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Robert2018

Gas Guage Bouncing

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Robert2018
Posted (edited)

My 98 Response LX gas guage “bounces” and doesn’t display correctly.

 

Oddly my tow vehicle did the same thing, my mechanic replaced the fuel pump under warranty and it still doing same thing! He suggested the instrument cluster is the issue. 

 

My response runs excellent! Is this a instrument failure and likely not a fuel pump problem ? I appreciate everyone’s help. 

 

 

 

Edited by Robert2018
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BlindSquirrel
On 3/14/2019 at 11:13 AM, Robert2018 said:

My 98 Response LX gas guage “bounces” and doesn’t display correctly.

 

 

 

 

Yep, I’d start at the sending unit like kerpluxal suggested. Here is a step by step...

 

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wakesetterDD

here's another step by step: 

 

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Bozboat
On 3/14/2019 at 11:13 AM, Robert2018 said:

My 98 Response LX gas guage “bounces” and doesn’t display correctly.

 

Oddly my tow vehicle did the same thing, my mechanic replaced the fuel pump under warranty and it still doing same thing! He suggested the instrument cluster is the issue. 

 

My response runs excellent! Is this a instrument failure and likely not a fuel pump problem ? I appreciate everyone’s help. 

 

 

 

On my 99, one wire off my sender goes to the engine block to ground, one goes to the MDC and one powers the sender. The ground wire must be grounded for some number of seconds before the gauge will work. Supposedly the delay is provided by the MDC to avoid the bounce problem. Check to see if you have good ground connections. I’m assuming that all other gauges are working correctly and you have no water pushed up the pitot tubes into the MDC.

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Robert2018
7 hours ago, Bozboat said:

On my 99, one wire off my sender goes to the engine block to ground, one goes to the MDC and one powers the sender. The ground wire must be grounded for some number of seconds before the gauge will work. Supposedly the delay is provided by the MDC to avoid the bounce problem. Check to see if you have good ground connections. I’m assuming that all other gauges are working correctly and you have no water pushed up the pitot tubes into the MDC.

This is a very good point ! In fact one of my speedometers does not work so water into MDC is a possibility. I will find out in a couple more weeks when get boat out of storage 

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Robert2018

& thank you for the videos! I value everyone’s time & effort. 

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MadMan
Posted (edited)
On ‎3‎/‎14‎/‎2019 at 11:13 AM, Robert2018 said:

My 98 Response LX gas guage “bounces” and doesn’t display correctly.

 

Does it bounce when the boat is not moving, sitting on the trailer?

Edited by MadMan

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Robert2018
15 hours ago, MadMan said:

Does it bounce when the boat is not moving, sitting on the trailer?

I’m not sure?! I’ll know when get boat out of winter storage, but from what I remember even with boat idling on calm water guage bounced 

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Robert2018
On 3/17/2019 at 5:34 AM, MadMan said:

Does it bounce when the boat is not moving, sitting on the trailer?

Yes it does bounce when boat sitting in driveway, fake a lake attached running 

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Eagleboy99

The gas gauge is merely a suggestion.

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