The Throttle Position Sensor can get out of adjustment due to wear in the throttle body or due to carbon build up. This will cause the idle timing to advance more than 30 degrees which will cause very high HC and NOx emissions. Conversely, the Throttle Position Sensors can wear out and not properly advance the timing which causes a lack of power and poor fuel economy.
Resources for the Repair and Maintenance of your Toyota T100
Toyota T100 Models:
Toyota T100 Problems
At higher mileages, (125,000-150,000) the automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to be replaced. Typically the transmission does not need to be completely overhauled.
At higher mileages (125,00+) the Engine Coolant Temperature Sensor may intermittently stop working, especially when the vehicle is fully warmed up. This can result in illumination of the Check Engine Light and/or an engine stalling problem.
On vehicles with a manual transmission, worn shift bushings can cause the transmission to pop out of gear, especially when coasting down in 1st or 2nd gear. Replacing all the shift linkage bushings is pretty straight forward and not expensive and will commonly correct this concern.
The EGR System tends to get restricted or blocked with carbon after 100,000- 125,000 miles which will cause an emissions test failure for NOX. If the EGR system is equipped with an EGR temperature sensor it will trigger a Check Engine Light for improper EGR flow. The repair is to clean out the EGR passages and the EGR Temperature sensor. Our technicians tell this repair is pretty straight forward and takes about 1-1.5 hours. It is al...
Toyota T100 Recalls (Recent)
RepairPal Expert Overview:
Toyota is recalling 1996 T100, Camry, Celica, Corolla, and Tacoma models because the cruise control system may fail to hold the speed set by the driver and can accelerate above the intended set speed. This can increase the risk of a crash. Dealers will replace the cruise control assemblies.
RepairPal Expert Overview:
Toyota is recalling 1990-1995 4Runner, 1990-1995 pickup, and 1993-1998 Toyota T100 trucks because the steering relay rod may crack under stress. This may increase the risk of a crash. Dealers will replace the steering relay rod.
Toyota T100 Questions and Answers
the truck has 200000 miles on it when i come to a stop the rear go up and down . got new shoe on rear what mite be the cause of up and down
Where is the fuel pump relay located?
it just stop going in reverse it still goes in drive fine, and when i put it in reverse the back up lights still come on
The ABS brakes lockup the front wheels
why? and can i disconnect the ABS system?
Looking for the best price to remove existing automatic transmission (300,000 miles) and replace it with the low mileage, good condition unit I just bought. Also u- joints, fluid, filter etc as ne...
Toyota T100 Reviews
my t100 has 173.000 miles on it bought it brand new...reg.t100 problems..only thing I wish I what have done was get an stainless stell exhaust.. I want thru 4 so far...still runs like brand new...only one front end all. because I had to replace a tie rod end..but over all I got my money worth I think...I hate to guess how much I spent in gas the lat 17 teen yrs..lol the truck is really rusting out bad..i guess when the wheels fall off I get another car or something..that get good mpg...people stop your bitching about how your t100 frame rails have rust on them...if you were this old on the east coast any truck would hsve rust...doug
Great Truck. I did a bunch of research before buying my 97 T-100 4x4. It is rated one of the most reliable and solid trucks ever built. It had 112k miles on it and now has 212k. I have had to replace the transmission at 190k, which is about the breaking point, but other than routine stuff like brakes, battery, front axles, and fluids, I have not had to do much work on it. It always starts right up, the oil stays clean and has plenty of power for a v6. It's not a hauling truck but a go anywhere kind of vehicle perfect for an outdoorsman with gear and has plenty of room. It's my third toy truck. I had a 86 truck (22RE) I drove for a while and sold, still running great with 375k on it and a 88 4runner (3vz) I drove and then sold still in great shape with 280k on it. Kinda wish I kept them. Rock Crawler projects!!
i bought a 97 t100 sr5 2wd 5 speed about a month ago it has 195000 as of now. i have put 5k on it myself. I really love this truck its small enough to go anywhere but big enough to tow and haul. the engine runs really well. i have had to put some money in to it though, and let me tell you these parts arent cheap and thats if you can find them. autozone only carries about half of what you need including wheel bearings and a number of other things that should be supplied. I am having real problems with my 5 speed trans. front input shaft bearing is going bad witch is going to be a 1000 for a rebuilt one. clutch pedal broke though firewall had to make my own bracket to stop anymore damage. drained rearend today and it was full of water. these trucks where cheaply made but there are some great ones out there just beware of the bad ones.
I purchased my '96 T100 last Feb. with 312K (now @ 327K). The first thing I did was purge the trans with synthetic atf (I had great luck doing this in my '81 pick up with a 3vz/auto from an '88 runner with over 300K). After driving for a few months I decided to plow with it this winter. I am amazed at how much pep this truck has right off idle, it does however seem to lag at around 65mph (ie, hills and hauling). I still get 19-21 mpg with the auto (which is higher than '12 models...) Since recently replacing head gaskets and head bolts I've decided to install a TRD Super Charger. My only real gripe is the brakes, rear discs and optional locker would have been nice but can be added.
I agree that this truck is very straight forward in it's design and is actually a pleasure to work on with no mysteries as to how stuff works. A common problem I've found is intermittent 4wd failure which is usually a direct failure of the release vacuum switch on drivers fender well below the fuse box, that disengages the front axle. It bypasses and won't allow the actuator to pull. I just disconnected mine and capped the vacuum tube. Just make sure that when you disengage transfer case that you are traveling below 5mph and not under power (it bangs).
I purchased a 1997 T-100 in 2003, it had 100,000miles on it then ,now it has 165,ooo,on it ! I have installed a new clutch kit and gas tank also a new outer rear wheelbearing and I did all the repairs myself , so I know this truck pretty well ! However , now the truck turns over many,many times befor it finally starts if it does and I would like to know why ,and if any other T-100 owners have experienced this also ? I put in a new battery and added injector cleaner ,the truck runs great but starts with much difficulty ,this has been happening for 2 months now ,I am stumped , here in G. Ma. Ed