thrush Posted January 16, 2005 Share Posted January 16, 2005 This problem started about a year ago. It would loose power once every three months, then once a month, once a week, now every day. I drive four hours every day. Sometimes for the first hour, or maybe the second hour,or maybe the third hour i loose more than half of the engines power until the engine gets to 3300 rpm when i get full power back. When it shifts i have to wait till the rpms get to 3300 before i have any power. There are no engine codes. Usually during the four hours of driving the engine will run perfect for one or two hours but not all four. Quote Link to comment Share on other sites More sharing options...
hklaine Posted January 17, 2005 Share Posted January 17, 2005 Is it safe to assume that regular maintenance has been done on this car? Spark Plugs & Wires Fuel Filter Air Filter Fuel Injector Cleaner "When it shifts..." AT car? -Heikki Quote Link to comment Share on other sites More sharing options...
lmdew Posted January 17, 2005 Share Posted January 17, 2005 You might try dropping the exhaust pipe of the back of the CAT's and see if it makes a difference. If the exhaust is still very quite, you may have a plugged CAT. I would think you would get a code, but who knows. It's just two bolts, so it's worth a try. If there is no change, drop the CATS, it will be straight pipe now an should rev like crazy. Quote Link to comment Share on other sites More sharing options...
thrush Posted January 19, 2005 Author Share Posted January 19, 2005 Is it safe to assume that regular maintenance has been done on this car? All maintenance is up to date. It is a automatic Spark Plugs & Wires Fuel Filter Air Filter Fuel Injector Cleaner "When it shifts..." AT car? -Heikki h All maintenance is up to date. It is a automatic. Quote Link to comment Share on other sites More sharing options...
coloradosubarules Posted January 19, 2005 Share Posted January 19, 2005 It kinda does sound like the cat. Perhaps when it gets hot it swells therefore not letting axhaust flow properly. If this happens at night get out and look at the ground under the car. It should look like your car has neon tubs under it because your car it glowing red because it is soooo hot. J/k If and when this happens you might want to pop into an exhaust shop and have them do a thermo test. They use the laser thermometer to take the cats temp. If it is out of range for your vehicle then they know what the problem is. I had that test done on my RV and turns out that the cat was the problem. It's a good place to start. I knew mine was clogged because my car was running like crap and my wife's feet were getting very, very hot. Quote Link to comment Share on other sites More sharing options...
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