2003 Chevrolet Blazer Repair Question
Chevy s-10 4hi and 4lo lights both flash and go back to 2hi, checked tccm for corroded wires, checked for vacum leaks, unhooked the battery to reset the tccm, replaced switch on the dash, this year has no vacum switch on the fire wall, checked
check your fuses first, underhood as well as ip. then check the ground on the right side of dash for being loose.it may be your encoder motor on the t-case though.your vacuum actuator switch on tcase cold be not working or havea line disconnected as well.
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sorry i forgot to mention before i did check the fuses, i tried to get to the actuator on tran case but its such a tight space its hard to access. i will check the ground though that i havent done.i was kind of leading towards the encoder motor also. thanks for the tips.
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