Forum Discussion
Neecies
Sep 21, 2014Explorer
What is it besides a thingie and a bastard? Will have to get my husband to explain, or maybe Escargot can, but I'm a girl not a mechanic, and best I can tell it's what controls air flow to your turbo-charger. When its insufficient, you go into limp mode, which is a forced slow speed so you can get to help maybe with a minimum of damage. We actually asked the Merc dealer we limped to expressly to check that and they did--but didn't know where it fails to look for cracks--they just checked the connections at either end and deemed it fine.
Ours, in this case, had a tiny lateral split at a seam in the middle--not visible until it was removed. (The resonator is something particular to this 5 cyl engine, apparently, an excellent engine with this one little weakness so don't you fret--buy a spare and maybe copy a set of replacement instructions off the internet to pack with it--that way, any decent mechanic in any out of the way burg can help you on a Saturday night.) We racked up quite a cost in both time, delayed travel and diagnostic $$ to determine that it was the resonator after all (and we had a spare with us all along!). And who finally diagnosed the problem? My husband who out of frustration started tearing things apart.
After all that, Bob said next time some performance issue didn't make any sense, first thing he'd do is change the resonator and see if that doesn't fix it.
Oh, one other thing about resonators, apparently there are plastic and metal (aluminum?) versions. Plastic is the original, cheaper and less lasting, but the metal one's noisier. Or so suggests internet lore.
Ours, in this case, had a tiny lateral split at a seam in the middle--not visible until it was removed. (The resonator is something particular to this 5 cyl engine, apparently, an excellent engine with this one little weakness so don't you fret--buy a spare and maybe copy a set of replacement instructions off the internet to pack with it--that way, any decent mechanic in any out of the way burg can help you on a Saturday night.) We racked up quite a cost in both time, delayed travel and diagnostic $$ to determine that it was the resonator after all (and we had a spare with us all along!). And who finally diagnosed the problem? My husband who out of frustration started tearing things apart.
After all that, Bob said next time some performance issue didn't make any sense, first thing he'd do is change the resonator and see if that doesn't fix it.
Oh, one other thing about resonators, apparently there are plastic and metal (aluminum?) versions. Plastic is the original, cheaper and less lasting, but the metal one's noisier. Or so suggests internet lore.
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