K5dreamer
1/2 ton status
Hey all, Im not really a transmission guy, but i think ive got a problem and wanted to run it by yall and get some feedback.
The trans in question is a TH400, in a 1986 blazer, CUCV m1009.
The symptom is sometimes when i start it up after its been sitting, it wont go into gear. the shifter moves, and locks in place, but the truck stays in either park or neutral. I didnt try to push the truck with it in park, but i put it in drive and the truck would move if i got out and pushed, but it wasnt in gear. I moved from one gear to the next, from 1st to park, and nothin.
Funny thing, is that it seems if i rev the engine lightly, say to approx 1000 rpms (i dont have a tach) nothing happens, but if i spin it up to 2000 or so, the tranny will drop into gear, and i can then drive it around just fine. park it, leave it, come back, and start it up and drive off. its just when its been sitting for a few days it seems to do this thing where it dosnt want to go into gear.
Because it drives normally in all other conditions, i dont think the clutches are bad, or anything like that, but i dont know what it could be.
Only thing i can think of, is the fluid pump inside the bellhousing? or something wrong with the valve body? i checked the fluid level, and it seems spot on.
any help would be greatly appriciated.
The trans in question is a TH400, in a 1986 blazer, CUCV m1009.
The symptom is sometimes when i start it up after its been sitting, it wont go into gear. the shifter moves, and locks in place, but the truck stays in either park or neutral. I didnt try to push the truck with it in park, but i put it in drive and the truck would move if i got out and pushed, but it wasnt in gear. I moved from one gear to the next, from 1st to park, and nothin.
Funny thing, is that it seems if i rev the engine lightly, say to approx 1000 rpms (i dont have a tach) nothing happens, but if i spin it up to 2000 or so, the tranny will drop into gear, and i can then drive it around just fine. park it, leave it, come back, and start it up and drive off. its just when its been sitting for a few days it seems to do this thing where it dosnt want to go into gear.
Because it drives normally in all other conditions, i dont think the clutches are bad, or anything like that, but i dont know what it could be.
Only thing i can think of, is the fluid pump inside the bellhousing? or something wrong with the valve body? i checked the fluid level, and it seems spot on.
any help would be greatly appriciated.
