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Using the GUEST spotlight makes my engine temp read hot
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Author:  powermaker [ Mon Oct 25, 2010 8:57 am ]
Post subject:  Using the GUEST spotlight makes my engine temp read hot

Whenever I turn on my spotlight my engine temp gauge quickly climbs into the red zone and the high temp alarm sounds . Also my oil pressure gauge rises into the red zone . I checked the temperature of my altenator with temp gun and it was reading 215 degrees F . This seemed way too hot to me . What do you guys think , voltage regulator ? I'm open to suggestions . thanks , keith .

Author:  M3eater [ Mon Oct 25, 2010 9:57 am ]
Post subject:  Re: Using the GUEST spotlight makes my engine temp read hot

Well, there's no way that the electrical draw of the spot light is specifically causing the engine temp and oil pressure to change. Therefore, it's likely that you have a poor ground for the gauges. this is very common, by the way. Perhaps some of the other guys can give you specific ground point to look at.

Author:  powermaker [ Mon Nov 01, 2010 9:09 am ]
Post subject:  Re: Using the GUEST spotlight makes my engine temp read hot

Thanks , would this ground be located behind the instrument panel ?

Author:  Paul I. [ Fri Jan 28, 2011 12:54 pm ]
Post subject:  Re: Using the GUEST spotlight makes my engine temp read hot

I know this post is old!!! But what did you find that was causing the temp to rise???

Thanks
Paul

Author:  Cap'n Morgan [ Fri Jan 28, 2011 1:15 pm ]
Post subject:  Re: Using the GUEST spotlight makes my engine temp read hot

If I remember, he tried to hook up a Lowrance EP-65R Fluid Level Sensor , and it caused his gauge to malfunction when the spotlight turned on.

Author:  millhaven_nice_guy [ Fri Jan 28, 2011 1:31 pm ]
Post subject:  Re: Using the GUEST spotlight makes my engine temp read hot

Cap'n ..... You're going to get yourself a time out :wink:

Author:  powermaker [ Thu Jun 02, 2011 3:45 pm ]
Post subject:  Re: Using the GUEST spotlight makes my engine temp read hot

Paul I. wrote:
I know this post is old!!! But what did you find that was causing the temp to rise???

Thanks
Paul

It was a bad grounding system on my gauges . I have since replaced my VDO gauges with Faria gauges . 1000 bucks :cry:

Author:  aguyindallas [ Thu Jun 02, 2011 3:47 pm ]
Post subject:  Re: Using the GUEST spotlight makes my engine temp read hot

powermaker wrote:
Paul I. wrote:
I know this post is old!!! But what did you find that was causing the temp to rise???

Thanks
Paul

It was a bad grounding system on my gauges . I have since replaced my VDO gauges with Faria gauges . 1000 bucks :cry:



Yeah, but at least your engine doesnt overheat when you turn on the spotlight :mrgreen:

Author:  Swarrior12 [ Thu Oct 13, 2011 10:00 pm ]
Post subject:  Re: Using the GUEST spotlight makes my engine temp read hot

Seahorse,

Do you have any pics of your Faria gauges...I have a 98 245 and have the same problem with the temp and oil gauges rising when I turn on my spot light as well. I had been thinking of changing out my VDO for gauges as well. would love to see how it turned out. What did you use for your instrument gauge backing/Mounting plate?

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