Sorry Im late with this but on the 3.3L the MAF can be cleaned I use Denatured alchol and clean with a q-tip the wires then I use dish soap with a q-tip to wash off any other residue then rinse with cool water to remove the soap.. These new MAF will last almost forever unless the wires break.. I had the same symptoms with mine and I cleaned it and reinstalled and now it works great.. Saved me 150.00 dollars on a new one..