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1988 Gmc 1500 700r4 troubles

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Old March 6th, 2011, 1:11 PM
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Default 1988 Gmc 1500 700r4 troubles

Hello all this is my first post here but really need some help,When driving in 4th gear at 60-70 kms i floor it to get passing gear it feels like it goes into neutral when i let up on throttle it goes bang when it reconnects nasty really.
UPDATE the doesnt do this all the time seems like when im floor it.
Thanks all your help.

ADJUSTED TV CABLE WAS LOOSE

Last edited by kanatuna97; March 8th, 2011 at 8:51 AM. Reason: FIXED
Old March 9th, 2011, 10:32 PM
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I know you don't want this reply but you asked....... any time a transmission goes "bang" it's never a good thing. it sounds like you have a internal problem, might be a broken sprag or split drum...... I would drop th pan and see if you have anything in the pan....... Hope this helps

http://atransmission.info
http://700r4.info
Old March 10th, 2011, 8:14 AM
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Thanks the bang was caused by the high rpms,when it kicked back into gear,I adjusted the TV cable and wow what a diffference in shifting and it down shifts flawlesssly at this time.I guess time will tell

Last edited by kanatuna97; March 10th, 2011 at 8:24 AM.
Old March 18th, 2011, 1:27 AM
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great..i thought u mind need a gearbox change.
Old March 18th, 2011, 8:08 AM
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Yaaa i was hoping nothing went wrong sorrry to doubt your words here its toast,cratered,scrap.thanks for your help
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