Question about Check Engine light

What's the point? It seems that you found the problem, which is a pretty common one.

I obviously don't want to fix it if it ain't broken. I may not have formulated my question properly, but all I wanted to know was "Does a 2002 Hyundai Elantra retain the last error code, even if the Check Engine light went out on its own".

"John" wrote

Yes, for a period of time. Eventually, it'll delete that, too, but it'll take much longer than killing the lamp.

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Thanks,

Ghislain

"hyundaitech" wrote snipped-for-privacy@localhost.talkaboutautos.com...

The check engine light came back on today and the issue apparently is the right front wheel speed sensor. A quick seach on the net seems to indicate that this is a fairly common issue with these cars. How difficult is that sensor to replace? Special tools needed?

Thanks.

"hyundaitech" wrote snipped-for-privacy@localhost.talkaboutautos.com...

There's certainly nothing complicated about replacing the sensor, but sometimes they're quite difficult to work with. Often, the sensor will seize in the steering knuckle and won't come out. Otherwise, it's a simple matter of removing the wheel and fender liner and unbolting/unclipping the wire and sensor, and disconnecting it.

Beware, though, a DTC indicating a problem with the wheel speed sensor signal doesn't necessarily mean the sensor itself is the culprit. The tone wheel on the axle could be cracked or damaged. Or the wiring could be cut or chewed. I've seen each of these more frequently than wheel speed sensor failures.

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I'll simply let the dealer fix it.

Thanks,

Ghislain

"hyundaitech" wrote