Jump to content

How Many Coolant Hoses?


artbuc

Recommended Posts

99 RX300

Want to change out all rubber coolant hoses as preventative maintenance. Know about upper/lower radiator, heater and IACV hoses. Are there any others? Seems like I remember reading posts which mention a coolant hose which becomes accessible when changing out trans speed sensors? Thanks.

Link to comment
Share on other sites


Let me ask a slightly different question. My RX is 9 1/2 years old with 88k miles. Still has all original coolant hoses.

Has anyone out there had a coolant hose failure? If so, which hose failed and what was the age/mileage of your RX when it gave out?

I'm starting to think that the smaller diameter hoses (all hoses other than upper/lower radiator) may last the life of the vehicle. I'm thinking that because they have thick walls relative to their inside diameter.

PS. I think the by-pass hose I asked about in my first post became accessible during replacement of knock sensors, not speed sensors.

Link to comment
Share on other sites

I am on my original hoses too, a little nervous about it, I will change the radiator hoses for sure... bought my lexus in November of 1998 and have 151k miles...

Link to comment
Share on other sites

I am on my original hoses too, a little nervous about it, I will change the radiator hoses for sure... bought my lexus in November of 1998 and have 151k miles...

Thanks Lenore. Judging by the lack of response, I assume coolant hoses are generally reliable for the life of the vehicle. Modern cars are just so much more reliable than the cars I grew up with. When I started driving in 1966, coolant hoses didn't last very long - seemed like I was replacing heater hoses on my old 55 Chevy on a regular basis. Today, I think I do way too much preventive maintenance on my cars.

For example, I still replace brake fluid and coolant every two years (less than 24k miles in my case) and change oil & filter every 3k miles. I'm also doing 2 drain & fills (10 qts total) on the trans every 10-15k miles. I'm sure I could save time and money by extending these intervals but I just can't bring myself to do it.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



×
×
  • Create New...

Forums


News


Membership