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Rjspestcontrol

Guage issues

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Rjspestcontrol

I have a 2000 Malibu sunsetter lxi.  Last year the gauges would work sometimes and then they would stop.  Starting it this year, they seem fine, until yesterday.  No big waves or bumps i hit, just sitting in the driveway.  One day yes, next day no.   I have power to all the gauges, but they never move when i turn the key.  They are supposed to limit then back to nothing.   I have looked up threads on this subject, but I am not handy with electrical, as of yet.  I pulled the gauge panel out and tested each gauge with a meter.  Any help on this matter is greatly appreciated.  i loosened all the wires on the ground bar and wiggled them and tightened hoping just a bad ground or something simple.  No luck.  

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vwztips

I just purchased my 2001 Sportster LX. Tach amd fuel gauges were wacky.

I bit the bullet and got a set from Ron at Skiboatpartsonline.com

Save yourself time and aggravation and replace them all. Took me about 45 mins but i am used to wiring. He provides and easy to follow schematic. For a novice would be around 2 hours.

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Rjspestcontrol

 

ok, testing the gauges with my voltmeter, it appears i have only 1 volt going to all the guages.  The fuel guage is after market ( like that when I bought the boat)  and is the only gauge that is registering 7 volts.   

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Rjspestcontrol

vwz tips.  I am just not 100% that its not the mdc computer. Can i just get different gauges and bypass the mdc and save 500?. Thats what they want for a new mdc gauge computer. 

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Eagleboy99
3 hours ago, Rjspestcontrol said:

vwz tips.  I am just not 100% that its not the mdc computer. Can i just get different gauges and bypass the mdc and save 500?. Thats what they want for a new mdc gauge computer. 

Yes, either from Ron at skiboatpartsonline or roll your own.  But if they are 5" gauges you will have a tougher time sourcing them.

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formulaben

You said you're sitting in the driveway, so I assume you didn't start the motor?  Did you check your lanyard?

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vwztips

Yes the gauge package from Ron deletes the Medallion controller. I was getting screwy volatge readings too.

The harness is plug and play. I would not purchase another Medallion unit as Ron informed me that some of the gauges can cause failure of the MDC and there is no warranty offered.

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Rjspestcontrol
18 hours ago, formulaben said:

You said you're sitting in the driveway, so I assume you didn't start the motor?  Did you check your lanyard?

I had my fake a lake on.   I replaced the lanyard last season. I read some threads about that as well, and was a cheap potential fix. No luck.

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Eagleboy99

Swap the plugs at the back of the gauges to see if one of them is an issue or if the problem is following the connections; indicates MDC.  POC that thing...

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drh
Posted (edited)

Here's the Medallion troubleshooting guide if you haven't seen it yet. I would start here:

If all gauges are coming and going together I would suspect either the MDC itself or the 5 pin connector going from the MDC to the gauges.

@vwztips If you're looking to get rid of any of your recently replaced Medallion parts let me know

Edited by drh

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Rjspestcontrol

i just ordered the new gauge kit from Ron.  Thanks for the heads up on that.

 

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Eagleboy99

@DRH - I will have some Medallion parts soon.  :)

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cla10beck
Posted (edited)

I am looking for either a 5” tach or speedo, so if @DRH or @vwztips doesn’t want one of those, I’m interested 

Edited by cla10beck

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Eagleboy99

The tach is pooched - always shows 2500 RPM - but is accurate above that.   Like idle is 3200 (700 RPM). Speedo is perfect.  Will let all know when I am ready to sell.  Oh, the MDC works perfectly - that. too will be up for grabs.

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Rjspestcontrol

As soon as i get my new kit from Ron, I can part with my old gauges as well.  

 

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Eagleboy99

FYI for anyone interested, these kits are selling like hotcakes according to TRD and there is now a waiting list for them.  There is even some poor sod in line whose touchscreen exploded that is looking for an "old skool" replacement rather than fork out the thousands for a new touch screen.  I'd be curious to see how that works out, what with all the stuff built into the LCD panels.

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Rjspestcontrol

I just installed my kit from Ron, and it was super easy.  I have a speedometer and tachometer that work. 5 inch gauges  black with white writing.  The tach has the small lcd screen for engine hours.  I have the 4 in 1 gauge also, but i think the stepper motor for the fuel gauge is bad.  They had after market gauge installed for fuel when i bought the boat.  All these gauges for sale.   

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Bozboat
11 minutes ago, Rjspestcontrol said:

I just installed my kit from Ron, and it was super easy.  I have a speedometer and tachometer that work. 5 inch gauges  black with white writing.  The tach has the small lcd screen for engine hours.  I have the 4 in 1 gauge also, but i think the stepper motor for the fuel gauge is bad.  They had after market gauge installed for fuel when i bought the boat.  All these gauges for sale.   

can you post a picture of the new dash?

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Rjspestcontrol
On 6/3/2019 at 10:41 PM, cla10beck said:

I am looking for either a 5” tach or speedo, so if @DRH or @vwztips doesn’t want one of those, I’m interested 

I have a tach and speedo that works great if you are interested.

 

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Rjspestcontrol

new clock is 80 bucks.  was thinking maybe just a couple blank plastics.  

 

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Rjspestcontrol

i can do depth finder and clock for 250. haha. the wife would love that.  

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Rjspestcontrol
On 6/3/2019 at 10:41 PM, cla10beck said:

I am looking for either a 5” tach or speedo, so if @DRH or @vwztips doesn’t want one of those, I’m interested 

are you still interested in tach or speedo or both?   Or i am going to put on ebay if i can figure it out. haha

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