2005 Tahoe will not get to operating temp in cold weather.

25

Asked by Dec 29, 2015 at 07:41 PM about the 2005 Chevrolet Tahoe LT 4WD

Question type: Maintenance & Repair

Last winter I hit a deer and radiator tranny cooler and basically all new front
end was replaced. Ever since the operating temp will not get above 180
degrees in the winter.

6 Answers

52,065

Need to make sure there is a 195 deg. thermostat in her.

2 out of 2 people think this is helpful.
25

Thanks for the quick reply. 4 different shops have worked on this issue but have not fixed the problem. Thermostat is brand new as well as the housing. Summertime the Tahoe will run at 210 only winter time the temp drops.

1 out of 1 people think this is helpful.
20,245

ALSO...IS THE FAN/S TURNING OFF AT SET TEMP...

2 out of 2 people think this is helpful.
Best Answer
61,335

Definitely sounds like a bad/wrong thermostat. If you have an older mechanic he may be installing a 180°F thermostat by mistake. That was standard across the board at GM. But computer controlled engines, like your Tahoe, require a 195°F thermostat. HTH. -Jim

1 out of 1 people think this is helpful.
25

Thanks for the answers. I've had 4 different shops try all the things you suggested. This problem is only in the winter. Summer the operating temp stays 210 when warmed up. Even at 30 above the temp is 180. Only when idling did it reach 210 but when I started driving the temp dropped.

1 out of 1 people think this is helpful.
61,335

One other possibility comes to mind. If there's a bypass valve incorporated in the thermostat housing it may be stuck open. Check for proper installation of the heater hoses as well. Somewhere coolant is sneaking past the thermostat. HTH. -Jim

Your Answer

Add photo

Related Questions

Tahoe

Looking for a Used Tahoe in your area?

CarGurus has 28,448 nationwide Tahoe listings starting at $1,500.

ZIP:

Search Chevrolet Tahoe Questions

Chevrolet Tahoe Experts

#1 FordNut
FordNut
Reputation 810
#2 Tom Demyan
Tom Demyan
Reputation 720
#3 Rowefast
Rowefast
Reputation 650
View All

Related Models For Sale

Used GMC Yukon
520 Great Deals out of 17,125 listings starting at $1,799
Used Chevrolet Suburban
464 Great Deals out of 18,776 listings starting at $1,399
Used Cadillac Escalade
308 Great Deals out of 10,692 listings starting at $1,900
Used Chevrolet Silverado 1500
2,298 Great Deals out of 155,159 listings starting at $1,395
Used Ford Expedition
420 Great Deals out of 24,712 listings starting at $1,999
Used Ford Explorer
939 Great Deals out of 73,806 listings starting at $750
Used Ford F-150
2,702 Great Deals out of 211,804 listings starting at $1,000
Used Dodge Durango
301 Great Deals out of 24,111 listings starting at $1,500
Used Toyota 4Runner
319 Great Deals out of 20,550 listings starting at $2,295
Used Jeep Grand Cherokee
846 Great Deals out of 68,675 listings starting at $864
Used GMC Yukon XL
360 Great Deals out of 12,481 listings starting at $1,995
Used GMC Sierra 1500
941 Great Deals out of 62,271 listings starting at $1,395
Used Dodge Charger
357 Great Deals out of 29,619 listings starting at $2,475

Used Cars For Sale

2017 Chevrolet Tahoe LT 4WD For Sale
2,266 listings starting at $45,791
2016 Chevrolet Tahoe LT 4WD For Sale
26 Great Deals out of 967 listings starting at $36,995
2015 Chevrolet Tahoe LT 4WD For Sale
17 Great Deals out of 686 listings starting at $32,450
2014 Chevrolet Tahoe LT 4WD For Sale
18 Great Deals out of 228 listings starting at $16,995
2013 Chevrolet Tahoe LT 4WD For Sale
19 Great Deals out of 577 listings starting at $14,000