Car overheats

30

Asked by Nov 15, 2016 at 11:39 PM about the 2005 Chevrolet Impala LS

Question type: Maintenance & Repair

Car gets between c and h and overheats 05 impala

8 Answers

79,265

You may have air in the cooling system. Since you have the LS model you have the 3.8L V6 (3800 Series II). There's a bleeder screw on top of the thermostat housing. With the engine cold, open this bleeder screw and add coolant to the radiator until a steady stream of coolant comes out of the bleeder screw. Then close the bleeder screw and make sure the radiator is full to the very top. Replace the radiator cap. Fill the plastic recovery tank to the full line and you should be all set. It's helpful to have the front of the car angled upwards. Like halfway in the driveway, for example. The 3.8 rarely, if ever, will blow a head gasket. Intake manifold gasket failure is common though between 90,000 and 120,000 miles. HTH. -Jim

30

Could it be the radiator neither one of the fans work

1 people found this helpful.
110,575

The c is probably for cold and the h is for hot. The needle should be about half way between the two. Are you sure it is overheating?

1 people found this helpful.
30

It's halfway then shuts off within the next mile

1 people found this helpful.
30

Thought it was the thermostat but I replaced it same thing happened

110,575

Why do you think the car shutting off has something to do with the temp gauge? Is the car boiling over?

1 people found this helpful.
30

It's not reaching H it's shuts off in the middle it cranks but no start then once the car cools it cranks right up

1 people found this helpful.
79,265

Sounds like a failing ignition control module. HTH. -Jim

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