The Isuzu Trooper was equipped with the 4L30E transmission. 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.
What Transmission Do I Have?
Isuzu Trooper Transmission Models
1998-2002 Isuzu Trooper: 4L30E Transmission
Isuzu Trooper Transmission Replacement Cost Estimate
Pricing varies by model. To be 100% sure on pricing, have your VIN# handy and use our Get An Estimate feature to look up your transmission by VIN#.
What are the DTC codes related to Isuzu Trooper transmission problems?
P0766 – Failed Shift Solenoid D – This DTC can be stored when there is a problem with a shift solenoid or the valve body.
P2703 – Failed Friction Element D – This trouble code can be triggered by a failed friction element like a clutch disc.
P0720 – Failed Input Speed Sensor or Output Speed Sensor – This trouble code is caused by a bad speed sensor on the transmission.
P0730 – Incorrect Gear Ratio – This issue could be caused by a number of problems, including a fault in the transmission control module, dirty transmission fluid, or a bad transmission solenoid.
P0657 – Voltage Problem in the ‘A’ Circuit – This transmission problem is often caused by a short, or bad ground on the PCM or PCM wiring harness.
P0700 – Malfunction in the transmission control system – This DTC is often triggered when there is a problem with the TCM, a wiring harness, a solenoid, or the valve body.
P0715 – Input/Turbine Speed Sensor Malfunction – This code typically gets stored when the input sensor cannot read the engine RPM, which can prevent the transmission from appropriately shifting gears.
P0717 – Input/Turbine Speed Sensor No Signal – This trouble code is generated when the PCM does not get a signal from the input speed sensor, which will prevent the computer from being able to determine when the transmission needs to shift.
P0791 – Intermediate Shaft Speed Sensor ‘A’ Circuit – This error can occur when there is a problem with the intermediate shaft speed sensor, most likely due to a bad sensor, wiring problem, or a failed shift solenoid.
P0793 – Intermediate Shaft Speed Sensor Circuit No Signal – The computer will generate this DTC when it cannot communicate with the intermediate shaft speed sensor.
Isuzu Trooper Transmission Recalls
None Found
Isuzu Trooper Technical Service Bulletins (TSB)
None Found
Common Problems with the Isuzu Trooper Transmission
Lack of Response
Leaking Fluid
Low Fluid
Burning Smell
Grinding or Shaking
Whining, Clunking or Humming
Refuses to Go Into Gear
Torque Converter Issues
Valve Body Issues
Transmission Noisy in Neutral
Gears Slipping
No 3rd or 4th Gear
No 1st or 2nd Gear
No Reverse
Dragging Clutch
Trouble Codes / Check Engine Light
Can I drive with a transmission problem?
If your Isuzu Trooper can still make it up and down the road, you might say “It’s fine, I’ll just drive it until I can get it fixed”. But that is not always a good idea, depending on the symptoms. You see, there are a lot of (very expensive) moving parts inside of a transmission, and if something isn’t right, continuing to drive with a transmission problem could damage something else.
How often does a Isuzu Trooper transmission need to be replaced?
The overall lifespan of a Isuzu Trooper transmission largely depends on how well it was maintained. Factory design flaws also factor into this equation, along with how/how hard you drive. But on average, we’ve seen the Isuzu Trooper transmission last for between 130,000-180,000 miles. A high quality replacement transmission however, can last considerably longer if all of the factory design flaws have been addressed and the vehicle has been maintained.
How are Isuzu Trooper transmission issues diagnosed?
It is fairly easy to guesstimate what the root cause of your Isuzu Trooper transmission problems might be, but you won’t truly know unless you have the right tools and experience. A good mechanic or transmission repair center will be able to connect your truck to a computer and find out which diagnostic trouble codes (DTC’s) have been stored. Once they know what to look for, they can perform a visual inspection to verify the problem.
How is a Isuzu Trooper transmission replaced?
In order to replace your Isuzu Trooper transmission, the truck has to be lifted from the ground in order to gain access to all of the parts that will need to be unbolted. Then the transmission can be lowered to the ground (typically with a transmission jack), so the new transmission can be installed.
Recommendations for Isuzu Trooper transmission issues?
To save time and get back on the road faster, have your 17-digit VIN# handy and you can get an online quote for a reman Isuzu Trooper transmission here, then find a local shop using our Find a Shop guide to install it for you.
How to Solve Isuzu Trooper Transmission Problems
Solution A: Buy a Used Isuzu Trooper Transmission
The quickest way to fix your transmission problems is to simply buy a used transmission or used transmission. These can be found at most junk yards, and they often come with a 30-90 day warranty. However, there’s no way to determine the actual condition of the internal components, so you could be spending a bunch of money to have the exact same problems. Plus, that warranty only covers the transmission if it’s defective, not the labor costs that you’ll have to pay.
Solution B: Buy a Rebuilt Isuzu Trooper Transmission
Another option would be a rebuilt transmission or rebuilt transmission. A local repair shop will remove your transmission, then install a bunch of new parts during the rebuild. The problem here is, the skills and experience of each transmission rebuilder will vary widely from shop to shop, so you could have problems from something that wasn’t adjusted properly. And the 1-2 year warranty might only cover you at certain transmission repair shops, in a specific geographical area.
Solution C: Buy a Remanufactured Isuzu Trooper Transmission
Many owners depend on their vehicle to commute and get things done. Their gasoline engines are designed to go 100’s of thousands of miles, so it makes sense to invest in a remanufactured transmission.
What Transmission Do I Have?
What Problem Does Your Isuzu Trooper Have?
Let us know the year, mileage and problem you’re having as well as any trouble (OBD) codes you’ve found. If you’ve been given a quote or paid for a repair, we’d like to hear about that too!
Dash board crazy not lightning correctly when changing , go to low gear on drive and stays on. Some one told could be selenoids not getting current, sensor or harness.going crazy
My 2002 Isuzu Trooper ( automatic transmission) will not go into 3rd gear. But first and second is smooth. Also a grinding noise when I start it ever 3rd or 4th time.
Lost 3and4gear in my 93 Isuzu trooper automatic transmission
After being rebuild it loose power when hot
1996 honda passport 4wd four speed automatic wont shift into 3rd or 4tg
My 1999 Isuzu trooper started not wanting to shift into drive a couple wks ago. Progressively taking longer and longer to. Yesterday I drove for a little while parked it and then when I started it and put it into drive it would not move in any gear. When I put it back in park it made a loud clicking noise before going into park.
which auto trans is fitted to 2003 3ltr trooper duty
I have a isuzu trooper 1994 and I getting a code 26 from my transmission. What is code 26 ?
2002 model. 206000 miles. Engine revs between shifts. No codes OBD. No MIL lights.
Will not move unless you push winter mode button ,once it gets going it doesn’t slip until it comes to a stop then slips trying to take off again.What is going on with it,it has 230k on it
Not wanting to move forward unless in Winter mode power mode will not stay indicated on dash replace transmission filter gasket and new transmission fluid still having an issue did you ever find out what was wrong with yours
01 trooper slips after warm up 20 minutes or so , changed fluid shifts smooth
2000 Isuzu trooper 3.5 slips in drive but 1st 2nd and 3rd and reverse is fine
I have a 95 isuzu trooper 4wd automatic. I recently had my transmission replaced. It only has 109,000 miles on the transmission. About 2 weeks after the install…my trooper would not move. I put it in reverse…it moved just a little. Then stopped. I put it in drive…it did nothing. It wasn’t acknowledging that it was in gear. After moving the gear shifter between each gear..trying to feel if any was engaging..I put shifter in neutral so I could listen for any unusual sounds. As I started to rev the engine. My trooper started to drive. My trooper was driving in neutral! It would drive in neutral and in park. But did not acknowledge any other gear. Now…it’s not engaging in any position. Not park or neutral. Can someone please give me some idea of what this is. I’ve noticed a plug. A 4 prong plug, located by the transmission. It is not plugged up at all. Can’t see anywhere that it should be plugged up at. Any ideas?
I have a 2000 Trooper 180,000 miles bought last Aug. Often the check transmission light pops on even when just in park. If it happens while driving car typically throws code when going to 3rd than car goes to limp mode. All fluids are good car runs really well besides occasional codes.
hello when I put break in stop[ make un noise same un shake but everything before estop is ok . the question is something with the transmission
falls out of 4th gear after driving and engine is at running temp
Mine 2000 does something similar when slowing shifting down from 4th to 3rd slips and sometimes throws check transmissions light than loses power.
My 1992 isuzu trooper check trans light cum on and loses power
I have the exact same year model with the same problem.. Did you figure yours out??
Ok I have a 01 trooper I love my car. It was about 2 months ago it started making this sound and shaking it’s way worse now but I iv taken it to shop after shop they tell me there’s no codes on tranz it’s all ways low on fluid but there’s no leaks so where is it going how to fix trans if no one know what’s wrong. Now it’s not pulling that great
1992 Isuzu Bighorn – Problem is gear starting at 3rd gear, I think it is in Limp Mode, can someone know what causing the problem and how to fix it. Already change ATF including filter but nothing happens still starting at 3rd gear.
Also dealing with this on 2000 trooper often throws check transmission code than goes to limp mode.
This is my problem also
Mine doing same any ideas
2001 Isuzu Trooper 84,000 miles – Transmission only engages and moves vehicle immediately after startup when cold. Otherwise it will not engage. No trouble codes. Fluid level and condition appears okay.