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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I had my trans fluid changed and now it is blowing out the

Customer Question

i had my trans fluid changed and now it is blowing out the breather hose , fluid level is just above cold mark when warmed up , It's on a 2002 s10 4x4 4.3 litre
JA: When was the last time your transmission fluid was checked? Changed?
Customer: 3 mons. ago it was changed and it's been leaking ever since
JA: What is the model of your '02 Chevy?
Customer: S-10 QUAD CAB
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: just want to find out if it's an easy fix or cost me , i'm retired and limited on finances
JA: Anything else you think the mechanic should know?
Customer: It's been a good running truck other wise
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Chevy Mechanic about your situation and then connect you two.
Submitted: 11 months ago.
Category: Chevy
Expert:  Chad Farhat replied 11 months ago.

Hi, I'm Chad ,Welcome To JustAnswer, I'm reviewing your question and I will be be posting a replay ASAP

Expert:  Chad Farhat replied 11 months ago.

what is the mileage?

is the transmission acting up now ?

you are definitely low on fluid , we need to be at the warm mark on the trans fluid when warmed up ?

they usually use cheap gaskets , if they did a filter & gasket and they did not torque the transmission pan bolts & in the right sequence it will leak.

it should be an easy fix , 1 hour job , filter kit around $30 + fluid .

Please let me know

Thank You
Chad Farhat
ASE Certified Technician

Customer: replied 11 months ago.
it's not leaking from the pan it's blowing it out the breather tube the little sponge gets saterated and then it drips on to the exhaust pipe
Customer: replied 11 months ago.
milage is about 228000 kms
Expert:  Chad Farhat replied 11 months ago.

if you blowing out the tube and no leaks , it is building pressure internally ,

so when you checked and it was a the cold mark it lost the fluid from blowing it out the tube correct ?

Customer: replied 11 months ago.
correct, it's going out the breather tube
Expert:  Chad Farhat replied 11 months ago.

when that happens , it is building pressure internally , is this original transmission ?

Customer: replied 11 months ago.
not sure ,bought truck used about 3 years ago had no problems before this
Expert:  Chad Farhat replied 11 months ago.

if you know a good transmission shop with a capable scanner, they can actually run test for pump, line pressure and clutch volume index , and tell you if the internal is bad

like a GM TEch II scanner or equivalent .

Expert:  Chad Farhat replied 11 months ago.

Hey how are you

Did you get it fixed or you like more help on it please just let me know

Chad farhat

ASE Certified Technician

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