LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

coolant smell in cabin

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Old 04-02-2005, 04:19 PM
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coolant smell in cabin

Few weeks ago my low coolant light came on, in the past it was the sensor acting up, and would go off by itself.... and this time too it went off in a couple days, but i did add some coolant just in case and spilled some. So the next few days i began smelling coolant more and more inside and i saw some dripping from under the fill tank. thinking its my spill i didnt do anything. Well 2 weeks now and its still dripping and when i put on heat lots of fumes come out that smell VERY strongly of coolant.. any ideas? also, my heater fuse blows all the time (but this was happening for over a year now)

Thanks for any suggestions or advice!
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Old 04-02-2005, 04:51 PM
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Re: coolant smell in cabin

Did you check to see how your heater core is? Is the carpet wet on the side with the heater core?
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Old 04-02-2005, 05:03 PM
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Re: coolant smell in cabin

Heater core is probably leaking. PIA to change. Good Luck.
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Old 04-03-2005, 11:10 AM
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Re: coolant smell in cabin

I didnt see any wetness on the passanger carpet, but that makes sense.... especially since i get the fumes when i put on the heat.... anyone have an estimate of how much this will hit my wallet? Dont want to go in blindly to a mechanic...
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Old 04-03-2005, 11:41 AM
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Re: coolant smell in cabin

$100.00 core and 3 to 5 hours at local shop rate. You do the math. Here labor is 100 to 125 per hour.
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Old 04-03-2005, 12:59 PM
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Re: coolant smell in cabin

it is simply, parts store where i got my heater core was approx. 40.00, get a cheap manual at the store also to run you through it . the only pain in the *** is taking the hoses off from the engine bay by the fire wall.
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Old 04-03-2005, 02:26 PM
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Re: coolant smell in cabin

Yup sounds like your heater core. I bought one from a fellow member for 40.00 shipped brand new. I put in myself, its not that hard. Just have some patience and wiggle it in their and you'll be ok
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Old 04-03-2005, 02:37 PM
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Re: coolant smell in cabin

yeah, this is a fairly simple project IMO. the heater core sits behind the glove box. once you get to it (by removing a few plastic covers), the only semi-difficult thing to do is get the heater hoses off of the core. which i dont think was really that hard at all. save yourself some money. or if anything, invest the money a shop would charge you into some tools instead.

EDIT: an easy way to get behind the glovebox is to open it, then push in on the sides until the little flaps clear the dash. then it will fall down out of the way.
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