Originally posted by mikeydo:
Hi Tour,

Thanks for the advice. If I pull the electrical connections from the MAF, would that answer the question without reseting the PCM first? If the problem doesn't get any worse, then the MAF is bad or dirty.



Sure, you can try it without resetting the PCM - shouldn't hurt anything. If the MAF is the problem & you unplug it, the problem should go away. The car will run smoother if you unplug a bad MAF.


Originally posted by mikeydo:
The strange thing, i disconnected each spark plug wire one at a time and ran the engine, and each time engine idled rougher and revved in an ugly manner, much worse than the condition now. So I assumed the wires and plugs are ok, unless one or more of them are just slightly bad.


Did cleaning or replacing the MAF improve any hesitation probs on any of your Tours? Or did the prob end up being plugs/wires?



For my cars, the problem was always the plugs & wires - Never had to replace a MAF, but did clean them (got the electronics cleaner sitting out right now...). I must admit that after fixing the plug & wire issues, the car certainly ran even BETTER after performing a good UIM/LIM & TB cleaning. Before, the car feels a bit sliggish or had power surges at low RPM when accellerating from a stop. After the cleaning, the car would pull nice & smooth right through to redline. Fuel filter helps too.


Must be that jumbly-wumbly thing happening again.