Do Not Sell My Personal Information Jump to content


  • Join The Club

    Join the Lexus Owners Club and be part of the Community. It's FREE!

     

Battery / Alternator Problem


johnboy007
 Share

Recommended Posts

Can anyone help me figure out a problem. I have just purchased a rx300 2002 se auto and it has been running fine for a week. This morning when I went out to start it it would only run when I kept my foot on the gas keeping the revs, soon as I took my foot off the gas the engine died. I have now got it running with idle after holding the revs up for 1 or 2 minutes, although it only idles at about 300rpm, which is very low. Going back to my early mechanical days this makes me think its an alternator problem esp as the lights brighten when revving. could it be a bad Battery as well. The Battery was showing over 12v when off & my wife held multi meter on Battery while I revved up engine & she said it crept up from about 13 something to 14.3 after minute.

Any help would be appreciated, John

Link to comment
Share on other sites

If you get 12-14volts when revved up to say 1500rpm then it looks like the alternator is good

.

If the batterry is old it could have a bad cell and gives up soon as any load is put on it

Might be worth checking all Battery connections and ground [earth] points.

Or a different Battery.

Link to comment
Share on other sites

thanks for that royt, had Battery checked out and was fine, but only had a 25% charge, even though i had brought it back home over 100miles. I put it on a trickle charge to get it back to 100% and now its fine, Checked it with mutimeter tonight after parking and engine off and showed 13.06 volts, this soubds good to me as i know 12.65+ is equal to 100%. is 13.06 too high or is that ok ?.

Link to comment
Share on other sites

Latest Deals

Lexus Official Store for genuine Lexus parts & accessories

Disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via eBay links

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.

 Share






Lexus Owners Club Powered by Invision Community


eBay Disclosure: As the club is an eBay Partner, the club may earn commision if you make a purchase via the clubs eBay links.

DISCLAIMER: Lexusownersclub.co.uk is an independent Lexus forum for owners of Lexus vehicles. The club is not part of Lexus UK nor affiliated with or endorsed by Lexus UK in any way. The material contained in the forums is submitted by the general public and is NOT endorsed by Lexus Owners Club, ACI LTD, Lexus UK or Toyota Motor Corporation. The official Lexus website can be found at http://www.lexus.co.uk
×
  • Create New...