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Cluster gauge issue - '99 Malibu Response LX


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Within the cluster gauge (oil psi/H20 temp/fuel level/voltage), the fuel level gauge and H20 temp gauge are inoperative.  Oil PSI and voltage work fine.  The shop tried replacing the cluster gauge and replaced the computer (bypassed a new one for testing purposes) and no success.  Any direction? 

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16 hours ago, Bozboat said:

What condition is the fuel sender and the water temp sensor?  If they are original they likely need replacing. 

They are most likely original, i'll start down that path.  Thanks much for your response.

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1 hour ago, Cullinane said:

They are most likely original, i'll start down that path.  Thanks much for your response.

Test them both with your Ohm meter before you replace them.

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I'm seeing potentially a water temp sensor feeding the dash gauge, and one that potentially feeds the ECM.  Should I be checking both of them for replacement?  I hav'ent looked specifically at my boat as it is still in storage, yet looking at other 5.7 GM/Indmar pics of the front intake manifold/thermostat area/waterpump area.  

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On 3/26/2023 at 3:30 PM, Cullinane said:

I'm seeing potentially a water temp sensor feeding the dash gauge, and one that potentially feeds the ECM.  Should I be checking both of them for replacement?  I hav'ent looked specifically at my boat as it is still in storage, yet looking at other 5.7 GM/Indmar pics of the front intake manifold/thermostat area/waterpump area.  

Yes you should have two.

pull them and inspect as well as test them. I replaced mine awhile back just because they looked corroded.  Testing them is smarter. On the fuel sender,  check the connections to ground.

 

4BBF9697-6DCB-4E58-831E-6FE1A9F481A2.jpeg

 

D2156CBD-149B-47C7-A43E-604C80E465DF.jpeg

Edited by Bozboat
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  • 3 weeks later...

Replaced both water 4/10/2023 temperature sensors, still no operating temperature gauge within the cluster gauge

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  • 1 month later...
SaskBoater

Would be curious to know what you found for a fix.  My 00 VLX just acted up tonight on the water temp guage stuck nearly all the way hot. Fuel guage too.  After pulling out of the water and trailering home both guages work fine at home

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