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-   -   temp sensor sender 4000q.which is which (https://www.audiworld.com/forums/audi-4000-coupe-gt-discussion-29/temp-sensor-sender-4000q-2857805/)

jocar 12-02-2013 01:23 PM

temp sensor sender 4000q.which is which
 
I believe both sensors on the right side of the block on the cooling hose/thermostat housing send one signal to the computer and one to the guage. My guage reads too hot or cold sometimes after up to temp for years(I know) and believe the sensor is messed up because the fan goes on and off as it should. Which one do I replace, upper or lower and what is it called on a parts site? thank you.

flagreen 12-02-2013 01:26 PM


Originally Posted by jocar (Post 24515025)
I believe both sensors on the right side of the block on the cooling hose/thermostat housing send one signal to the computer and one to the guage. My guage reads too hot or cold sometimes after up to temp for years(I know) and believe the sensor is messed up because the fan goes on and off as it should. Which one do I replace, upper or lower and what is it called on a parts site? thank you.

The top one is for the guage. Tell me what model, year and engine you have and I'll give you the part number.

jocar 12-04-2013 10:23 AM


Originally Posted by flagreen (Post 24515027)
The top one is for the guage. Tell me what model, year and engine you have and I'll give you the part number.

1984 4000q , just went on ebay today. Thank you.

flagreen 12-04-2013 12:22 PM


Originally Posted by jocar (Post 24515729)
1984 4000q , just went on ebay today. Thank you.

The part number is 049919501B. Sorry to see you're selling it! :-)

jocar 12-06-2013 09:44 AM

thanks for the help!


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