4l30e transmission problems. I replaced Because of the 4L30-E's longevity and its use by a variety of vehicle manufacturers, numerous changes have taken place in this transmission throughout those years. Can anyone help? Thanks In the world of transmission diagnostics, from time to time there is a scenario in which the diagnostics performed ends up being a waste of time. The problem I am having is that the seller is sticking to the story that this transmission was made for an Isuzu trooper - even after talking directly to the transmission guy that has looked at both of them. All 4L30E questions answered by experts Discover tips and techniques for adjusting clutch clearance in a 4L30 E transmission, including using thinner clutches and replacement parts. Dec 4, 2004 · I have heard the transmission control module and/or solenoids can cause shift issues and the transmission is not failing. 5 DOHC 4x4 Automatic 4L30E transmission Struggles to shift out of 1st or 2nd gear RPMs rev over 3,500 and triggers the "Check Trans" light to flash and the car switches to "BACK UP" Mode and then starts to shift a little better and manual shifting is enabled and seems to 4L30E transmission problems? We have replacement new, used, & rebuilt GM 4L30 transmissions for sale with fast shipping and a 5-year warranty. I rebuilt because there were problems with the 2nd to 3rd shift being soft and then finally presenting a false neutral from worn out plates. No leaks. The Isuzu Rodeo was equipped with the 4L30E transmission. I passed 1k miles Bimmerforums is the preferred online BMW Forum and community for BMW owners. If you want an auto, I’d get a different engine and take the matching transmission from that. Dropped it, took it apart, sure enough the plates were toast. I experienced some problems with the transmission not shifting Well here's another problematic 4L30E thread. But they aren’t without their problems though, so let’s look at some of the most common Isuzu Rodeo transmission problems, look at cost estimates and figure out what you can do about them. Having shift problems after a rebuild. I passed 1k miles After putting a a couple thousand miles on it, the tranny started to give him problems. No reverse, little or no reverse, neutraling in reverse and partial TCC-lockup apply in reverse are only a few of the many problems. I also re-did drum seals, housing seals, valve body seals, the works. . Technical issues and repair guidelines The torque converter, valve body and solenoids in the 4L30E transmission have a relatively limited resource. In some situations it can be partially attributed to the “out of sight, out of mind” syndrome, as is the case with a 4L30-E transmission in Isuzu Trooper and Rodeo vehicles. Automatic Transmission Service Group: 03 R 96 ISUZU 4L30 E WRONG GEAR STARTS & ERRATIC SHIFTS Automatic Transmission Service Group 7. I researched this issue on the boards already, but there are conflicting replies. If I understand it Low band adjustment on Fiona to attempt to fix a slipping issue. The vehicle had no 1st or 2nd gears and with the expert advice of 4L30E Guru on Planetisuzoo I had my transmission rebuilt. They forgot to put something on. Table Of Contents 4L30E 3rd Clutch Checkball Missing D 3 2 Check-ball 3rd Clutch Quick Dump Checkball Missing Reverse Clutch Checkball Missing Pressure Taps 2nd Clutch Pressure 4th Clutch Pressure Servo Apply Pressure Pressure Tap Circuits Input Sprag Rotation 3rd Clutch Drum Disassembly . This transmission is a completely electronic controlled, 4 speed, 1998 isuzu trooper S 3. Coincidentally after having my transmission fluid exchanged at a local establishment, my transmission started shifting very harshly on the 2>3 shift, both up and down. He had it replaced with a used transmission that worked fine and then started giving him the same problem right after the 1K mile/90 day warranty ran out. Any ideas what may have caused the transmission to not want to go beyond first gear?? My next question is if it is better to rebuild, or better to buy a used transmission. 2 with a 4L30E transmission. This booklet contains the general description and the procedures necessary to repair, overhaul, or service the Hydra-matic 4L30-E transmission that is currently found in the Opel Omega, Opel Senator, BMW, and the Isuzu Trooper/Rodeo. I have a '99 Amigo with a 4l30e transmission and was wondering if any transmission gurus can help me diagnose an issue I'm having. I would highly recommend avoiding these useless transmission for more reasons than one. Fluid capacity and type, valve body and solenoids charts. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm Hello to all, I am new to the forum. Sometimes if I'm accelerating at a Looking for 4L30E electrical problems: The shift indicator in the cluster was not functioning correctly and transmission was shifting hard. 2 eng, 4l30E automatic transmission. How do I disconnect the TCM to allow manual shifting to be able to determine if this is a mechanical or electronic problem. A career as a seagoing of icer followed. and I can force it to pop out if gear if I drive it hardand play with the accelleration. Jul 21, 2022 · A remanufactured transmission normally last 10,000 to 80,000 miles and cost more than the vehicle is worth. Hello, all! I've developed some nerve issues in my left arm and it's making driving my Z3 difficult. I have a '99 Isuzu Trooper auto. 4L30e transmission issues Jump to Latest 239 views 4 replies 4 participants last post by lukemurphy1114 Aug 25, 2025 J In the world of transmission diagnostics, from time to time there is a scenario in which the diagnostics performed ends up being a waste of time. I have a 2001 Isuzu Rodeo 3. The third time was because if was revving high rpms before shifting and the rpms were erractic. n New Zealand. It only seems to do this after the car has sat for a day or so and is used in the morning. I replaced all the other clutch pack plates too while I was in there. It slams into gear so hard that the drivetrain resonates like a ringing bell. The customer was referred to the transmission shop by a technician at a general service facility because of a “check transmission” light and the torque-converter-slip code that he found during his inspection. Later he came involved in skydiving, did almost 2000 jumps and was rated as a pa Download the Hydra-Matic 4L30-E repair manual PDF free online for detailed service, diagnosis, and transmission troubleshooting guidance. Coincidentally after having my transmission fluid exchanged at a local establishment, my transmission Get 4L30E transmission rebuilding tips, 4L30E troubleshooting help, 4L30E technical service bulletins, 4L30E diagnostics and 4L30E technical information from TRNW. Discover premium quality transmission parts with unmatched reliability, durability & value. Knowing what parts of the transmission can affect which characteristics of servo release pres-sure, you can eliminate many of them with this one easy test. My wife's trooper 4L30E was rebuilt at the end of 09 by a local transmission shop (Reliable transmission Hillsboro OR) and its been a nightmare. When I accelerate at a normal pace onto the highway, the transmission will shift smoothly from 1st to 2nd, 2nd to 3rd, but when it shifts into 4th gear the So if you drive the vehicle with the fluid temperature at 240 degrees, your transmission will develop significant problems and fail 4 times sooner that it would have otherwise. 5 (and larger) 6 cylinder engines. Posting here to see if there's anything I should be prepared for, tell the trans shop, and/or if anyone has had this We hope you find the Lookup Isuzu Transmission by Model, Year guide helpful. The Isuzu Trooper was equipped with the 4L30E transmission. In Figure 1, a partial EC3 hydraulic schematic for a 4L30 Probably 2/3rds of the broken ones are broken cuz the tranny (4l30e) “won’t shift out of first” or “starts but won’t shift”. Time went on with the trooper as my daily and everything continued well. TRNW: The original Transmission Rebuilders Network core group members. Also heard a bad center bearing or driveshaft problem can cause a shudder when shifting. First time I took it back because it was leaking. I've been reading around and collecting some info about problems that are similar, and it's given me a general idea of whats wrong. Turning right while changing gears is especially hard. Check these troubleshooting and repair guides for more help on your Isuzu. Transmission rebuilding tips, technical service bulletins, sprag rotations, checkball locations, pressure testing. After putting a a couple thousand miles on it, the tranny started to give him problems. I've read that there's a torque converter drain-down problem with this transmission but if that was the cause it sounds like it has caused some damage elsewhere. Here is the history: The trans was r & r 4 times, rebuilt with just about everything replaced, including 3 new The 4L30-E was an automatic transmission developed and produced by General Motors. Hey all, My trusted mechanic told me the trans fluid leak is not coming from the pan, but from either the pump seal behind the torque converter or the torque converter seal. Now it's seems like it's slipping and in 1st I just rebuilt the 4L30E in my 97 318i. At Bimmerforums, you will find technical how-to information maintenance specifics audio advice wheel and tire combinations and model specific details not found anywhere else. I rebuild the 4l30e in my Isuzu Trooper recently. All 4L30E questions answered by experts I rebuild the 4l30e in my Isuzu Trooper recently. Hello folks, New to the board and am looking for some tech help. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm So I started researching a bit on the net, in Isuzu, BMW and Cadillac forums (the 4L30E is used in a few different vehicles) and started to find some common problems. Trusted by transmission remanufacturers & valve body rebuilders since 1978. Need a replacement transmission? Get an estimate for replacement transmissions and local 4L30e transmission rebuild Plus Pics and Guide Jump to Latest 85K views 30 replies 23 participants last post by msessions588 Aug 12, 2023 R Discover the common problems associated with the BMW 4L30E transmission, backed by statistics, expert insights, and consumer feedback. Transmission rebuilders and service experts fixing transmissions online. It was developed for light-duty use in longitudinal engine rear-wheel drive vehicles, replacing the similar TH180/3L30. 4L30-E: Slips in 2nd or Slips in 3rd A 1995 BMW 325i equipped with a 4L30-E transmission came into a transmission shop. Hard shift from 3rd to 4th and shuddering in 1st on takeoff. The transmission shifted great and everything seemed ok. 4L30E Transmission repair manuals, diagrams, guides, tips and free download PDF instructions. About the author. Second time was because it was leaking. Regular maintenance and early detection of these issues can help mitigate potential problems. Aug 1, 2002 · The most-common complaints concerning the 4L30 E usually have something to do with reverse. I did some research on the the Trooper/4L30e tranny and after reading this thread, The 4L30e transmission is a 3 speed with a retrofitted overdrive section that provides a 4th gear ratio ("Overdrive"). These problems tend to be more pronounced with higher temperatures, so always check the pressures with the transmission hot. In Reverse, 1st, 2nd and 3rd the overdrive section, which is located between the Torque Converter and the transmission, operates in a 1:1 ratio. 4L30e Transmission Shifting Problem - with Solution Jump to Latest 234K views 94 replies 53 participants last post by rbral Jun 9, 2017 S Get 4L30E transmission rebuilding tips, 4L30E troubleshooting help, 4L30E technical service bulletins, 4L30E diagnostics and 4L30E technical information from TRNW. For a while now my rodeo (My specs SHOULD be in my sig) has been shifting oddly. 39K subscribers Subscribed 3. In Figure 1, a partial EC3 hydraulic schematic for a 4L30 4L30e transmission woes - Manual 1st and 2nd, no 3rd or 4th Jump to Latest 13K views 43 replies 5 participants last post by Miajr84 Jul 29, 2011 9 Problem #1) Any ideas as to why my 4L30E tranny pops out of the drive gear occasionally? It seems to only do this after it reaches normal operating temperature. I will probably be forced into changing from a 5 speed to an automatic. I did some research on the the Trooper/4L30e tranny and after reading this thread, 2002 Isuzu rodeo 4L30e. It is quite a surprise for a technician to learn that a malfunctioning TCC solenoid could cause a slipping in reverse or loss of reverse with 4L30-E transmissions. 3rd Clutch Pressure Plate Installation Binds in 2nd A 1995 BMW 325i equipped with a 4L30-E transmission came into a transmission shop. Jul 25, 2025 · Discover common GM 4L30E transmission problems, repair costs, user reviews, and expert insights to help you make informed decisions. Even after a hydraulic change to the 2000 and later Troopers and BMWs with the four-valve-pump EC3 converter-clutch-apply arrangement does this potential problem still exist. Oct 4, 2025 · Discover the common problems associated with the BMW 4L30E transmission, backed by statistics, expert insights, and consumer feedback. Skimming through Autotrader, there are a number of Z3s with automatic transmissions, but most of them have the 2. I know it's been mentioned in a thread or two but I can't find it in the search bar. Aug 22, 2023 · While the 4L30E transmission is generally reliable, some common issues include solenoid failures, valve body problems, and torque converter issues. Bimmerforums is the preferred online BMW Forum and community for BMW owners. The problem occurs mostly after the transmission has been re-installed. That’s where the Isuzu Trooper, and more specific the 4L30-E transmission, the main subject of this manu e Netherlands. How hard is it to replace the #1 shift solenoid in a 4l30e transmission? It's in a 2001 trooper. I was rebuilt once I have seen your responses to several transmission problems and you seem to be one of the most knowledgeable, more so than even my local Isuzu repair shop! About once or twice a month my transmission light would blink at startup for the past 6 months. When it would do so my transmission would bump from 2nd to 3rd and from 2nd to 1st. The 4L30-E was an automatic transmission developed and produced by General Motors. But they aren’t without their problems though, so let’s look at some of the most common Isuzu Trooper transmission problems, look at cost estimates and figure out what you can do about them. I have a 2000 Isuzu Rodeo it is leaking tranny fuild out of the pasenger side of the transmission right above the front Customer: i have a 98 isuzu rodeo, 3. cvrv, jzjxe, rqiu, k6yyq, r9f6, 8oq2to, kfvx, ngknv, 5emr, ujqc,