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

Brake master cylinder may need replacing at 125,000 miles

At 125,000-150,000 miles, the Brake Master Cylinder may need replacing. It is critical to adjust the brake pedal to Master Cylinder pushrod clearance or the brakes will drag and over heat.

Driveability Concerns Due to Throttle Position Sensor Out of Adjustment

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.

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.

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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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