Block Heater Question
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Mountain Pass
Joined: Oct 2007
Posts: 153
Likes: 0
Block Heater Question
I dont think my block heater isn't working anymore. my 7.3 doesnt like to start around -20 Celsius and colder and i am using 5w40 syn. i crawled under the truck and felt the block heater on the block and it is cold. I was wondering when i change it, will oil pour out or oil? and how much will i loose? 2001 F350 7.3LTR
Infidel
Joined: Aug 2003
Posts: 1,115
Likes: 2
From: Elkhorn WI
I thought the original block heaters for our truck heated near the oil filter/OIL....really never cared to know since it always worked lol
Sounds to me like the cord might be bad...they are prone to rub threw near the frame in spots. Get another cord before replacing the entire heating element
or better yet test the cord and heater before replacing with an ohm meter
Good luck!
Sounds to me like the cord might be bad...they are prone to rub threw near the frame in spots. Get another cord before replacing the entire heating element
or better yet test the cord and heater before replacing with an ohm meter
Good luck!
Posting Guru
Joined: Sep 2006
Posts: 1,081
Likes: 1
From: Montana
Ohm it out first to make sure its the Cord or the block heater it self. check the cord first plugged in. you should get around 15 or so Ohm's. if you dont' then take the cord OFF, and Ohm the little pins on the block heater. its kind of hard so if you have a friend to hold the MM for you. cause its kind of hard by your self. it can be done, but hard, (ask me how I know lol)
I would think its just the cord, cause I JUST replaced mine now it works like a charm.
Good luck
I would think its just the cord, cause I JUST replaced mine now it works like a charm.
Good luck
Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
The block heater is in the block and you lose most of your coolant changing them.
It heats the water/coolant not the oil.
You can feel a rad hose and tell if its working or not , plus most times you can hear them sizzling when you first plug it in.
It heats the water/coolant not the oil.
You can feel a rad hose and tell if its working or not , plus most times you can hear them sizzling when you first plug it in.
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Infidel
Joined: Aug 2003
Posts: 1,115
Likes: 2
From: Elkhorn WI
Thanks Vinford for clearing dat up for me....it never really set in my brain to even think that, even when I used to changed em out all the time on some L10 and M11 Cummins....<whoosh right over my head>
MTDewX were did you get your new cord? mines been on there for 8 years and just feel like chaning it cuz it prolly need it. Thanks
MTDewX were did you get your new cord? mines been on there for 8 years and just feel like chaning it cuz it prolly need it. Thanks
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Posting Guru
Joined: Sep 2006
Posts: 1,081
Likes: 1
From: Montana
I got it at at local shop that does my Big projects on the truck that I can't do.
was like $17 not from the dealer. Dealer wanted $80, but I think he was giving me the kit that included Both Heater and cord cause they are separat.
took me longer to route it cause I was cold when I did it. I actually just ran it to hang above the head light. just tuck it in when I am not using it. I will re-route it when it warms up.
if you can't find one, I can see if I Can get another if you are willing to pay for it and shipping.
but I would also TEST first to narrow it down. but my $ is on the cord
was like $17 not from the dealer. Dealer wanted $80, but I think he was giving me the kit that included Both Heater and cord cause they are separat.
took me longer to route it cause I was cold when I did it. I actually just ran it to hang above the head light. just tuck it in when I am not using it. I will re-route it when it warms up.
if you can't find one, I can see if I Can get another if you are willing to pay for it and shipping.
but I would also TEST first to narrow it down. but my $ is on the cord
Senior User
Joined: Mar 2005
Posts: 152
Likes: 1
From: Darrington, WA
I need to replace my cord also, the last time I used it a fire ball shot out from the heater/wheel well area. I noticed a hole in my cord also. I am hoping it's just the cord. I'd like to test the heater, how many ohms would there be on it and are there just 2 pins you touch to? Take a look at my gallery I have pics of my cord in there. I could sure use it now, truck started just fine at 17* but yesterday it was 2* and it didn't like starting at that temp.
Fleet Mechanic
Joined: Sep 2006
Posts: 1,329
Likes: 0
From: IN
Yes it actually stays good and dry. And the back has a rubber boot to keep the elements out from the back.