I am a new member with a (apparently fairly common) problem. My 1993 Chevy Lumina APV with 3800 motor did alot of sputtering/cutting off and when taken to my mechanic the Upper Intake Manifold was melted. It was replaced and it did the same thing driving home from the mechanic--I have not driven it since then but it does sputter when I start it in the driveway. I have read alot of posts and this seems common among the Series II motors--is the problem common with my motor also?? I have new(er)plugs, wires, fuel filter, TPS (new), PCV valve, thermostat and Knock Sensor. This is my family vehicle (wife and 3 kids) with 280,000 km (approx 170k miles) and normally drives great with excellent reliability and gas mileage.
I have not yet checked the Catalytic Converter and will do so. Any other thoughts/ suggestions would be greatly appreciated??
Thanks for the help,
p.*. On a side note I am a big fan of the Regal/GPrix and Bonneville/Eighty Eight etc cars. I have looked at the pics and there are some very sweet cars here. Both my brothers own 3800 powered Olds Ninety Eights and my Dad owned a 3800 Regal. My other car is also 3800 (
)powered---1987 Grand National.