Marccus
New Member
This problem has been going on for a year or two.
After starting the car, the engine idles fine. When I start to give gas and let up the clutch from 1st gear, the car goes nowhere. I experience loss of power, stuttering, and what sounds like backfiring (but not loud, like a popping sound, or the "glup" sound you here when a large bubble of air is released under water and starts to rise).
This will persist until I work the clutch and the gas to get the rpms above say 2,000 to 2,500.
Once the rpms are above that, car runs fine and I can move through all the gears. When slowing down to a stop, car runs fine and idles fine at stop. But when I attempt to move from a stopped position the same thing happens.
Now I learned that if I shut the engine off ONCE, the problem goes away and the car runs fine at all rpms. This worked EVERYTIME!
.. until now. madflame
Now, I may have to shut the car off two times in a row to get it to behave properly. shrug
I did a search and came up with some ideas.
But in computer parlance, when you shut something down and restart and the problem goes away or you encounter another problem, you have an "initialization" problem where the variables that should be reset to their default/base values (or set to zero) are not.
In this case that could only mean the computer. But I get no codes and I've cleaned and checked every electrical connection. I'm starting to replace vacuum lines, but I don't know enough about the vacuum system at this point to investigate further.
I thought it might be the camshaft sensor, since the seal was leaking oil. I replaced the sensor and seal and there is no leakage and I made sure I hooked up the camshaft sensor properly.
How about bad crankshaft sensor?
Any ideas and thought would be appreciated.
1989, MTX, stock (with minor additions), 282,000 miles,
plugs and wires are relatively new at 10K ago.
After starting the car, the engine idles fine. When I start to give gas and let up the clutch from 1st gear, the car goes nowhere. I experience loss of power, stuttering, and what sounds like backfiring (but not loud, like a popping sound, or the "glup" sound you here when a large bubble of air is released under water and starts to rise).
This will persist until I work the clutch and the gas to get the rpms above say 2,000 to 2,500.
Once the rpms are above that, car runs fine and I can move through all the gears. When slowing down to a stop, car runs fine and idles fine at stop. But when I attempt to move from a stopped position the same thing happens.
Now I learned that if I shut the engine off ONCE, the problem goes away and the car runs fine at all rpms. This worked EVERYTIME!
.. until now. madflame
Now, I may have to shut the car off two times in a row to get it to behave properly. shrug
I did a search and came up with some ideas.
But in computer parlance, when you shut something down and restart and the problem goes away or you encounter another problem, you have an "initialization" problem where the variables that should be reset to their default/base values (or set to zero) are not.
In this case that could only mean the computer. But I get no codes and I've cleaned and checked every electrical connection. I'm starting to replace vacuum lines, but I don't know enough about the vacuum system at this point to investigate further.
I thought it might be the camshaft sensor, since the seal was leaking oil. I replaced the sensor and seal and there is no leakage and I made sure I hooked up the camshaft sensor properly.
How about bad crankshaft sensor?
Any ideas and thought would be appreciated.
1989, MTX, stock (with minor additions), 282,000 miles,
plugs and wires are relatively new at 10K ago.
