Proper Coolant Temp?

Proper Coolant Temp?

Postby jrfiero [OP] » March 24th 2014, 1:42pm

I searched! Really. I saw one reference asking if these vans use a 195 degree tstat -

I just bought a 2003 Astro SLT and it seems to run a little cool, midway between the numbers on the gauge, and the heat isn't what I would expect. I will get a manual but don't have one yet (where is a good source?)

So, what is the temp supposed to be? Is a 195 tstat correct?

Thanks,
Jonas
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Re: Proper Coolant Temp?

Postby BigWheelinBubba » March 24th 2014, 6:59pm

It should run anywhere between 190-220 on average.
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Re: Proper Coolant Temp?

Postby Philly758 » March 24th 2014, 8:42pm

My scangauge usually reads 197 on warmup until the thermostat opens then it drops down to about 188 on average (at least that is what it has been all winter, if that makes a difference).
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Re: Proper Coolant Temp?

Postby Mmusicman » March 24th 2014, 9:59pm

195 is correct
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Re: Proper Coolant Temp?

Postby WoodButcher » March 25th 2014, 12:48am

195 is the thermostat according to hoyle. I got my van at 125,000 mi and until I changed the thermostat it ran cool if the dash gauge were to be believed about 150 -160. Around 150,000 I the water pump went so I put in a 185 because it always ran good but not 195 deg. Like Philly I use an Ultraguage and have similar temps, she runs around 188 - 192 all year long and I've got over 275,000 miles on her now.
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Re: Proper Coolant Temp?

Postby c.zhou57 » March 28th 2014, 6:54am

Grab a scan tool to verify the reading if your car is OBD2. The dash gauges are not too accurate.

I thought my van was running too cool, and the dash was showing somewhere between the two numbers just like you... somewhere around 180 instead of 195. I put in 2 different thermostats without any change. Finally picked up a cheap bluetooth scan tool and saw that my temps were constantly at 194-197 range the whole time.
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Re: Proper Coolant Temp?

Postby Clevis » March 30th 2014, 5:13pm

Agreed, I just looked at my scantool reading and it's hotter than the gauge
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Re: Proper Coolant Temp?

Postby RECox286 » March 30th 2014, 11:11pm

Only trust the dash gage when it is SCREAMING at you. Otherwise, it's good to go (usually).

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