1998 Toyota T100 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1998 Toyota T100

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1998 Toyota T100 Problems

Check Engine Light Due to Failed Coolant Temperature Sensor

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.

Check Engine Light Due to Restricted EGR System

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 also wise to verify the EGR system components i.e. the Transducer, EGR Valve and VSV Solenoid at this time.

ABS Warning Light Due to Failed Wheel Speed Sensor

At higher mileages, an anti-lock brake system wheel speed sensor may wear out and illuminate the ABS warning light. It is recommended to replace the sensor with a factory part and be sure to clean all rust and debris from the mounting area because the mounting distance is critical. Failure to do so may result in the new sensor setting false trouble codes. Be sure to check the condition and runout of the front wheel bearings on the 2WD and 4WD vehicles and the CV joints on the 4WD vehicles since worn wheel bearings and/or CV joints can cause the ABS trigger rings to rub against the ABS sensors and damage them.

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1998 Toyota T100 Questions

where is the location of the Transmission computer (1 answer)

or this is the part I think I need
Toyota T100 1996-1998 Relay Integration Box Module Computer ECU 82641-34010
I installed a DVMotorsport gas saver and after one tank of gas My truck stays in low gear , and the low gear is light up on the dash , and the seat belt light stays on unless I shift ...

Do I need to replace my shock absorbers? (2 answers)

I've heard it both ways, mostly that they need to be replaced by someone trying to sell me an expensive new set.
My car-nut buddy says they're fine, never need replacing.

But my truck seems to sit a little lower on the driver's side (I'm not THAT heavy, only 175 lbs!) and the ...

Changed oil - got 3 quarts out, put 5 back in, but there's no leak/burn, WTF? (2 answers)

It had been around 5,000 miles since I had it changed at a shop, and after I put the 5 quarts in that the manual suggested, it read way above full on the dipstick.

My car-repair nut friend thinks I have the wrong dipstick, possibly I got a 4-cyl dipstick for a 6-cyl engine?

But that doesn&#...

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1998 Toyota T100 Recalls

Toyota Recalls 1990-1998 Trucks Due to Cracked Steering Relay Rod

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.

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