My 04 impala is blowing cold air but is nearly over heating

Asked by Jul 05, 2015 at 05:51 PM about the 2004 Chevrolet Impala Base

Question type: Maintenance & Repair

When at idle the temp rises but
drops when I start driving again and
won't blow heat

5 Answers

17,660

Are the fans coming on ?

17,660

When you turn on your A.C the two fans should automatically come on.

The fans are coming on

17,660

Since you say the temp drops when driving sounds like your radiator is partially clogged with dirt and bugs that's why drops when driving its forcing air through the radiator fins so what you need to do is clean out radiator fins with a garden hose and nozzle or better yet a pressure washer this will let you get better air flow across the radiator and A.C condenser coils.

17,660

I would also do a Super Radiator Flush.

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