Speedometer Intermittent
#1
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Speedometer Intermittent
Thought I posted this but can't find it.
My speedometer on my '88 911 is intermittent. Only happened a few times this week, but the speedo drops to zero and odd/trip odd stop moving. The backlighting still works.
Other than checking the connections on the back of the gauge, what else can I look for? I'm assuming something is loose. If there is a specific speed sensor, I'd appreciate any info. I'm going in for the annual service in about 6 weeks, but would like to fix it myself if able.
Thanks!
My speedometer on my '88 911 is intermittent. Only happened a few times this week, but the speedo drops to zero and odd/trip odd stop moving. The backlighting still works.
Other than checking the connections on the back of the gauge, what else can I look for? I'm assuming something is loose. If there is a specific speed sensor, I'd appreciate any info. I'm going in for the annual service in about 6 weeks, but would like to fix it myself if able.
Thanks!
#3
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Join Date: Nov 2008
Location: Wadsworth, Ohio
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This a fairly common problem. Mine has a bad sender. It is held in by one bolt on the driver's side of the transaxle. It is an easy job to replace it. Mine would play dead for a few minutes each time I started the car. Be sure it is not the speedometer before ordering the part as it is about $100. Part # is : 911-606-910-01. Shop around for a good price.
#4
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I'll check the sender...I had the gauges rebuilt/serviced a few years back so most likely the sender. Will check if something is loose before ordering.
Thanks!
Thanks!
#5
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Pulled the gauge out and found a wire hanging freely with a connected. However, the back of the speedo has three connections. One has three wires, and the other two have two wires. The hanging wire is red. Any thoughts?
#6
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Location: Wadsworth, Ohio
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Here is a pic of the connections for the speedo:
http://forums.pelicanparts.com/uploa...1103142415.jpg
http://forums.pelicanparts.com/uploa...1103142415.jpg
#7
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After a long drive this week, I'm convinced it is the sender. Though it looked secure, it probably needs replacing. The speedometer only failed twice on me and for just a few seconds each time. However, one time it failed, I had the cruise control set and when the speedometer failed, the cruise control disengaged leading me to conclude that the sender is going.
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#9
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#10
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Sender replaced...fixed it
#12
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No..