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Old 02-09-2004, 11:40 PM   #1
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Default Fluctuating temp gauge?

So I popped the hood the other day...Look in my coolant resivoir and its empty! First thing I think...DAMN PLASTIC INTAKE! I was relieved to find that the loss of coolent was, I hope, the thermostat housing. So I bought new gaskets and put the 180 t-stat back in(I put the 195 in it a couple months ago). Now the temp gauge constantly fluctuates between about 165 and 185...Up and down, up and down....Hmm, any Ideas?
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Old 02-09-2004, 11:49 PM   #2
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Has your upper intake ever failed before?
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Old 02-10-2004, 02:03 PM   #3
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mine does a lot of fluctuation with the 195 in it. I find what works is if you tap on top of where the temp gage is with your fingers, mine usually goes back to were it should be!
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Old 02-10-2004, 02:21 PM   #4
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Does it go consistently up and down at the same time interval?
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Old 02-10-2004, 03:45 PM   #5
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Default Re: Fluctuating temp gauge?

Quote:
Originally Posted by randallons
So I popped the hood the other day...Look in my coolant resivoir and its empty! First thing I think...DAMN PLASTIC INTAKE! I was relieved to find that the loss of coolent was, I hope, the thermostat housing. So I bought new gaskets and put the 180 t-stat back in(I put the 195 in it a couple months ago). Now the temp gauge constantly fluctuates between about 165 and 185...Up and down, up and down....Hmm, any Ideas?
my car was doing the exact same thing. i put the 195 back in for winter. the 180 just does not get it for cold weather.
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Old 02-10-2004, 06:52 PM   #6
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Quote:
Originally Posted by bonnie94sse
Has your upper intake ever failed before?
No.
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Old 02-10-2004, 06:53 PM   #7
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Quote:
Originally Posted by fuddyduddy121
Does it go consistently up and down at the same time interval?
Yes, from what I observed. It goes down, then about 5 seconds later it goes up, and 5 secpnds later it goes back down.
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Old 02-10-2004, 06:54 PM   #8
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When I had that problem with my 89, it was a bad themostat. Once I replaced the thermostat, the needle stayed in the same place.
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Old 02-11-2004, 11:46 AM   #9
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Well I figured since I'm changing the gaskets anyway, I might as well put the 180 back in.
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Old 02-23-2004, 10:24 AM   #10
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Well I changed the thermostat and it'* still fluctuating. Basically replaced a stant 180 with another one. It floats between about 195 and the next bar to the left of 195, back and forth. Could this be a result of a leak in the system? see http://www.bonnevilleclub.com/forum/...ic.php?t=14515
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