Hello Everyone,
I own a 1985 Buick Regal Limited with the 3.8L V6. After doing an extensive amount of work on the car over the last several years, it is running too rough to drive and I an running out of solutions.
Symptoms:
- Easy to start when warm, Hard when it's cold out
- It runs fine for short drives around the neighborhood, but on longer drives on hot days it begins to sputter, backfire, then dies and cannot be restarted until it cools for about 30 mins. Pressing the throttle makes it pop then it cuts out.
- Listening to the exhaust closely it sounds like it's skipping a beat or misfiring slightly. You can only hear this when next to the pipe's outlet in the rear
- When parked, if you rev it too high, it eventually comes back down then dies
- It seems to sit there and idle just fine in park, but that's about it. Lately it won't even make it down the driveway without dying.
After researching, some of these are symptoms of running lean, others are about running rich. I can't figure out what's going on.
New Parts:
- Gas tank w/ float
- Fuel Pump
- Some new fuel line
- Fuel Filter
- Spark Plugs & Wires
- Distributor Cat & Rotor
- Almost all new vacuum lines, but not every single one has been replaced
I've read that the carburetor on this motor is computer controlled and cannot be adjusted like an older model.
I honestly have no idea what to do next, and no local shops will help.
Any help would be very much appreciated!!!
I own a 1985 Buick Regal Limited with the 3.8L V6. After doing an extensive amount of work on the car over the last several years, it is running too rough to drive and I an running out of solutions.
Symptoms:
- Easy to start when warm, Hard when it's cold out
- It runs fine for short drives around the neighborhood, but on longer drives on hot days it begins to sputter, backfire, then dies and cannot be restarted until it cools for about 30 mins. Pressing the throttle makes it pop then it cuts out.
- Listening to the exhaust closely it sounds like it's skipping a beat or misfiring slightly. You can only hear this when next to the pipe's outlet in the rear
- When parked, if you rev it too high, it eventually comes back down then dies
- It seems to sit there and idle just fine in park, but that's about it. Lately it won't even make it down the driveway without dying.
After researching, some of these are symptoms of running lean, others are about running rich. I can't figure out what's going on.
New Parts:
- Gas tank w/ float
- Fuel Pump
- Some new fuel line
- Fuel Filter
- Spark Plugs & Wires
- Distributor Cat & Rotor
- Almost all new vacuum lines, but not every single one has been replaced
I've read that the carburetor on this motor is computer controlled and cannot be adjusted like an older model.
I honestly have no idea what to do next, and no local shops will help.
Any help would be very much appreciated!!!