95 OBS PS automatic shifting weird - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 11-21-2012, 04:03 PM Thread Starter
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95 OBS PS automatic shifting weird

Ok so Im new to these trucks and mine seems that when you let off the gas and you are coasting down the road that after it gets to a certain MPH it starts to feel like its downshifting or the convertor is locking and unlocking. The Tach jumps around when it does this like from 700rpm up to 1000 after it shifts or whatever its doing. It almost feels like the truck is applying the brakes on its own.

Also if I smash the gas pedal and make the truck shift into passing gear when its shifts back out of passing gear its shifts really hard and bangs. it doesnt do that all the time tho.

Any HELP?????
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post #2 of 5 Old 01-01-2013, 06:57 PM
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Mine tries to shift down and will almost stop on its own if left untouched for a bit If I'm around 35 and I get back on it it'll "reengage" pretty harsh.

I would think its something to do with being able to pull some weight and it's a reaction to letting off the throttle. Just a guess.

1995 F350 XLT|DRW|7.3L Powerstroke|1.0 turbo|3" Diamond Eye Downpipe|Straight Piped|EBPV delete|DIY 6637|RiffRaff turbo inlet boot|203* thermostat|IDM mod|CCV|Built E4OD|Derale Trans Pan|Trans Temp Gauge|Explorer RAP RKE. Traded for a chevy

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post #3 of 5 Old 01-02-2013, 06:06 AM
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post #4 of 5 Old 01-02-2013, 02:06 PM Thread Starter
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truck 372k, tranny???
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post #5 of 5 Old 01-27-2013, 04:56 PM
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Mine down shifts on its own but doesnt shift hard as you mentioned i believe these tranny are supposed to down shift like that all of the auto psds ive driven have done it to some degree

Ben
1995 Ford F-350 Centurion package
6637
3" Diamond Eye down pipe
4" back to 7" stack
PHP tuned 6 position chip
140V IDM Mod
Custom paint obsidian black/medium copper
Custom tow mirrors

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