1998 Lexus LX470 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1998 Lexus LX470
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1998 Lexus LX470 ProblemsLoud Vacuum Cleaner Noise on Cold Start
Drivers may hear a loud noise, much like a vacuum cleaner, coming from their engine on cold starts. This affects the 1998-2005 Lexus LX470.
The noise is from the secondary air pump, which sends hot air to the catalytic converter when the engine is cold. This allows the catalytic converter to clean exhaust better, and lower emissions while the engine is warming up.
Pump failure may result in:
- Check engine light
- OBD trouble code P1445
- Smog test failure
Fixing the issue involves removal of the intake manifold, and replacement of the secondary air pump.
The Check Engine Light may illuminate due to an evaporative emission (EVAP) system fault. Our technicians tell us these EVAP system faults can be difficult to diagnose but it is not uncommon to find a failed charcoal canister or a loose or worn gas cap.
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.
1998 Lexus LX470 QuestionsCar will not start, have to turn key off and on until it starts. (2 answers)
No clicking . no sounds at all. Have replaced starter with a new one, replaced ignition switch with a new one, had battery checked for correct voltage. All power accessories function when the key is turned to start position. Does not occur all of the time. Sometimes I have to recycle the ...
REMOVED CABIN AIR FILTER, AND CLEANED INSIDE. DRAIN APPEARS TO BE CLEAR,AND DRAINING TO OUTSIDE. STILL HAVE WATER LEAKING FROM LOWER SECTION OF HEATER/AC HOUSING
I have a lexus LX470 year 1998 with 70K miles 1 month ago I got the check engine ligh on for the first time ever I have taken it to the dealer 3 times because the first two times they said it was a fault with the velocimeter then that is was juts a resetting issue and know they say I have to chan...