Thermostat 195?

Mango · Jan 16, 2024

1989 350, What temp stat are you using? I have a 195 and this morning it did not open, Engine temp past 210/ Less than a year old, It was also 17 below zero!

Goldie Driver · Jan 16, 2024

Motor Rad ? Failsafe 195 - made in Israel. Makes the heater work mo betta.

Got it from Devanced Auto - failsafe as in it is supposed to fail open if it fails.

fast 99 · Jan 16, 2024

Have has a lot of issues with cheaper line thermostats, usually lasting a year like yours did. Haven't had problems with the more expensive lines at NAPA. Would think AC Delco, Delphi and GM would also be decent but no experience with them.

gmbellew · Jan 16, 2024

195 is recommended. did temp keep climbing? my dash gauge shows a lot warmer than the CTS for the computer, especially for the first T-stat open of the day.

SquareRoot · Jan 16, 2024

Your "assuming" your gauge is accurate?

Mango · Jan 16, 2024

@SquareRoot Guage has been staying below 210 or drops down at 210. I have noticed recently it climb above 210 a little before it dropes down. Today it was quite high shut down when i got to work check the upper Rad hose it was cold?
@gmbellew the temp did not seem to keep climbing but its only eight miles to work

gmbellew · Jan 16, 2024

Mango said:
@SquareRoot Guage has been staying below 210 or drops down at 210. I have noticed recently it climb above 210 a little before it dropes down. Today it was quite high shut down when i got to work check the upper Rad hose it was cold?
@gmbellew the temp did not seem to keep climbing but its only eight miles to work

my dash gauge shows about 230 (measured in head) when the ECM reports about 208-210 at the CTS (by thermostat housing). my 195 deg seems to fully open at about that temp. and then drops and holds 195 pretty well at CTS and the dash gauge reads a lot colder than 195.

emoze · Jan 22, 2024

just change it & get on with life; i've seen several new 'stats fail too soon in several cars , esp fromaftermarket brands .... buy the best known brand you can find

peats · Jan 22, 2024

A point and shoot thermometer would take a lot of the guesswork out of this problem

Long Rider · Jan 23, 2024

I had my truck overheat on a short road trip so I stopped and ran into a small town parts store and bought a new one. I bought the cheapest one they had, I know brain dead right? It lasted for one month and one day when it started running hotter but not into the red. I bought an AC Deco and it's been in there now for a couple months and from what I hear they should last for years. Spend the money.

Thermostat 195?

Mango

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Goldie Driver

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fast 99

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gmbellew

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SquareRoot

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Mango

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gmbellew

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emoze

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peats

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Long Rider

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