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Temp Light Flashing Please help

Dave1971

By Dave1971
in 981 Series (Boxster, Boxster S)

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Dave1971 Member

Dave1971

Posted
Posted

Yesterday I had my coolant expansion tank replace, after driving it away from the shop the temp light began blinking slowly (which usually indicates low coolant or engine compartment fan faulty) I checked the coolant level and it was fine, today I ran the car and let it sit running for a while and never heard the familiar noise of the engine fan coming on, what could have happend to the car during the installation to have this problem? I would like to have something to say to the mechanic when I bring the car back. Thank you for any insight on this problem.

 

2002 Boxster S Manual Tranny

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JFP in PA Member

JFP in PA

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Posted

Yesterday I had my coolant expansion tank replace, after driving it away from the shop the temp light began blinking slowly (which usually indicates low coolant or engine compartment fan faulty) I checked the coolant level and it was fine, today I ran the car and let it sit running for a while and never heard the familiar noise of the engine fan coming on, what could have happend to the car during the installation to have this problem? I would like to have something to say to the mechanic when I bring the car back. Thank you for any insight on this problem.

 

2002 Boxster S Manual Tranny

 

Four functions of the coolant warning light:

1. Engine coolant level too low

— light flashes slowly (0.5 Hz)

2. Engine compartment temperature too high

— light flashes slowly (0.5 Hz) (engine compartment blower might be faulty)

3. Engine coolant temperature too high

— light is lit; pointer on the right

4. Temperature sensor at water outlet faulty

— light flashes rapidly (1 Hz); pointer on the right

Note

The temperature warning in point three is indicated if the conditions "engine coolant temperature too high" and "engine coolant level too low" are present simultaneously 

(1Hz = 1 flash per second.  0.5Hz = 2 seconds per flash)

 

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