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Mr.scotty
Enthusiast
May 4, 2011, 5:08 PM
Post #1 of 10
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91 S-10 blazer speed-o
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The speedometer in my Brother inlaws 91 S-10 works intermitenly.
Works some days and some days it don't.
It's not the electronic rally dash, just the standard one.
I'm not sure if it has a cable or a speed sensor ( i guess that's my biggest question)?
What do you guys think it could be?
Thanks
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Your only as good as your tools!
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zmame
Veteran
/ Moderator
May 4, 2011, 5:19 PM
Post #2 of 10
(1617 views)
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Re: 91 S-10 blazer speed-o
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I belive 91 s10 has speed sensor. You need a hand held scope to test it.
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Mr.scotty
Enthusiast
May 4, 2011, 5:37 PM
Post #3 of 10
(1612 views)
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Re: 91 S-10 blazer speed-o
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So do you think this is his problem?
What else could it be if not?
Thanks
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Your only as good as your tools!
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zmame
Veteran
/ Moderator
May 4, 2011, 5:41 PM
Post #4 of 10
(1607 views)
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Re: 91 S-10 blazer speed-o
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use the scope on the input signal for the speedo.. When you speed up should be steady increase if it suddenly drops you know the sensor is bad.
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Mr.scotty
Enthusiast
May 4, 2011, 5:46 PM
Post #5 of 10
(1601 views)
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Re: 91 S-10 blazer speed-o
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One small thing.
I ain't got one! haha
No other tests i can do to it?
It'd be cheaper just to get one or two at the junk yard for a few bucks I guess.
His ABS light is on also I'm not sure, do you think it's on because of the speed-o problem?
It had the Speed-o problem before the ABS light was one he says, but he's real good at putting gas in it and that's about it lol.
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Your only as good as your tools!
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zmame
Veteran
/ Moderator
May 4, 2011, 5:49 PM
Post #6 of 10
(1599 views)
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Re: 91 S-10 blazer speed-o
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I sapose you could use a analog meter and get somone to drive while somone watches the needle.. not as accurate as scope.. might try that.
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Mr.scotty
Enthusiast
May 4, 2011, 5:58 PM
Post #7 of 10
(1595 views)
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Re: 91 S-10 blazer speed-o
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Is this sound like a good scope for $180 bucks?
Ifso I'll buy one cause It seems like you need one for everything!
HPS10 - Handheld 10MHz Oscilloscope
The Velleman Personal Scope is not a graphical multimeter but a complete portable oscilloscope at the size and the cost of a good multimeter. Its high sensitivity - down to 0.1mV/div - and extended scope functions make this unit ideal for hobby, service, automotive and development purposes. Because of its extreme value for money, the PersonalScope is well suited for educational use in schools and colleges. Suitable for measurements on audio equipment, mains voltage applications, digital signals, all kind of sensors, signal analysis in automotive applications, car stereo, etc… Its full auto setup function, makes measuring waveforms very easy.
Specifications: - 10MHz sampling rate
- 0.1mV sensitivity
- up to 2MHz analogue bandwidth
- 5mV to 20V/div in 12 steps
- 200ns to 1hour/div time base in 32 steps
- full auto set up
- trigger mode: run, normal, once, roll, slope +/-
- X and Y position signal shift
- DVM readout with x10 option
- audio power calculation (rms and peak)
- dBm, dBV, DC, rms ... measurements
- signal markers for Volt and Time
- frequency readout (through markers)
- recorder function (roll mode)
- signal storage (2 memories)
- LCD: 128x64 pixels / high-contrast
- up to 20h on alkaline batteries
- power supply: 5 x 1.5V AA battery or Nicd / NiMH (not incl.)
- includes battery charging circuit
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Your only as good as your tools!
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zmame
Veteran
/ Moderator
May 4, 2011, 6:15 PM
Post #8 of 10
(1588 views)
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Re: 91 S-10 blazer speed-o
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Sounds good for the cash.. probably all you will need.. Could by snap on Vantage PRO for $2700 lol..
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Mr.scotty
Enthusiast
May 4, 2011, 6:22 PM
Post #9 of 10
(1584 views)
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Re: 91 S-10 blazer speed-o
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Ok cool, This was the cheapest one i could find.
My birthday is in july so maybe I'll leave some hints! lol
I'm 100% sure I get one one way or another.
But as for rite now I'll do a flash for the ABS light and see what that says, and just have him buy the speed sensor from the junk yard to try first, and if that don't work I'll just wait for my scope.
Thanks again very much for your help!
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Your only as good as your tools!
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Mr.scotty
Enthusiast
May 5, 2011, 9:06 PM
Post #10 of 10
(1565 views)
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Re: 91 S-10 blazer speed-o
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Ok well i guess I'm getting my scope sooner then i though, I ordered it and it should be here end of next week!
Can't wait, Now if i could find a good book on how to use it and stuff like that.
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Your only as good as your tools!
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