[JoMc67]

Ok, got the Coolant Flush done at my local mechanic using my provided Zerex G05...I have a 180 degree T-Stat that usually reads right in middle between 130 and 210 (so, 180), but it now seems to run cold at around 165 or so (one full needle past 130).
What could cause this issue ?, maybe T-Stat is stuck open. Going to visit the mechanic again next week to see what what happens.

Thanx for any info,
Joe

 

[immattj]

Maybe it's something as simple as your system is running more efficiently after the flush?
It appears as if the OEM 'stat was 195 degrees, so maybe Mopar did that for a reason.

2001 DODGE DAKOTA 4.7L V8 Thermostat | RockAuto

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Looking on the positive side, if it were me, I'd rather it was running cool after the flush than hot, but maybe go ahead & put the OEM 'stat in it & see what happens. Every 5 years I do a flush & change the 'sat, rad cap. & s-belt on general principle.

 

[JoMc67]

Maybe it's something as simple as your system is running more efficiently after the flush?
It appears as if the OEM 'stat was 195 degrees, so maybe Mopar did that for a reason.

2001 DODGE DAKOTA 4.7L V8 Thermostat | RockAuto

RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. Easy to use parts catalog.

www.rockauto.com

Looking on the positive side, if it were me, I'd rather it was running cool after the flush than hot, but maybe go ahead & put the OEM 'stat in it & see what happens. Every 5 years I do a flush & change the 'sat, rad cap. & s-belt on general principle.

Yes, and thinking the same in that the system is running more efficient.
I did replace the original factory 195 T-Stat with a 180 many years ago w/o issues, thou I may consider replacing back to 195 (along with OEM Rad Cap) to see if it makes any difference.

 

[nwrensch]

Yes, and thinking the same in that the system is running more efficient.
I did replace the original factory 195 T-Stat with a 180 many years ago w/o issues, thou I may consider replacing back to 195 (along with OEM Rad Cap) to see if it makes any difference.

A 180° and running 165° is much too cool your computer doesn't go into closed loop until 160° and there is another good reason to run 195° the hotter temperatures will help evaporate the condensation and acids out of the oil there for extending your engine life. Between the hotter engine temperatures and fuel injection are a couple of the main reasons the engines will run 200-300,000 miles these days.

 

[lssparky61]

Ok, got the Coolant Flush done at my local mechanic using my provided Zerex G05...I have a 180 degree T-Stat that usually reads right in middle between 130 and 210 (so, 180), but it now seems to run cold at around 165 or so (one full needle past 130).
What could cause this issue ?, maybe T-Stat is stuck open. Going to visit the mechanic again next week to see what what happens.

Thanx for any info,
Joe

If your engine runs too cool it will probably run too rich because it thinks your engine hasn't reached full running temperature, which it really hasn't.