1998 Toyota Avalon Repair and Maintenance

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

On higher mileage vehicles, an engine misfire may develop and/or the Check Engine Light may illuminate due to a failed ignition coil. It is not uncommon to replace all the coils when the first one fails in order to prevent return trips to the repair shop.

The Check Engine Light may illuminate because a component of the oxygen sensor stops working. As a result the engine computer is unable to determine the proper ratio of air to fuel for the engine. Replacing the failed oxygen sensor should correct this concern.

 

The 6 cylinder engines have a tendency to leak oil from the valve cover gaskets, especially the one near the firewall.

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All plugs n wires changed. No engine light on. Idles up n down n lights get bright ndim as idle ffluctuates. Coil? Does check engine light come on for coil

Is this something I can do myself?

No clicking noise when key is turned

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EQUIPMENT DESCRIPTION: AFTERMARKET THEFT DETERRENT SYSTEMS USED ON 1998-1998 TOYOTA RAV4, AVALON, AND SIENNA MODEL VEHICLES DISTRIBUTED BY SOUTHEAST TOYOTA DISTRIBUTORS, INC. IN THE STATES OF ALABAMA, FLORIDA, GEORGIA, NORTH AND SOUTH CAROLINA. THE ALARM WIRING HARNESS PLUGS INTO THE VEHICLE'...

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My car is making a knocking noise increasing in loudness. If it is not the motor, what else could it be? My car has slightly over 230,000 miles.

This car now has 104k miles and it runs beautifully. All I had to do is replace the rotors, brakes, tires, which are all due to the high mileage. The mechanic tells me it will run for some time.

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