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Old March 6th, 2015, 05:11 PM
D110
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Hot Wax / Crayon Smell

Just recently our 1997 NAS 90 has started emitting the strong smell of hot wax/crayons from the engine bay after it has heated up - I've checked the exhaust to see if I had picked up a plastic bag or something, but can't see any signs of one. No obvious leaks, all the fluids are full. Anyone else ever encountered this? Any thoughts?
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  #2  
Old March 6th, 2015, 05:33 PM
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Battery cable over heating? Do you have a winch? If so, are the electric cables touching the exhaust somewhere?
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Old March 6th, 2015, 05:35 PM
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check to see one of your breather tubes isn't melting against something...
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Old March 6th, 2015, 05:35 PM
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Quote:
Originally Posted by D110 View Post
Just recently our 1997 NAS 90 has started emitting the strong smell of hot wax/crayons from the engine bay after it has heated up - I've checked the exhaust to see if I had picked up a plastic bag or something, but can't see any signs of one. No obvious leaks, all the fluids are full. Anyone else ever encountered this? Any thoughts?
Check the O2 sensor wires as well, sometimes they rub
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Old March 7th, 2015, 12:29 PM
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And check the throttle cable and make sure it's not laying against the engine somewhere. Mine has done that.
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Old March 7th, 2015, 02:34 PM
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Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
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Old March 10th, 2015, 12:31 PM
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Thanks for the suggestions - I poked around some more and finally found the culprit - the heat shield above the catalyst on the driver's side had broken loose and was resting right on top of the catalyst - probably had soaked up some waxoyl over the years.
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