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Discussion Starter · #1 ·
Anyone have issues on the 9AT transmission?

When cold, might have some noise when shifting in low gears occationally.

Also, in 8-7 shifting.. When deep press gas pedal.. Also hearing noise coming from transmission..
 

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No noise here. But the trans is a little slow... especially when upshifting.... holds the lower gears too long after releasing throttle a bit (forcing upshift)...
 

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Mine has been very smooth and quiet, at 903 miles so far. Today when I pulled out of our driveway, kinda felt/heard a very low, thump, clunk as we drove off. Didnt here it again anymore. So many folks on Youtube Passport/Pilot/Ridgeline video reviews, comment on how bad this Z9 tranny is or is going to be.

I know, that most are just "opinions" (trolling). Others say they speak from their Honda experience. But I do hope they are wrong.
 

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Ummm....... the ZF is only used on Pilot (top trim) and Passport. Odyssey has Honda 6 speed or Honda made 10 speed. Ridgeline only uses Honda 6 Speed auto... Don't understand why they would complain about a trans they don't have in their vehicle?
 

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Ummm....... the ZF is only used on Pilot (top trim) and Passport. Odyssey has Honda 6 speed or Honda made 10 speed. Ridgeline only uses Honda 6 Speed auto... Don't understand why they would complain about a trans they don't have in their vehicle?
DOH!! I shoulda done my research better before posting my reply. I meant to infer that I'd read comments on Youtube video reviews where some said the ZF trans had issues in some Hondas'. Again, random replies in Honda video reviews. I generalized my first reply.

But I imagine some complain of vehicles they don't own as well. It happens. peace. e.
 

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DOH!! I shoulda done my research better before posting my reply. I meant to infer that I'd read comments on Youtube video reviews where some said the ZF trans had issues in some Hondas'. Again, random replies in Honda video reviews. I generalized my first reply.

But I imagine some complain of vehicles they don't own as well. It happens. peace. e.
A lot of those comments/ reviews were for the 2016/17/18 models. Supposedly ZF and Honda re-tuned/reprogrammed and made internal improvements to the ZF 9 Speed for the 2019 model year. This ZF trans is used on a lot of high end product, including some BMW's, Range Rover, Jaguar and I believe Chrysler uses it still on some product. It's a very compact design and is in fact smaller overall than Honda's in-house 10 speed Auto in the Accords and Odyssey's. It is a decent trans, but like I said, sometimes it's a little slow when you aggressively accelerate and then lift off the throttle to make vehicle up-shift. All and all, it's a minimal issue for me. All I want is for it to be bullet proof for the life of the vehicle.
Honda can push the Passport as a light to moderate off-road capable vehicle because of that 1st gear. 4.713 is quite low and makes a great crawl gear. In Sport mode, the Passport will start in 1st gear and ROCKET off the line because of that gear.

Some of the specs are below from Wiki... from what I know this is pretty accurate. Ours is the 9HP48 model. This trans excels in fuel economy because 5th gear is 1.00:1. 6, 7th, 8th and 9th gear are all overdrive. 9th is so high (very stout overdrive ration) Passport will not shift into it until about 77-80 mph.


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4.7132.8421.9091.3821.0000.8080.6990.580.483.80
List of ZF 9HP variants
NameWeightMax. gasoline torque (N·m)Max. diesel torque (N·m)Application examples
9HP2878 kg280280
9HP4886 kg480450Acura TLX, Chrysler 200, Chrysler Pacifica (2017– gas versions only), Fiat Doblò, Fiat 500X, Honda CR-V (2015-), Honda Pilot, Jeep Cherokee (KL), Jeep Renegade, Ram ProMaster City, Range Rover Evoque, Land Rover Discovery Sport
 
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A lot of those comments/ reviews were for the 2016/17/18 models. Supposedly ZF and Honda re-tuned/reprogrammed and made internal improvements to the ZF 9 Speed for the 2019 model year. This ZF trans is used on a lot of high end product, including some BMW's, Range Rover, Jaguar and I believe Chrysler uses it still on some product. It's a very compact design and is in fact smaller overall than Honda's in-house 10 speed Auto in the Accords and Odyssey's. It is a decent trans, but like I said, sometimes it's a little slow when you aggressively accelerate and then lift off the throttle to make vehicle up-shift. All and all, it's a minimal issue for me. All I want is for it to be bullet proof for the life of the vehicle.
Honda can push the Passport as a light to moderate off-road capable vehicle because of that 1st gear. 4.713 is quite low and makes a great crawl gear. In Sport mode, the Passport will start in 1st gear and ROCKET off the line because of that gear.

Some of the specs are below from Wiki... from what I know this is pretty accurate. Ours is the 9HP48 model. This trans excels in fuel economy because 5th gear is 1.00:1. 6, 7th, 8th and 9th gear are all overdrive. 9th is so high (very stout overdrive ration) Passport will not shift into it until about 77-80 mph.


123456789R
4.7132.8421.9091.3821.0000.8080.6990.580.483.80
List of ZF 9HP variants
NameWeightMax. gasoline torque (N·m)Max. diesel torque (N·m)Application examples
9HP2878 kg280280
9HP4886 kg480450Acura TLX, Chrysler 200, Chrysler Pacifica (2017– gas versions only), Fiat Doblò, Fiat 500X, Honda CR-V (2015-), Honda Pilot, Jeep Cherokee (KL), Jeep Renegade, Ram ProMaster City, Range Rover Evoque, Land Rover Discovery Sport
Now that's a very detailed and informed reply. Thanks so much, good to know. Most I'll ever do off-road wise is drive on some sandy, Gulf Coast beaches here in S.E. Texas. And that's good enough for me. Still diggin the Passport @ 908 miles. peace, e.
 

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randals said:
Anyone have issues on the 9AT transmission?
When cold, might have some noise when shifting in low gears occationally.
Since we've driven for couple decades dozens of Honda models and serviced all of these ourselves, a familiar pattern has emerged in that Hondas are very sensitive to clean fluids (transmission,differential,VTM, etc).

As a routine on all our Hondas, we do a partial fluid replacement at every other (every 2nd) engine oil/filter change. So, for example, on our Pilots,Passports,Ridgelines,CRV's when replacing at around every 15k interval, we also replace CVT Fluid (partial), VTM Fluid (complete), ATF DW-1 (partial), ATF-Type 3.1 (partial), Brake Fluid (partial), Power Steering (partial).

The partial fluid changes are inexpensive and easy DIY.
 

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You do know the trans fluid for the Passport and Pilot with the 9 speed is like $40/$50 quart don't you? It's not the normal $6 quart stuff you use in the Honda 6 Speeds. Just saying and I don't think it's that easy to do a fluid swap at home as there is not dip stick and you have to have a scan tool to get the temp correct to check "full" thru the fill plug.
 

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There is an overflow plug.
Loosen first.
Drain fluid.
Measure.
Pour in same amount as drained out. (the first 2 steps are not necessary for partial fluid replacement but good practice)
 
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