Yes I have a 2000 Isuzu trooper and I have
changed the transmission filter and fluid
and it still has a problem when I put it down
in to drive it is like the brake is on but I can
pull it down in to low and it will shift fine but
when I stop and leave it in drive it does it
again so I don't know if the transmission is
bad or is it something else thank you
Best to have your mechanic take it for a test drive to diagnose the issue. You tried the cheap fix of replace the fluid already.
It's your 1st to second shift solenoid. When the solenoid isn't working the transmission starts off in second gear instead of first when starting from a dead stop. If you want to look for the part look up the 1st to second solenoid for a GM 4L30E transmission.
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