1999 GMC Sierra 1500 Questions

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Seems like its in limp mode and will limp mode cause no power to transmission solinods
Its stuck in 3rd gear.
Trans seems to be in limp mode and code for shift solenoid b electrical comes up but its got power.
battery light comes on and instrument panel goes dead. when you shut the key off and turn it back on the system all comes back online.
Sierra 1500
I replaced my transfercase but still says service 4X4, my push button indicator Lite's don't come on and it's like it's stuck in low gear. How do I fix this?
Blew hot air off and on before
Going around a curve to the right, the steering wheel will operate smoothly until it reaches a point of resistance until I break through it. It'll then operate smoothly until I reach that one small point of resistance again. No noise or vibrations.
We have replaced numerous things that were expensive and we were left stranded with no vehicle due to this ongoing issue. I read about everyone complaining on different forums about being stranded and unable to use the vehicle because we refuse to go to a GM dealership and pay over 500 to 1500 dollars to fix an issue GM should have recalled for all of us. I've been stranded with 3 kids on the side of Highway 70 in St. Louis MO in 4 degree whether. Mind you they are all10 and under, and our family is in Illinois. I have had issues with the passlock system approximately 100 times or more. Resetting it only works for so long. GM better step up and fix this!
New plugs wires air filter oil change oil filter. Cleaned throttle body and replaced gasket 3 weeks ago. Had a rough idle before tune up and still does. Fuel filter was changed about 6 months ago. Why will truck not stay running.
Replaced fuel pump and still won;t start.
it just started. i smell the coolant fluid inside the truck when i drive. is this a big problem?
Stalls out immediatley dies.Wont stay running!No trouble codes!
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