator.

Your Answer

Add photo

Related Questions

TrailBlazer EXT

Looking for a Used TrailBlazer EXT in your area?

CarGurus has 979 nationwide TrailBlazer EXT listings starting at $800.

ZIP:

Search Chevrolet TrailBlazer EXT Questions

Chevrolet TrailBlazer EXT Experts

#1 jimjimjim
jimjimjim
Reputation 430
#2 chevyp2p
chevyp2p
Reputation 100
#3 John Carson
John Carson
Reputation 90
View All

Related Models For Sale

Used Chevrolet TrailBlazer
105 Great Deals out of 4,581 listings starting at $1,150
Used Chevrolet Tahoe
547 Great Deals out of 29,234 listings starting at $1,699
Used GMC Envoy XL
17 Great Deals out of 683 listings starting at $400
Used Ford Explorer
945 Great Deals out of 72,518 listings starting at $1,000
Used Chevrolet Suburban
320 Great Deals out of 19,720 listings starting at $2,000
Used GMC Envoy
67 Great Deals out of 2,125 listings starting at $1,500
Used Jeep Grand Cherokee
1,022 Great Deals out of 74,888 listings starting at $750
Used GMC Yukon
376 Great Deals out of 18,226 listings starting at $2,950
Used Chevrolet Equinox
1,112 Great Deals out of 71,554 listings starting at $1,800
Used Chevrolet Blazer
4 Great Deals out of 1,167 listings starting at $1,255
Used Dodge Durango
273 Great Deals out of 22,704 listings starting at $1,200
Used Chevrolet Silverado 1500
1,717 Great Deals out of 175,751 listings starting at $1,250
Used Ford Expedition
472 Great Deals out of 24,887 listings starting at $700

Used Cars For Sale

2005 Chevrolet TrailBlazer EXT LT 4WD SUV For Sale
4 Great Deals out of 65 listings starting at $800

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.