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1998 Toyota T100 Repair and Maintenance

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

1998 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.

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.

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.

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1998 Toyota T100 Questions

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 ...

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&#...

I've mistakenly trusted various shops with changing my oil and checking my fluids, but recently noticed a leak in my radiator, so I bought the part and asked a friend to help.
While swapping in the new radiator, my friend disconnected the hose that runs from the transmission to the radiator ...

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1998 Toyota T100 Recalls

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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