2nd Gen Non-Engine/Transmission Block heater : should I be hearing noise

[Dodoro]

I just noticed a weird noise coming from the passenger side of my truck / engine. Sounds like ( air / or / a coffee pot) thats been plugged in too long.

Block heater is plugged in and working. Has been since 2:30 pm



I now have 184,000 miles and i've never heard it before. Do I need to check or replace the block heater?

 

[RDyson]

You will hear that noise when it starts to heat the water just around the element. No problems.



Randy

 

[Stark_Ent9802]

i would 2nd rdyson.

 

[Fordiesel69]

Perfectly normal, all my fords did this as well.

 

[jhoughton]

Mine has done that since new. Nothing to be worried about.

 

[rbattelle]

Mine did it since new, then stopped this year mysteriously. Unit checks out okay - it just stopped making noise. Very weird.

For peace of mind, check the resistance across the heater. Should be roughly 18 - 20 ohm.

Ryan

 

[Grizzly]

My block heater also makes a little noise. It's normal.

 

[Dodoro]

Ok THANKS. I was beginning to to get worried. I am going to check the resistance anways. Thanks again guys.