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mike hammer
User

Feb 5, 2009, 12:05 PM

Post #1 of 3 (2152 views)
block heater Sign In

hello my 93 plymouth acclaim ( 4 cylinder) would not start because of what I believed to be frozen fuel lines. I have plugged in the block heater which has raised the temperature under the hood to a point which i believe lines would thaw After about 24 hours of being plugged in i checked under the hood to see if it was a little warmer Which it was but i also noticed a slight noise from the engine. It was a cross between a hum and a very low hissing. As this is the first time I have plugged in the block heater I have no idea if this accesory is supposed to be silent or if a slight humm\hiss hybrid is normal for this accessory. Any info would help thanks . PS the car is at about 300 000 kilomerters and is not in great shape at the best of times.


Loren Champlain Sr
Veteran / Moderator
Loren Champlain Sr profile image

Feb 5, 2009, 3:12 PM

Post #2 of 3 (2150 views)
Re: block heater Sign In

If it is the type of heater that is installed in a heater hose, yes, you'll hear the noise as the motor is circulating the coolant. By listening carefully, you should be able to determine if the noise you hear is coming from the heater.
Loren
SW Washington


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Feb 5, 2009, 4:21 PM

Post #3 of 3 (2149 views)
Re: block heater Sign In

Mike - block heater won't do diddle for a frozen line - usually the lowest spot of the lines by frame rail if it really has enough moisture/water in line to freeze. You mentioned kilometers which suggests you aren't in the US. Much of the fuel in the US has alcohol in it which probably minimizes the freezing of water or may force it to catch in the fuel filter - not totally sure what the heck we are buyingCrazy

If you really buy gasoline w/o any alcohols AND haven't used anything to REMOVE moisture you really could have a water frozen gas line - used to happen here all the time. Additive (isopropyl alcohol 99%!) still won't melt it if it can't get at the spot until whole car is warmed up. Sadly - been there done that too many times and can take fans under car in a heated shop/garage if you are in a real deep freeze where you are. Good luck,

T







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