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Ford 3.0L transmission problem #5078187 04/17/19 08:24 PM
Joined: Nov 2016
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taztheman Offline OP
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If anyone has any helpful advice it would be greatly appreciated. I have a 2000 Ford Ranger and whenever the engine/transmission gets hot (after a long drive) the transmission will shift harshly. It has very harsh shifts from 1-2. But whenever the transmission is cold it works perfectly fine. I don't have a check engine light on and the transmission fluid is clean and doesn't smell burnt. I am planning on changing the transmission fluid, filter, and valve body gasket.


Thanks

Re: Ford 3.0L transmission problem [Re: taztheman] #5078201 04/17/19 08:39 PM
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01rangerxl Offline
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Any idea of maintenance history? If not, then filter and fluid to start, maybe go ahead and do the valve body gasket.

I've "fixed" a couple with just fluid and filter. Never done the valve body fix personally, never needed to.

These transmissions need regular fluid replacement, and ideally need it done early on. They last a long time if they get a fluid change early. Filter doesn't matter as much unless fluid is neglected.


2002 Ford Ranger XLT | 3.0 V6 Auto 2WD | 231K miles
1994 Ford Ranger STX | 4.0 V6 Manual 4X4 | 201K miles
1994 Ford Explorer XLT | 4.0 V6 Auto 4X4 | 250K miles
Re: Ford 3.0L transmission problem [Re: taztheman] #5078224 04/17/19 08:58 PM
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Rolla07 Offline
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What mileage? I think your plan is a great starting point. Go from there


2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967
2015 Toyota Venza Parisian Blue Pearl 25k miles
TGMO 0W20 & OEM filter

Re: Ford 3.0L transmission problem [Re: taztheman] #5078226 04/17/19 09:00 PM
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FordBroncoVWJeta Offline
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I'd add a quart of Lucus Transmission fix. That stuff did wonders for a couple of the transmissions in my cars with hard shifts.


2017 Volkswagen Jetta 1.4T - 2015 Honda CRV 2.4 - 2012 Volkswagen Jetta 2.0 - 2007 Chevy Trailblazer 4.2 - 2003 Ford Taurus 3.0 Vulcan
Re: Ford 3.0L transmission problem [Re: taztheman] #5078230 04/17/19 09:02 PM
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JamesBond Offline
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I don’t know anything about transmissions but I had an automatic escort that would do the same thing. Regular fluid changes with Castrol Import Multi vehicle would lessen the hard shifting when hot. Castrol imv is merconV rated but is a little thicker than other merconV fluids.

Re: Ford 3.0L transmission problem [Re: FordBroncoVWJeta] #5078239 04/17/19 09:12 PM
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01rangerxl Offline
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Originally Posted by FordBroncoVWJeta
I'd add a quart of Lucus Transmission fix. That stuff did wonders for a couple of the transmissions in my cars with hard shifts.

Not yet, maybe as an absolute last resort.


2002 Ford Ranger XLT | 3.0 V6 Auto 2WD | 231K miles
1994 Ford Ranger STX | 4.0 V6 Manual 4X4 | 201K miles
1994 Ford Explorer XLT | 4.0 V6 Auto 4X4 | 250K miles
Re: Ford 3.0L transmission problem [Re: taztheman] #5078255 04/17/19 09:28 PM
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PPWarrior Offline
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Have you changed your coolant?

Last edited by PPWarrior; 04/17/19 09:28 PM.
Re: Ford 3.0L transmission problem [Re: taztheman] #5078272 04/17/19 09:40 PM
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clinebarger Offline
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I would scan it for codes regardless!!

The PCM controls line pressure based on "Calculated Load"......MAF & TPS are the main inputs for this calculation.

Line pressure testing with a pressure gauge is invaluable & sometimes absolutely necessary to diagnose a automatic transmissions. When/If you want/need to do this.....I have a lot of information.
4R44E & 5R55E units require TWO gauges & whips, One for Main Line Pressure & the other for Pressure Control Solenoid Pressure.


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/U341E
2000 Toyota Avalon 1MZ-FE/A541E
Re: Ford 3.0L transmission problem [Re: taztheman] #5078348 04/17/19 11:23 PM
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boulderdentist Offline
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I had an 1989 Ranger which I purchased from my Dad in 2002, was his new in 1989. I just did drop pan, change filter every 30,000 miles or so and the original transmission went to 269,000 before failing. I had it rebuilt and finally gave up on the vehicle at 336,000 miles, transmission still doing fine, too many other problems. Original engine when scrapped. Suspension worn out, front and back windows leaking during rains, rear main seal leak, etc. I would start with fluid and filter. Then if problems some transmission shops will do no cost diagnosis. How many miles on the transmission?

Scott

Re: Ford 3.0L transmission problem [Re: taztheman] #5078410 04/18/19 03:38 AM
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Char Baby Online Content
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Need more information.
Start with the basics.
How long have you owned this Ranger?
Is this harsh shift just starting?
Do you know the history?

Check level and if you have to add, just change ATF & filter. It may just need new fluid.


"Retired"
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'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
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