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Discussion Starter · #1 ·
My Rodeo is surging or hiccuping at take off and when coming to a stop. It doesn't do it when you put it on L and shift it through the gears yourself. Also one time today it was having issues finding gears and revving really high and I was only going 20 MPH tops. No CEL or Transmission light.

What do you folks think?
 

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check your fluid. hunting for gears is never good.

maybe time for a fluid and filter change just to keep the insides fresh.

a tranny cooler may be a good investment also :D
 

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Discussion Starter · #3 ·
95Rodeo4x4 said:
check your fluid. hunting for gears is never good.

maybe time for a fluid and filter change just to keep the insides fresh.

a tranny cooler may be a good investment also :D
It's not so much hunting for gears, it did that once. I have checked the fluid, there's plenty and it looks fine.

Also, last night on my way home, reverse wouldn't engage, but it worked fine after I got home.
 

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This is just a jab but it sounds like the computer is seeing something amiss and getting mixed readings and trying to adjust things. Check your connections for your sensors.

If your mass airflow sensor got dirty, it could cause a bad reading to the computer.

Check your antifreeze level too, mine was low (hoping my thermostat o-ring didn't start leaking again) and somehow it seemed to tie into the hunting idle issue I was having. When I topped the fluids off, it stopped hunting for idle. Again, just a guess but I'm going to continue to monitor mine.

Keep us posted on what it turns out to be,
Joe
 

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Is that Aisin transmission or not ? Do you have a dipstick ? How many miles on the vehicle ? Have you changed the fluid ever ?
 

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BrydonJ said:
2wd, the tranny has a dipstick, I'm at about 147,000 miles, and no I'd guess it's never been changed, because I never did it.
Then you have to change it. Use Mobil ATF 3309 or get a genuine Isuzu ATF from a dealer.
 

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BrydonJ said:
I've heard bad things about changing hi mileage fluid, or does that not apply here?
You already have problems. The ATF in your transmission is rather special (JWS 3309 fluid with special friction modifiers) and it simply may have lost its qualities. I do not think you have to be afraid to change the fluid, at this point.

The manual says 100K miles fluid change interval, but 50K is recommended.

This transmission relies on the special friction modifiers (additives) in ATF to eliminate the clutch slippage and to control shifting. If the modifiers are gone in old ATF, then you are in trouble.
 

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Clean the range mode unit on driver's side of tranmission. tony
 

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Andrea said:
:D :D If its the 3.2l, it reqires Dextron III, or the equalent. Andie:D :D
This is not true. There were some 3.2s in 2004 issued with Aisin transmission. Remember he said he has a dipstick.
 

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:D :D All 3.2l form mid 03 have the Aisin trans with the dipstick. And require Dex III, as per my owners manual and Jerry L. The 3.5l also has an Aisin Trans but its a different model and requires the fluid Hogler specified. Andie :D :D
Just noticed that yours is 2 wheel drive. I dont know if there is a difference but my above information is correct for the 4 wheel drive. Andie :D :D
 

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Andrea said:
:D :D All 3.2l form mid 03 have the Aisin trans with the dipstick. And require Dex III, as per my owners manual and Jerry L. The 3.5l also has an Aisin Trans but its a different model and requires the fluid Hogler specified. Andie :D :D
Just noticed that yours is 2 wheel drive. I dont know if there is a difference but my above information is correct for the 4 wheel drive. Andie :D :D
I doubt that Isuzu was using two different Aisin transmissions in 2003-2004. This is very unlikely.

Also, the DexIII in some manuals is a well-known error. My factory user manual for 3.5/Aisin/4WD vehicle is also stating Dex III, but this is an error. There was a service bulletin issued regarding that error in the manual.

This is your own thread:

http://forum.planetisuzoo.com/viewtopic ... +iii+aisin

If this is an Aisin transmission, then it requires JWS3309/Type IV fluid, and there is no way around it, no matter what Isuzu representatives are saying. They are usually very confused and unqualified in the latter-days models, I'd not trust them.

<edited>
 

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If Andrea was using Mobil 1 Synthetic ATF, then that probably was OK, because Mobil 1 Synthetic ATF is a sort of universal fluid, it covers lots of specs, including both Toyota Type IV and Dex III. But I'd stick to a specialized fluid like Mobil 3309.
 
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