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07-31-2021, 04:02 PM | #1 |
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Location: Eastern Oregon
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Stock Three Hole Cluster ?
With the ignition on, engine off, how many idiot lights should appear ? I only have generator and oil showing. Is this normal ? Water temperature light has never lit up...thanks
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71 C-20 07 Magnum RT AWD |
07-31-2021, 04:28 PM | #2 |
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Location: Simi Valley, CA
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Re: Stock Three Hole Cluster ?
The temp light should illuminate when the key is in the "start" position. I think that the oil light should too, although when the engine isn't running, the light would be on, anyway.
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
07-31-2021, 05:34 PM | #3 |
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Re: Stock Three Hole Cluster ?
Temp and brake warning lights should come on only while the key is in the cranking position.
As mentioned the generator and oil pressure lights would normally be on when key on but not running. They might go out while cranking (especially the oil one).
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1970 C10 LWB 350SBC, SM330 Muncie (not saginaw SM326) (on tree), 3.07 open (assumed), PS, PB, Idiot lights |
07-31-2021, 06:11 PM | #4 |
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Re: Stock Three Hole Cluster ?
When I turn the key to the first position I have a oil pressure and generator light. So the other two lights in the fuel gauge on right should be parking brake & temperature ? ...thanks...they have never worked ?
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71 C-20 07 Magnum RT AWD |
07-31-2021, 07:05 PM | #5 |
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Re: Stock Three Hole Cluster ?
The Brake warning is from the distribution block, not the e-brake pedal/handle. If the front or rear service brakes lose pressure it should illuminate.
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1970 C10 LWB 350SBC, SM330 Muncie (not saginaw SM326) (on tree), 3.07 open (assumed), PS, PB, Idiot lights |
08-01-2021, 01:27 PM | #6 |
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Re: Stock Three Hole Cluster ?
So the temperature light does not come on in the on position to indicate it’s functional ? Like the gen and oil pressure ?
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71 C-20 07 Magnum RT AWD |
08-02-2021, 04:22 PM | #7 |
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Location: CA
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Re: Stock Three Hole Cluster ?
You should be able to remove the brake and temperature bulbs from the back of the cluster without removing the cluster from the dash.
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08-02-2021, 04:28 PM | #8 |
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Location: Eastern Oregon
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Re: Stock Three Hole Cluster ?
Thanks fellas for all your help ! I really appreciate the information about the bulbs..Jack
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71 C-20 07 Magnum RT AWD |
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