what is the min/max temp range for the thermostat on a 3.8 v6?

Asked by Jul 19, 2012 at 10:40 AM about the 2003 Chevrolet Monte Carlo SS

Question type: Maintenance & Repair

2003 MONTE SS eng code K. Eng seems to be running hotter that I was use to in my 2001 (same ENG).
BOOK CALLS FOR 195 THERMOSTAT I am considering a drop down to 185. Will this effect the ECM?  CAR
IS ALMOST 10 YEARS OLD WITH THE ORIGINAL STAT INST.

5 Answers

217,315

Stock is 195^, I'm only seeing a 180^ or 195^ as a replacement. If you live where you need heat in the car, I'd stick with the OEM 195^ stat. If you want to run cooler, try the 180^. Shouldn't really effect the ECM itself. What makes you think it runs too hot, by the guage? The interior dash guages are very inaccurate.

2 out of 2 people think this is helpful.

YES THE GAUGE IS READING UP TO THE 3/4 HASH MARK ON VERY HOT (100)DAYS, A/C RUNNING AND 70MPH DOWN INTERSTATE. I HAD MY 2001 IN FLORIDA AND DON'T RECALL THE GAUGE READING THIS HIGH EVER.

175

I'm pretty sure your low on coolant, check and fill your radiator and reserve tank. If you want better cooling i'd go with the 180* stat. That's what I'm going to have put in mine when I have a chance after my modded heater tube comes. No it won't throw an CEL light.

1 out of 1 people think this is helpful.
6,595

normal operating range is 195-205 typically. the desert might be hotter. TJ is right about checking the reserve tank and looking for leaks.

1 out of 1 people think this is helpful.

Thanks 205max temp

Your Answer

Add photo

Related Questions

Monte Carlo

Looking for a Used Monte Carlo in your area?

CarGurus has 1,684 nationwide Monte Carlo listings starting at $2,900.

ZIP:

Search Chevrolet Monte Carlo Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Chevrolet Monte Carlo Experts

#1 Tom Demyan
Tom Demyan
Reputation 450
#2 FordNut
FordNut
Reputation 420
#3 Js08016
Js08016
Reputation 410
View All

Related Models For Sale

Used Chevrolet Impala
933 Great Deals out of 35,377 listings starting at $1,700
Used Chevrolet Camaro
444 Great Deals out of 40,684 listings starting at $3,500
Used Ford Mustang
575 Great Deals out of 42,796 listings starting at $1,699
Used Pontiac Grand Prix
25 Great Deals out of 3,701 listings starting at $879
Used Chevrolet Malibu
1,185 Great Deals out of 82,906 listings starting at $1,800
Used Chevrolet Corvette
290 Great Deals out of 20,545 listings starting at $3,688
Used Chevrolet Tahoe
887 Great Deals out of 28,086 listings starting at $1,700
Used Chevrolet Silverado 1500
2,598 Great Deals out of 151,932 listings starting at $1,500
Used Buick Regal
148 Great Deals out of 11,704 listings starting at $1,450
Used Pontiac Firebird
17 Great Deals out of 776 listings starting at $2,495

Used Cars For Sale

2007 Chevrolet Monte Carlo SS For Sale
3 Great Deals out of 42 listings starting at $3,495
2006 Chevrolet Monte Carlo SS For Sale
4 Great Deals out of 66 listings starting at $4,995
2005 Chevrolet Monte Carlo SS For Sale
28 listings starting at $3,295