Low coolant

Asked by Mar 19, 2016 at 09:00 PM about the 2005 Chevrolet Silverado 2500 4 Dr Base Extended Cab LB

Question type: General

I just replaced the head gasket and water pump
and thermostat and I'm still getting a low coolant
light come on and I noticed that the temperature
isn't getting above 160 this is on a 05 duramax

4 Answers

12,115

With all the work done, did you burp the system to make sure all the air is out of the system? Are the sensor connections good? If you are around or under 160 degrees the warring lights should not be coming on. I'm sure you know that. So a sensor is bad, or the area the sensor is at is not getting the proper cooling flow. When you replaced the head gaskets, did you check to make sure all the water openings are not blocked by the new gaskets? Replacement head gaskets are universal on some gaskets, and may not have openings to all the water jacket holes. You may have more that a gas engine since it is a diesel engine. Ask whomever put the gaskets on if they checked to make sure all the openings were opened. It has happened more than once. I'd start with a new sensor first. faster and cheaper. Also make sure the connections are good.

1 out of 1 people think this is helpful.

They have burped it 2 times now. It might be more like 140. Call the owner of the shop and gonna have them go back over it all. Its sucks they have had my truck for over a month now.

Someone else told me they might have put the thermostats in wrong. Said that their different. Does that make any since. I dont know much but I know it's getting expensive.

12,115

Thermostats open to allow coolant past when the coolant gets hot against the thermostat. Put it in upside down and it acts as a blockage and you have serious overheating. Forget a thermostat or one that is stuck open, the water flows too fast to cool properly in the radiator. That may give a hot signal on the sensor. They should use a heat gun to find out where the hot spots are. Have the radiator hoses been changes over the 11 years of the cars life? Old and tired radiator hoses can expand or collapse slowing the flow of coolant, then pop open and send a rush for coolant through the system. That gives strange readings also.

Your Answer

Add photo

Related Questions

Silverado 2500

Looking for a Used Silverado 2500 in your area?

CarGurus has 327 nationwide Silverado 2500 listings starting at $3,995.

ZIP:

Search Chevrolet Silverado 2500 Questions

Chevrolet Silverado 2500 Experts

#1 juniosex
juniosex
Reputation 490
#2 tankwalk
tankwalk
Reputation 430
#3 km2002
km2002
Reputation 340
View All

Related Models For Sale

Used Chevrolet Silverado 2500HD
358 Great Deals out of 26,069 listings starting at $2,500
Used Chevrolet Silverado 1500
2,301 Great Deals out of 156,238 listings starting at $1,395
Used Dodge Ram 2500
168 Great Deals out of 5,533 listings starting at $2,500
Used GMC Sierra 2500
200 listings starting at $5,995
Used Ford F-250 Super Duty
427 Great Deals out of 45,049 listings starting at $2,000
Used GMC Sierra 2500HD
154 Great Deals out of 13,588 listings starting at $3,450
Used Ford F-150
2,876 Great Deals out of 212,656 listings starting at $1,000
Used Chevrolet Silverado 1500HD
22 Great Deals out of 307 listings starting at $3,950
Used GMC Sierra 1500
928 Great Deals out of 62,271 listings starting at $1,395
Used Chevrolet Silverado 3500
23 Great Deals out of 616 listings starting at $6,495
Used Dodge Ram 1500
535 Great Deals out of 12,998 listings starting at $2,199
Used Toyota Tundra
621 Great Deals out of 30,696 listings starting at $2,637

Used Cars For Sale

2004 Chevrolet Silverado 2500 For Sale
8 Great Deals out of 126 listings starting at $5,499
2003 Chevrolet Silverado 2500 For Sale
35 listings starting at $5,975
2002 Chevrolet Silverado 2500 For Sale
16 listings starting at $5,890
2001 Chevrolet Silverado 2500 For Sale
18 listings starting at $3,995
2000 Chevrolet Silverado 2500 For Sale
97 listings starting at $4,999