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2003 Lexus GS300 Questions

Get answers to questions about your 2003 Lexus GS300 at RepairPal. Find solutions, diagnose problems and get back on the road.

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12
questions

My heat/air only comes out of the defrost, also, the dual temperature does not work.

Loud alarm, when eng. starts no breaks. Drove fine the day before thin wham! No breaks! I did notice that the reservoir cap seal split and pice was found!
Probly not sealing, can this be a factor? Can the seal broken on the reservoir cap cause the problem by air getting in be the problem?

The problem is constant regardless of how low the passenger side temperature is set. What is the problem and what will it cost to repair.

Replaced catalytic converter and smog tech said to perform a driving reset.

Will start but dies again

shop diagnosed as replace exhaust manifold,catalyatic converters,center pipe,oxygen sensorsX3 and gaskets -$3675.00 Showing code P0430 catalyst efficiency below threashold
This happened a week ago and are still on. if the converters are below effeciency ,any way of cheating the lights ?
thanks
Peter

This ck enging and vsc light comes on then goes off and after a few days it comes on again.cant figure it out

This ck enging and vsc light comes on then goes off and after a few days it comes on again.cant figure it out

stater continue to run with ignition off

signal for bad brake lights is on.I checked bulbs, replaced 1.aignal wont go out even though all brake light bulbs are good. PLEASE HELP

the signal for brake light bulb replacement stays on.all bulbs have been checked.they(1)changed,all brake lights working. brake light signal still on.I think its a electrical problem. PLEASE HELP

A warning light of the rear trunk area of the car is on but thelights all work, what can it mean?