Rebecca_Kostya
Probationary Member
- 2
- 0
- May 23, 2022
-
North Pole,
Alaska
I’m a new member, first time poster here at DSMTuners. I have a 95 Talon TSi awd 5-speed with just under 100,000 miles on the Mitsubishi motor. I’m only the second owner, and have owned the car for three years. The first owner kept everything original, and so this car has had no modifications done whatsoever. I haven’t had to do much to keep it on the road so far, and I really love the turbo, so trying to take care of it the best I can. Overall, the car runs great, and I only drive it during the short Alaska summers to keep the mileage down.
It has one issue that I’ve noticed that I’m looking for some help diagnosing. It starts easily, and the idle when the motor is cool stays low and steady at about 800-900 rpm. After I drive it 20 miles on the highway (usually at 75-85 mph) the motor heats up, and the temp gauge stays in the normal range. It continues to idle normally during stop and go driving through town until I get to work. I park, let it idle for 1-2 minutes (because I read you’re supposed to let the turbo cool down?? Not sure if that’s true), then I turn it off.
The issue only shows itself when I start the car again before the motor has completely cooled (like 3 hours, unless it’s a hot day). When I restart the car, it starts easily, but begins idling at 1500 rpm. If i rev the motor, the idle rpm creeps up to even 2500. To be clear though, it does not surge. It holds steady at whatever idle it rests on. Getting on the highway and driving home sometimes helps, and when I arrive at home the idle is closer to 1200, but I’m assuming that the highway speeds are helping it cool down, and being cool helps the problem?
I have no idea what’s going on, and after asking lots of mechanics, I’m beginning to think it’s a Mitsubishi motor dsm quirk, so I’m hoping one of the brains on this forum can help me figure out what the problem is. Thank you for reading! Love this forum!
It has one issue that I’ve noticed that I’m looking for some help diagnosing. It starts easily, and the idle when the motor is cool stays low and steady at about 800-900 rpm. After I drive it 20 miles on the highway (usually at 75-85 mph) the motor heats up, and the temp gauge stays in the normal range. It continues to idle normally during stop and go driving through town until I get to work. I park, let it idle for 1-2 minutes (because I read you’re supposed to let the turbo cool down?? Not sure if that’s true), then I turn it off.
The issue only shows itself when I start the car again before the motor has completely cooled (like 3 hours, unless it’s a hot day). When I restart the car, it starts easily, but begins idling at 1500 rpm. If i rev the motor, the idle rpm creeps up to even 2500. To be clear though, it does not surge. It holds steady at whatever idle it rests on. Getting on the highway and driving home sometimes helps, and when I arrive at home the idle is closer to 1200, but I’m assuming that the highway speeds are helping it cool down, and being cool helps the problem?
I have no idea what’s going on, and after asking lots of mechanics, I’m beginning to think it’s a Mitsubishi motor dsm quirk, so I’m hoping one of the brains on this forum can help me figure out what the problem is. Thank you for reading! Love this forum!
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