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Old 10-20-2009, 09:59 AM   #1 (permalink)
Torque454
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Fuel Filter Heater

How important is the fuel heater that is inside the fuel filter housing? I think mine is dead, an ohm meter on the highest scale reads infinity across the connector. Its probably been dead forever and hasn't ever been a problem and as expensive as it is, i'm tempted to forget about it.
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Old 10-20-2009, 01:39 PM   #2 (permalink)
deejaaa
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..............

Quote:
Originally Posted by Torque454 View Post
How important is the fuel heater that is inside the fuel filter housing? ........
most people leave it off and install an aftermarket filter. mine isn't working either. heard that in extreme lows it comes in handy w/ fuel gelling but i don't have those here.
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Old 10-20-2009, 01:44 PM   #3 (permalink)
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If you just found that its bad, it probably has been bad for a while and hasn't hurt anything.... So you could probably just let it go, I'm not sure if mine is working either... don't care to find out atm either lol.
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Old 10-20-2009, 02:38 PM   #4 (permalink)
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mine was blowing a fuse. disconnected. n o problems..
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Old 10-20-2009, 03:09 PM   #5 (permalink)
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By "infinity", do you mean dead short or open circuit. The heater would have lots of resistance and show damn near a dead short if it's good. You can pull the heater out of the housing and put 12 volts to it and see if it warms up.
If you decide you need a heater, check out my parts add. I have 2 of them for sale, both with good heaters.
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Old 10-20-2009, 06:34 PM   #6 (permalink)
Torque454
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Quote:
Originally Posted by TedReminder View Post
By "infinity", do you mean dead short or open circuit. The heater would have lots of resistance and show damn near a dead short if it's good. You can pull the heater out of the housing and put 12 volts to it and see if it warms up.
If you decide you need a heater, check out my parts add. I have 2 of them for sale, both with good heaters.
Ted
The digital multimeter read "1" on the far left when connected to the fuel heater, which is the same reading it gets when it is not connected to anything at all. When you touch the leads together or touch it between two points that are continuous between each other, it will read the resistance on the far right side, and if there is no resistance at all it will read three zeros. Which is what you get if you touch to leads of the DMM together. I read the "1" on the far left as infinite, or non continuous (dead/shorted). Someone correct me if i am wrong...
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Fuel Filter Heater-fuel-htr.jpg   Fuel Filter Heater-fuel-htr2.jpg  
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All stock except the gutted catalytic converter and home made turbo master.

1987 Ford F-150 5.0L Speed Density EFI/AOD - 5.8L Mass Air Flow EFI conversion in progress.

1980 Volvo 265 GLE with 4.3 Chevy V6 and 700r4 Transmission

1974 Ford Pinto with 91 Mustang 2.3 MAF EFI DIS engine and stock 4 speed transmission

Last edited by Torque454; 10-20-2009 at 06:43 PM.
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Old 10-20-2009, 06:57 PM   #7 (permalink)
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I would call that a dead, open circuit. Like a burned out light bulb.
That heater is toast. Both of mine read like your 3 zeros, except I have an old fashioned meter with a swinging needle.
Ted
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