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Subject: 700R4 tranny problem

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Bone Stock
Posts:8

10/14/2006 2:24 PM
I have a gm sierra 94 with over 230thousand miles on it it runs decent i guess but yah i pulled a code from the ecm and it said shift solenoid b was stuck or the torque converter was locked....either way my vehicle shifts like a slug...i cant put it to the floor or it will choke itself...the rpm guage is never at a steady rev in gear......any information would be helpfull in knowing how to go about this problem......thank you

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Rock Star
Posts:2375

10/14/2006 2:26 PM
What was the exact error code it gave you? (Not the description, but the code itself).

Rick Webster Editor, 4X4REVIEW.COM - A Tork Media, Inc. Publication - - - - - - - - - - - - - - - - - - - - - '74 FJ40 Land Cruiser "Measure once, cut twice"

Bone Stock
Posts:8

10/14/2006 7:30 PM
it flashed code 86 and 85 also with a lean mixture code but i cant remember the exact number i think it was 42 but yah it was 42,85,86.....i appreciate the help

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Rock Star
Posts:2375

10/14/2006 10:49 PM
Are you sure those are the codes? In most vehicles in '94 ('93-'95 actually), the highest most codes went up to was around 66. I'll need to know two more things: 1) What size engine do you have (e.g. 5.7 liter) 2) The 8th digit of your VIN # BTW - in '94, code 42 = Ignition Control circuit malfunction. This could certainly be part of your fluctuating RPM gauge. Rick

Rick Webster Editor, 4X4REVIEW.COM - A Tork Media, Inc. Publication - - - - - - - - - - - - - - - - - - - - - '74 FJ40 Land Cruiser "Measure once, cut twice"

Bone Stock
Posts:8

10/15/2006 1:41 PM
so yah after i checked my starter cuz it would engage itself whenever i hit a bump and then grind the fly wheel....but yah my starter was acting up so i changed it and after i changed it nothing changed but then the next morning i go to drive up the street and it shifts just perfectly so i think it was my electrical starter problems that confused the ecm....the terminal broke clean out the starter......but yah its a 5.7 and i'am pretty sure its a K series....but yah i changed the starter and 2 bad plug wires and it runs nicely.....

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