Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum banner
1 - 3 of 3 Posts

·
Registered
2002 chevy trailblazer_lt
Joined
·
3 Posts
Discussion Starter · #1 ·
Hi gang,
I am having an intermittent problem on my 02 4.2l engine trailblazer.
The transmission disengages sometimes when in 2wd the only remedy seems to be to switch to 4wd and then back to 2wd.

Any thoughts?

It was very frequent in the winter and it has not happened again in two months.

Thanks
 

·
Banned
2004 gmc
Joined
·
26,181 Posts
Welcome! You have a 4X4 model, since trailblazers didn't come with an AWD option. Not certain why our forum software allows impossible combinations.

Anyway, when it disengages, what does the 4WD control switch display for the mode?

Did you service the transfer case fluid as recommended every 50K miles?

How many miles now?

Can you exercise the system through all the modes a few dozen times to clear up the switch contacts?
 

·
Registered
2002 chevy trailblazer_lt
Joined
·
3 Posts
Discussion Starter · #3 ·
Thank you Roadie,
Yes, I have a 4X4 model
i was refering to A4wd mode
the car has 200k on it and the transfer case fluid has been changed on schedule since i have it.
when it loses connection is in the 2wd mode and all lights and signals appear normal as if the car was in neutral.
I did a few cyclings through all the positions in the transmission switch.
also drove it in cruise mode for a few days and after that has not reappeared.

Thanks again
 
1 - 3 of 3 Posts
Top