fuel temp sensor
#1
05-13-2010, 02:03 PM
Join Date: Jan 2007
Location: north alabama
Posts: 1,200
fuel temp sensor
had yellow light come on dash (engine warning) found out it is fuel temp sensor. is it important to replace asap ? what affect will it have if not replaced. hope to finish my loads for the week. so far I have not noticed any difference in engine performance. also can I just replace myself or does it need to have anything reprogrammed into the ecm? called freightliner dealer. can order part & have in a day.
#2
05-13-2010, 02:20 PM
Join Date: Jan 2007
Location: north alabama
Posts: 1,200
had yellow light come on dash (engine warning) found out it is fuel temp sensor. is it important to replace asap ? what affect will it have if not replaced. hope to finish my loads for the week. so far I have not noticed any difference in engine performance. also can I just replace myself or does it need to have anything reprogrammed into the ecm? called freightliner dealer. can order part & have in a day.
#3
05-14-2010, 10:17 AM
It may affect fuel mileage. Check for a 2-wire sensor at the fuel filter header. Key switch off, you just thread it out and thread new one back in; if it was the problem, the light should go out when you key back on. Engine may start hard after if you lose too much fuel ( have the new one ready to plug the hole ).
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Bob H
#4
05-14-2010, 11:17 PM
Join Date: Jan 2007
Location: north alabama
Posts: 1,200
got the new sensor. dealer had in stock. location of sensor is on back of fuel pump. will change today. sat. I dont have the typical fule filters, so I am not sure about any fuel filter header. I have the davco sys.
thanks for the reply.
#5
05-17-2010, 08:11 AM
Join Date: Jan 2007
Location: north alabama
Posts: 1,200
That was one of the easiest fixes. 3/4 wrench. dripped about a tbls of diesel out & then stopped, screwed new sensor in.
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