Question about 2007 Hyundai Santa Fe Limited

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Speedometer no longer works

The speedometer started to oscillate just a few miles/hr. The following day it fluctuated about 10 miles/hr and would occassionally "hang" at 40-42 miles/hr. By the third day, it just stays at zero and the odometer is no longer updating. The dealer, which saw it whille it was still working, said it was the speedo head and wanted $784 for a new gauge cluster (can't get speedo separately) plus tax and labor since the bumper to bumper warranty is out by 7K miles. Any thoughts/suggestions?

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  • Vernon_VA Nov 03, 2008

    Thanks for answering. The Technician spent about 45 mins. checking out the diagnostics, trying to determine whether it was the sensor or speedo head. He took it for a couple of short trips and after the second one he came back in and stated it was the head though I'm not sure how he came up with this conclusion. I'll try your suggestions and see what happens. Again, thanks!!

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Hi did the dealer pull this diagnosis out of hat ? or did you observe him carry out a series of diagnostic checks? i would first check the speed sensor electronis on g/box disconnect and clean/check for corrosion etc ? wd40 spray and dry plug you can test with voltmeter if circuit is ok then re plug and try again? other possibility could be actual sensor fault which you can change diy with a doner sensor which will then eliminate sensor fault? worth checking out before parting with $784+ ? make a thorough check of wires to sensor for any decay etc best of luck from uk ps make sure you pick speedo sensor not reverse light sender to verify put in reverse so light is on then disconnect if still on you have speed sensor?

Posted on Oct 31, 2008

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