Question about 2003 Honda Odyssey

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Whine and Smell From Engine Compt

Last night I was on my way home when I noticed a loud whine coming from the engine compartment. When the RPMs increased and decreased, the whine did as well. The temp was normal, performance seemed normal, there were no warning lights or other apparent signs or symptoms, so I drove straight home. When I opened the hood I immediately noticed an odor, not like burning fluid or an electrical problem, but like something was getting really hot. I checked all of the fluids and they were all at appropriate levels. I wasn't able to identify where either the smell or sound were emanating from. A few weeks ago I suspected that the alternator or battery may have been dying because the headlights were dim, performance seemed to be diminished and starting was starting to sound weak. I checked the battery and alternator, both checked out good, so I cleaned the contacts and terminals. This seemed to remedy the performance and starting issues, but the headlights are still a little dim and yellow. I thought maybe this was partially due to the haze on the headlights, but now I'm wondering if it's a symptom of what's also causing the whine? We purchased this van about 30k miles ago and haven't had any problems. It now has just over 117k miles. Supposedly the serpentine belt was replaced by the dealership we purchased the van from (Ralph Schomp). It looks good and tension is good. Maybe I'm being paranoid, but I don't remember the last time I heard the fan kick on ... is there a way to test that?

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Yes, there is, its in the FSM. on all hondas.
do you need that page?
or just login to and see that.

Posted on Dec 11, 2013


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SOURCE: high-pitched whine upon cranking, suddenly sluggish, smells hot

It sounds like the water pump shaft bearing has frozen up. A hint here, always replace the idler pulley and water pump when you do the belt, they make kits for this and they have all the parts that wear out along with the belt. As long as the engine doesn't get to hot you should be ok.

Posted on Jul 02, 2012

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