I suspect my lexus rx330 have sucked water after a heavy flood that covered my area, the engine was switched off and refused to start.

I bought this car like three months ago and the guy didn't change anything in it.

car will not start

while driving all lights came on at once I also have a screeching whistle sound if air is on usually stops after a few min. but sounds horrible. on freeway had a bumper from a car come flying at me and could not be avoided so I ran over it the next day all these lights came on any ideas would be appreciated thanks

I changed the spark plugs and noticed it had an oil leak. I started the car and it shut down do to the low oil light came on. I know it has a feature to shut down the car when the low is low to protect the engine. So what do I do.

During warm weather hatch stays up fine but when temp drops to lower 30's it slowly creeps down

When I brake the pedal goes to the floor about every third push. Is this the brake booster or master cylinder? What would be the cost to repair?

started app 6 months ago seemed when engine shifting from 2nd to 3rd, now seems to happen from 3rd to 4th, can feel & hear it from rear, don't notice @ faster speed on hwy

iwant change out the battery cables first ...the ones I bought have only one spot to make connections on each post ....but the Lexus 300 rx 1999 has two positive wire that are connected to two separate positive connections on the battery connect from the factory.....Question I join both Positives on the connector ....or do they need to be separted buy the type of battery connector that has the two connections?