2002 Isuzu Trooper 3.5l 4L30E Transmission Fixed well almost 

Thanks I appreciate it. I'm just starting to work on my 2nd Zu. I'm not going crazy with her as she's going to be a daily driver or sold to someone who cares.

Jerry lemond is a great asset and guy. He's helped me a bunch and I'm thankful we have him. Remember to ask 4L30E Guru on Planetisuzoo. That guy's a genius. Hopefully I'll get some time to install the Dobson rear links I bought from Eric Gagnon at Classic City Overland. I'll do a video if I do.

@@robbo6460 will do and looking forward to the next one

Lol.

did you ever got it fixed? i have the same 02 isuzu axiom which my trans went out just yesterday.

@@jumpeven6100 I set the project aside for the winter. Here's what I have done so far. I removed and cleaned the transmission pan, replaced the a&b solinoids and the filter. I only have first and reverse gear but thats an improvement over having only reverse. I can put the vehicle in any gear and it will squeal the tires. Again that an improvement over doing nothing in any gear but reverse prior. I plan to check the switch on the drivers outside of the transmission by the shifter. Sorry, I just can't thing of the name of the switch off hand at the moment. I also have a TOD light on so I need to address that Issue also. My big improvement was that it wouldn't go into winter mode before but now it does. I was able to get it to run in winter gear when the fluid was cold but not hot. That tells me at least I know 3rd gear is possible. I bought the vehicle used with the transmission not working in hopes of salvaging the transmission back to working mode. My immediate diagnosis was that the fluid was low and it came out black. Ya, I know that means burnt but it gets worse. The pan and magnet was full of fine gray shaving dust and I know the transmission is dirty inside. I know its a long shot but I believe I will get it at least functioning again when I get it cleaned out. I'll change the fluid a couple of times or flush the trans fluid after I get more improved. I plan to put the Axiom on blocks and run the trans for a bit in 4x4 before I flush the fluid as well. Last but not least, I hear a clanking noise for a moment when I'm at 1500 rpm in first gear. Not sure what that is but it seems like it might be from the TOD system, I'll look into that as well. Good luck with your transmission and please share any successes you may have. P.S. I did adjust the transmission bands as well.

Thanks. I don't drive him much anymore. Time. Not enough of it.

Thank you.

Hopefully it works for you too. I suggest you leave a post on Planetisuzoo and 4L30E Guru will answer.

Unfortunately about 2 days. I should have put a tranny cooler on.

If your transmission doesn't have a dipstick then yes it's done as I did it in the video. It's easier if your scan tool has the transmission temperature but it can be done with an infared thermometer too.

Wow. I'm not a transmission guy but I would check a few things before condemning the transmission. I would drop the pan again and pull the filter again for anything else in there. I would also pull the shift solenoids and see if anything is in the passages. This feels like your best option to me. If the system ran dry because the pickup was blocked then your plates are most likely burnt. If that's the case your looking at a rebuild unfortunately. Join the Isuzu Mafia on Facebook and post your question again for them. There is also a guy who rebuilds them and swaps them out for you. It's cheaper then a transmission shop because you pull yours and install the rebuilt one. Hopefully my first suggestion shows a clogged valve or passage and it's a simple fix.

I have a 98 and 02 Trooper. The 98 has been fine. I bought the 02 with a bad transmission. Generally speaking Isuzu guys hate this transmission. They prefer a manual transmission. Me? I have no issues. Your mileage may vary tho

Robb O thank you sir!

Hey. I ended up selling the truck. The TOD has a broken sensor I couldn't locate.

@@robbo6460 oh too bad. I worked for isuzu for iver 20 years in new englad. Drove so many, including some prototypes, the rhd vx i had for a while. Had many vx demos. I have a 2000 rideo, 03 axiom and 05 08 ascenders. Any idea, was my tod issue same as your trooper. What sensor? Did your scan tool help.maybe mune is the small axle motor?

Unfortunately I don't know sorry.

Peter, after digging out my service manual the A solenoid is the one closer to the corner.... the B solenoid is just to the right of the A solenoid. I hope this makes sense. By corner I mean corner of the valve body. They look exactly alike and are held in by a pin that you simply pull down. Good luck.

At 4:20 of the video you will see the solenoids. The yellowish one in the left corner is A and the one to the right of it is B.

Ok awesome man..thank u...ok not to be a pain but is it far right corner or far left..thank u for your time and help😉..ok duh nm..thanks brother good luck on the trooper

@@robbo6460 ok im attaching a picture of the valve body idk if there's any difference between 99 and later years but this is what i found.i assume the shift solenoids are at the back

Honestly for me AC is easy. I replaced the compressor in my 98 Trooper. I'm AC capable as I have a recovery system to capture the freon and filter and reuse it. With that said if you had a slow leak and the system is empty then this is the perfect time to do your orings. I use the green Viton type as they are made specifically for the chemicals in freon. Most orings can be accessed by simply removing a 10mm or 12mm nut or bolt at each connection including the compressor. Then either fill it yourself or take it to a competent shop. Again I have all the equipment to inject the correct amount of PAG oil and I use a scale to weigh my freon. Hope this helps you.

@@robbo6460 Thank you again, I know you're a pro! Where I have the leak is the the rear part of the compressor. I'm kinda worried because it's a hard to reach place. Is there any way in which I don't have to take the compressor out? Thanks again

@@ricardoavelar6146 I wish I had the answer you want but unfortunately I don't. That is 1 of the hardest compressor replacement jobs I have ever done and I had the power steering pump off and half the front of the engine. It was in there in such a way that I modified half the crap before I put the new one in. I even had to cut down a 14mm wrench. It's possible to get to the orings but a real pain in the ass. You may still have to losen the compressor to get them out. I actually replaced both of the lines all the way to the connection by the firewall on the driver's side.

@@robbo6460 Thank you for your help and patience! I figured it would be a big problem to see it, but thanks for supporting me with your answers 👍🏻👍🏻

@@ricardoavelar6146 anytime

That's a tough one. It could be any number of issues and should be looked at locally by a qualified mechanic

where you able to find out the solution to your problem, mine is also doing this almost 4 to 5000 rpm and it won’t change gears unless the engine is not going uphill.

My wife thinks I'm an ass 🤣🤣🤣

Yes. It's a good chance your fluid is low. When it gets hot it expands. Follow the fill procedure in the video.

@@robbo6460 this morning I start my 4wd for 5 minutes to warm up and the car was ok to drive away. that's the trouble not having a dipstick 😎

It sure would be easier if they did have a dipstick. Lol. Actually some of the older gen 2 ones did have a dipstick.

@@robbo6460 yes be good if they have a dipstick. i have a holden jackaroo monterey 2000. I had it for 5 weeks the day I got it I was looking for the transmission dipstick silly me lol. I had to look on RU-vid

@@robbo6460 thank you it was low on transmission oil it go's good

Yes. My other Trooper Shrek weighs even more with all the added stuff

If there is no dip stick then it's the same procedure.

Hello. Sorry for the delay in response. I suggest you try this procedure.

Yes. My 98 is even harder to lift on this pit lift.

I understand. He's not cheap. Part of me doesn't want to sell him.