jonesy 111 Posted April 23, 2012 Report Share Posted April 23, 2012 First off i know nowt about engines,got an 04 isuzu diesel,when i turn the ignition off you can hear what sounds like a whirring noise before going quiet in about 30 seconds,just wondering if this is normal as i have had to change the battery the other week and the battery i put on is now playing up,i was thinking maybe it is powering something when the engine is not on? Quote Link to post Share on other sites
dymented 2,220 Posted April 23, 2012 Report Share Posted April 23, 2012 fuel pump bud Quote Link to post Share on other sites
jonesy 111 Posted April 24, 2012 Author Report Share Posted April 24, 2012 Aye it sounds like coming from that area,so is that normal?THANKS Quote Link to post Share on other sites
Qbgrey 4,408 Posted April 24, 2012 Report Share Posted April 24, 2012 could be engine fan,my rodeo makes a noise when i turn off,maybe some vacumn ,its not a problem. Quote Link to post Share on other sites
jonesy 111 Posted April 26, 2012 Author Report Share Posted April 26, 2012 Thanks Quote Link to post Share on other sites
cameroncharles 2 Posted May 21, 2012 Report Share Posted May 21, 2012 If it sounds like a very high pitched fan it might be the turbo still spinning down. They do spin at 30000rpm. My old isuzu MU would do this occassionally. Try letting engine cool down abit before turning off,checl oil fill level as well. Cam Quote Link to post Share on other sites
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