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I apologize in advance if there are existing threads discussing this.. I didn't find any right away.
Down on the transfer case is the encoder motor for 4Lo gear engagement while trans is in N only. Both the transfer and axle have a sensor that tells the TCCM (computer) what position they are in. Hope that helps.
Thanks
Thanks,
Tim
BTW, where is the fuel pressure tester valve?
THANKS JIMBO1944
Only other possible is the heater door is not moving - do you have Climate Control (actual temps on controls) - that could be an electric blend door - first is the heater core and system flush - Dex cool every 3 years - 5/100 GM ad is BS and if the system gets ant air in it that Dex turns to sludge. Reservior should be to Hot full when cold.
the 4x4 stopped working instantly it is completely dead, no more lights for 4x4(2hi,4hi,4lo) everything is dead, I have checked the 20 amp fuse for the 4x4 and it is good. Any idea what the problem can be? or if you can guide me to previous post, I have checked all the post for an hour and I can't find anything similar.
Thank you
AJ
I checked under the passenger side kick panel but it is not there. Is there a fuse on the tccm?
Thanks AJ
I don't do any off roading with it but the roads here in NJ are pretty miserable in places. Thanks.
Luckly,I flushed out the "crud" from the heater core with only slight pressure from a water hose and the heater with climate control does a good job :-)
Now, from a TIP I was given long ago by a friend that owned a radiator shop. I have added a cup of laundry detergent and
refilled the system and drive it normally for a coupla weeks.I plan to drain and do a good "hose and thermostat removed" flush soon.
Here's the "THING" ...... I'm not familiar with DEXCOOL and
I'm reading some bad things about it. So .....
I plan to replace Dexcool with 50/50 Zerex and water.
Question :
Is there really anything wrong with this ??
Much obliged
Uppercreek
As for the detergent - not something I'd ever do - these aluminum radiators are PH sensative. As for the old green you can convert after a flush the articles all state. Both types need a min 3 year replacement cycle!
Heater is still OK. So I'll get the detergent all flushed out and refill with 50/50 zerex and H2O :-)
Hopefully the new zerex will neturalize any PH left from detergent !! We'll see !!
Uppercreek
did you ever figure out what the problem is?
Thanks!