Stock.supra.98 Posted March 10, 2018 Share Posted March 10, 2018 Hi All, Hopefully someone can help me with this - so yesterday I was driving my Supra when out of no where the battery and the Exhaust over heat indicator along with the rear light failure and the large master warning light came on. Just to be clear they only came on when I took my foot off the accelerator pedal, but when back on they would all disappear - this would happen regardless of speed. Also with the above issue is that I could hear an odd whining noise, a friend of mine has had a look but no lights showed on the dash but he said it could be to do with the alternator. Has anyone ever had this issue or know where I should even start to look? Thanks in advance! p.s. hope this is in the right thread, if not please advise. Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted March 10, 2018 Share Posted March 10, 2018 Usually those symptoms are attributed to alternator failure or crank pulley is failing. Check that the outer ring of the crank pulley has not come loose. This is a common issue with crank pulleys after some age. Try marking the crank pulley with a line of tipex and see if the lines move. If alternator is dying then not much you can do other than getting it refurbished or getting a new one. Quote Link to comment Share on other sites More sharing options...
Stock.supra.98 Posted March 10, 2018 Author Share Posted March 10, 2018 Thanks, then in that case do you or anyone on here recommend a place for alternators? Just trying to think ahead of worst case. Quote Link to comment Share on other sites More sharing options...
evinX Posted March 10, 2018 Share Posted March 10, 2018 Thanks, then in that case do you or anyone on here recommend a place for alternators? Just trying to think ahead of worst case. Ditto, ive been considering a polished alternator or even possibly a mechman one from SRD but are quite pricey Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted March 10, 2018 Share Posted March 10, 2018 TCBParts do a new alternator for 120, or 90 with an exchange of your old alternator. Can recommend the alternators they supply Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted March 10, 2018 Share Posted March 10, 2018 Id definitely say its crank pulley Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted March 12, 2018 Share Posted March 12, 2018 Check the wires to the small plug on the alternator, one may be breaking or broken. Definitely an alternator / alternator drive issue. Quote Link to comment Share on other sites More sharing options...
Stock.supra.98 Posted March 14, 2018 Author Share Posted March 14, 2018 (edited) Thanks guys! Will be checking it over this weekend or early next week, will come back with what needed to be done! Thanks for the help! **Update** I took the car out for a spin and found out that the light disappears over 2,000 revs and over. any thoughts? Edited March 15, 2018 by Stock.supra.98 Update (see edit history) Quote Link to comment Share on other sites More sharing options...
Stock.supra.98 Posted July 27, 2018 Author Share Posted July 27, 2018 Hey I know I'm however many months late but it was a alternator issue. Thanks for the help all!! Quote Link to comment Share on other sites More sharing options...
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