Got hit by the DME...
07-25-2007, 02:24 PM
#32
Race Car
Thread Starter
On mine, the engine would turn over but not turn on. Luckily, it was in the garage and not on the freeway. Preemptive replacement? Wouldn't hurt.
07-25-2007, 08:27 PM
#34
Race Director
One of the first things I did to my car when I got it last year was order and install a new DME relay and keep the original one in w/ the on-board toolkit as a spare.
Got mine from Sunset, $21 sounds about right.
Got mine from Sunset, $21 sounds about right.
10-15-2007, 05:24 PM
#35
Rennlist Member
Bump.
Just happened to me today in the parking lot of Wegman's. I pulled my spare DME out of the glovebox, replaced the old one (it even says "DME Relay" right on it, how easy does it need to be?) and was back on the road in minutes.
Simple, cheap insurance and/or preventative maintenance. If you haven't replaced yours or ordered a spare, consider this a friendly reminder.
As always, Rennlist rocks!
- Dave
Just happened to me today in the parking lot of Wegman's. I pulled my spare DME out of the glovebox, replaced the old one (it even says "DME Relay" right on it, how easy does it need to be?) and was back on the road in minutes.
Simple, cheap insurance and/or preventative maintenance. If you haven't replaced yours or ordered a spare, consider this a friendly reminder.
As always, Rennlist rocks!
- Dave
10-15-2007, 05:33 PM
#36
Three Wheelin'
Join Date: Aug 2006
Location: Bremerton, WA
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LOL. Me too. I ordered one for my 964 and 993 shortly after I bought them. While doing suspension I found one the previous owner had stashed in the spare tire well. Cheap insurance.
10-15-2007, 05:33 PM
#37
Why are the DME's so prone to failure?? It's basically sealed in the fusebox, so contamination can't be an issue....WTF?
10-15-2007, 10:05 PM
#38
Rennlist Member
If any electrical engineer types want to do a relayopsy, I can drop it in the mail.
- Dave
11-07-2007, 04:49 AM
#39
Burning Brakes
Join Date: Aug 2006
Location: Santa Barbara, California
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With all electronics, there is a life expectancy. You'll sometimes see thats its good for "10 years". When tested these electronics were never really run for 10 years, they just run many of them and see how many fail. With some wonderful math the researcher comes up with a number that they end up stamping on the box. My university is the leader in LED research and a Professor here invented the GaN blue LED and thus the "Blue-Ray DvD" laser. When testing these LEDs tons of them are run and then after a certain number of hours we check how many failed. I guess DMEs had a slightly higher fail rate. If you really want to hear the funny part, the reason Porsche Ceramic Composite Brakes are so expensive is because not only are the materials expensive to manufacture without impurities, its that 1 out of every 10 is a failure....thats an intense fail-rate. Anyways hope that didnt confuse people more.
11-07-2007, 08:05 AM
#40
